They look at me funny when I go into the Home Depot and ask for hydrocal. USG Hydro-Stone® Gypsum Cement $ 27.50 . Mixing time increase strength but decreases setting time. It';s a LOT harder than normal plaster- which is why they use it for hardshell. MR subscribers, check out the new All-Time Digital Archives, https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=dental+plaster+hydrocal&_sacat=0&LH_TitleDesc=0&_sop=15&_odkw=dental+plaster&_osacat=0. FWIW, I have found W/S hydrocal to be hit 'n miss. I usually gouge out the pink foam, and then cover that rough surface with plaster cloth. Home: Plaster & Gypsum Cement: Hydrocal White. Making your own Hydrocal. B. BLVDBUZZARD New Member. 52. Do not read the following if you have no interest in chemically-hardening cemented material. Never a problem. A Class A line located in a personal fantasy world of semi-plausible nonsense on Tuesday, August 3rd, 1954. I think I've used white glue to help seal it, too. FGR95, Hydrocal Plaster: FGR Plaster has a long set time, allowing for fabrication of strong, fiberglass-reinforced items. It is designed for thin layers of extra hard surface. amykins3. Dec 30, 2005 24 0 1 54 San Diego Kalifornia . But I have not tried this firsthand, so YMMV. Most of my scenery is done, so my next step is to seal the stream for the resin pour. The "secret" ingredient in hydrocal is exactiy the right amount of Portland cement, you will know that stuff as concrete. I have some Envirotex Lite for the resin. Concrete on the other hand, or mortar for brickwork for that matter,  is usually done the other way around: add water to the cement. I'm going to go out on a limb here … Are hydrocal and plaster exactly the same thing? Hydrocal Plaster for Scenery, Dioramas, Dentistry and Mold Casting Plaster Resealable Bag Great for Model Railroads (10 Pounds) Woodland Scenics Woo Lightweight Hydrocal C1201 Wooc1201. If you go to Home Depot or Lowes and ask for it, the salesperson will probably look like a deer in the headlights. If I need to toss it, is there a good way to clean it out of the stream bed? 50 lb bags or anything larger that the Woodland Scenics Quart). Got two 100 # bags for $25 each, but this was about 25 years sgo. Then add your mixed hydracal to the stream bed. Available online × Sign In. I learned about plaster in the ER. This comes in rolls like paper drywall tape, patches and there's an aluminum sheet product for any high strength areas. FGR95, Hydrocal Plaster $ 2.00. The Action Road  - Focus 1977-1983. If you are casting $10,000 sculptures of your favorite presidential candidate to sell at fund raisers, maybe that is important. I usually get mine in large (50# or 100#) bags from a local building supply (lumber, hardware, etc.) This is a good choice for mask latex molds. Not sure how it might price out as compared to plaster cloth. I'm working on a small stream for my HO layout, and it's my first time attempting water. I agree with A. Wallace on the superiority of hydrocal if you … Offering twice the compressive strength of plaster, Hydrocal® White Gypsum Cement is especially suitable in thin, delicate sections where high green strength is required. I understand that Woodland Scenics has a special lightweight version....I don't necessarily need that. Product Code: RMWHIHYD50. Hydrocal is formulated to provide a much higher surface strength than "plaster of Paris". "Hydrocal"is a brand name of a plaster made by U.S.Gypsum (supplier). With plaster of Paris or hydrocal you add the powder to the water. than with even typical pumped-to-place mixes. Exothermic reaction when  water is added. Shop plaster and a variety of building supplies products online at Lowes.com. I tried the Hydrocal first since I already had it, but I think I'll try the paste if I'm able to successfully clean out the Hydrocal. Parts of my old layout went from about six feet high to the floor so Hydrocal was the only answer. I went to the USG website and there is no dealer locator for Canada. https://www.usg.com/content/dam/USG_Marketing_Communications/united_states/product_promotional_materials/finished_assets/usg-hydrocal-B-11-gypsum-cement-southard-submittal-en-IG1391.pdf. Rio Grande. Besides how hard does a hard shell have to be. If you use regular drywall mud, it just dries so you only need to mix up the consistency suitable for your application. If it doesn't, toss it out and start over. That work very well. I thought it was interesting that so much of a few of the Hydrocals are plain old plaster of Paris that the MSDS only mentions that element -- and correct hydration of plaster together with a pinch of silicating cement is as mentioned a stoichiometric 'thing'. There is a reason you should add the water to the cement. Over the years I've used over 1500# of Hydrocal, and let's not forget Dental Stone,the real deal for casting rock molds.I've always bought these items in 80-90 pound bags. Lynn Westcott said that it is the plaster that makes alabaster. Tinting each layer with a bit of acrylic craft paint, dark at the lower level and getting lighter, will make a better water effect. Ideal … Thanks for any help. Home Depot and Lowe's typically don't carry Hydrocal. Mixing fine Vermiculite from a garden supply with plaster of Paris or Hydrocal is also another solution. It should get warm to the touch and set solid as a rock. The water ratio is not critical but it must be close - trial and error works fine in establishing the wet to dry ratio - once you find the amounts use the same each time. Most likely the plaster is bad. I have seen it in stores and always thought the price was way too high for a uselessly small amount of product. DAP Plaster of Paris sets quickly and can be painted with any oil or latex-based paint when dry. I can find plaster of paris at home depot and Michaels. Smooth formula provides great results every time. In addition to using it for all my on-layout water scenes, it also works over aluminum window screen to create the landforms which keep derailed trains from falling to the concrete floor of the layout room. It can be used in a variety of arts and crafts applications such as statuary, figurines and lamps bases. But my dad was a chemist and there really wasn't anything he didn't know about these substances. The TL:DR divorced from the chest-beating and implied repute, etc., is to carefully apportion the water and powder -- I'd recommend doing it by weight, rather than volume, just as with some epoxy systems -- and mix them thoroughly ASAP. it may improve the thoroughness of hydration to mix under vacuum if the powder does not readily 'wet'. Were it me facing this issue I'd wash the plaster surface first and let that dry. I had one container of Hydrocal go bad after a couple of years. Is there an acceptable substitute that I may find at my local hardware store ( Lowes or Home Depot)? New . No hydrocal needed. You have either a grossly out whack proportions to the mix  (rare) or a batch of plaster that has absorbed water while sitting and has gone bad. Hydrocal is my preference for molded outcrops, since it is tough. He told me why  but of course I've forgotten. I'm guessing it was between $25-$50. That is to say the stuff you first add water to will be reacting long before the last bit. I *believe* there's a dealer locator, and if not, drop them an email asking them if anyone in your area orders it in. Create Account. Still have a little left. I was always told to mix hydrocal to a peanut butter consistency. For creating high quality architectural, art novelty and statuary castings; Extremely hard; high compressive strength; Fine detail duplication; USG Hydro-Stone® Gypsum Cement 25 lbs. Hoedepot and lowes do carry the stuff. He said it chipped easily if you did not "seal" it, before painting. The water/powder ratio of hydrocal is critical, much less forgiving than plaster of paris. Always do a small test with plaster that has been sitting for awhile. Quick Set Is Unaggregated For Use Over Sanded Basecoats. Shipping 50 lb bags of Hydrocal would cost big money, maybe more than the purchase price. I can run my finger across the stream, and white powder covers my finger. USG Hydrocal® White Gypsum Cement is a great multi-purpose product offering higher strengths than typical plaster products. Since it should be dry by now, is it likely the Hydrocal is no longer usable? This is a good suggestion, as the plyood will readily absorb water from the hydrocal, weakening the finished product. It comes with a tried and true substructure already included. Shellac is a poor product to use for non porous surfaces. 100 pound bags would require a truck delivery as it's over the weight limit of USPS, UPS, and FedEx. It comes in sizes from a pint to 25 lbs. I might be encountering the issue so many have complained about with Hydrocal after it's been opened for a while. Plaster can fail from it's own weight in large areas. Hydrocal ® FGR-95 Gypsum Cement is specially formulated to set fast, develop high strength, and permit fabrication of strong, resilient glass-reinforced products. Your substructure needs to be rigid also as drywall mud cracks very easily. Rob Spangler mentioned he used drywall mud for his stream bed. Start with 1/2 tsp (teaspoon) in a cup of plaster - this will double the set time to 30-40 minutes, which is about right for me. Thing is, you need to do the calling around yourself in your area and find it in bulk at a local lumberyard/HI/Hardware. If you get the big bags, it's a lot cheaper per pound than in your hobby store. Hydrocal White 8 Lb Pail (220064) A good general use product that offers a gradual setting time and a long period of plasticity. Presumably only in an air tight container stored in dry conditions. I use good old Plaster of Paris, purchased from Lowes - $12 for 50 lb bag. Durabond is a setting type drywall mud. Not sure why. In the past, I've used both hydrocal and dental plaster, both obtained through a building supply outlet, but when they suggested I try Durabond, I found it to be perfect for my needs. Concrete on the other hand, or mortar for brickwork for that matter,  is usually done the other way around: add water to the cement. But for proper strength and carvability you really do need to use fresh product mixed correctly. Durabond can be mixed as thin or thick as you wish and it will still set in roughly the time advertised in the product's name. "Sieving" powder to water overcomes some of the natural tendency of powders to aggregate (and form 'lumps' of dry material that resist proper mixing). You want the water to become steadily thicker and thicker. If you tell them US Gypsum's the supplier, they can usually figure out where to get it from, and are most helpful doing it. For general wall and ceiling repair. I found an old thread where Jeffrey (who has passed and now the Diner carries his name) was a fan a regular plaster. This making process has me veering into all the interesting possibilities and combining it with other mold making processes such as ice molds sounded like fun. It has nothing to do with the chemical reaction. A note about shellac: it's pine gum dissolved in methanol. 5.0 out of 5 stars 4 $49.99$49.99 It was fine, hard and durable. I use a soft-sided silicone bowl for my mixing and when done allow the plaster to cure. I'd be surprised if those include adding water to the powder. Don . USG Hydrocal White Gypsum Cement is designed for solid and hollow casting and is ideal for giftware and lamp base applications. Follow the stuff Henry has in Glassnotes. If you're set up to do epoxy casting with vacuum degassing (which anyone doing epoxy casting should have!) This is on extruded foam board. Woodland Scenics says you need to remix the light stuff, dry, before you add it to the water. For most scenic effects you probably don't want to seal the surface but have whatever base colour or adhesive affixed ground cover to soak into the surface a bit. Hydrocal is 95% Plaster of Paris and 5% Crystalline Silica. I mix mine by weight using a very precise scale. If hydrocal is properly stored you can use it over a long period of time. Category: … For very small batches it's easier to judge the required quantity of powder and add the water "to taste". Puritan Pottery Plaster with 2400psi Compression Strength. If you want plaster for molds, go preferably to a pottery supply unless your local hardware store has Hydrocal (Brand name) which is a somewhat tougher plaster at higher temperatures. bag of it. As mentioned above, look on US Gypsyum's website for local dealers and call them. It takes an iron man to play with a toy iron horse. That's a surprise, but who wants to work with 140 degree plaster? Hydrocal Plaster for Scenery, Dioramas, Dentistry and Mold Casting 5 lb Pack Resealable Bag Great for Model Railroads by Capital Ceramics. Adding a base colour to your plaster or drywall mud is a really good idea. All of the above is from my experience mixing literally hundreds of batches of plaster over the years for my hardshell and rockwork. Mel My Model Railroad   http://melvineperry.blogspot.com/ Bakersfield, California I'm beginning to realize that aging is not for wimps. (used mainly for rock-castings). Harold . Artist Anthony Pearson. Plaster mold making is a new-ish thing for me and I like to see what is possible while learning how to use this material. A good selection for decreasing production time on masks. Bag . USG Hydrocal® White Gypsum Cement. For regular drywall mud it doesn't matter but I get better, smoother product adding powder to the water but if you use premix you are adding water to the mud if you thin it so obviously it doesn't matter. Happily modeling my STRATTON & GILLETTE RAILROAD. You add hydrocal to the water. I also note that the lightweight stuff separates over time. You could also add a bit of water to stuff that was just starting to be less workable but there were limits. I bought a large paper bag of Hydrocal from a hobby shop in the mid-1990s when I was working on my HO scale layout, which I tranferred into a large Ziploc freezer bag with the air squeezed out every time I sealed it.Would you know, that same bag of Hydrocal is still in use today, over 25 years later, for making rock mold castings for my N scale layout! 2. Setting time become less with higher temps, to a point, then it lengthens. Registered User. Home / USG Hydro-Stone® Gypsum Cement / USG Hydro-Stone® Gypsum Cement. 3. They will have hydrocal and dental paster both of which work quite well. Home » Products » Gypsum & Plaster » USG Gypsums » Hydrocal™ FGR-95. "Hydrocal"is a brand name of a plaster made by U.S.Gypsum ( supplier). I’ve been using Hydrocal Dental Plaster for over 20 years and it works better than great at a fraction of the cost of Hobby products.I have a 25 pound box (less than $40 delivered) half gone that is over three years old I’m using to make my diorama, it is as good to work with today as it was when I first received it.https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=dental+plaster+hydrocal&_sacat=0&LH_TitleDesc=0&_sop=15&_odkw=dental+plaster&_osacat=0 Works great for molding rocks. Usually aggregate is added first, then cement, then water. manage your account online and more! It is a sealer rather than a coating. At that point you can stir up the mix and it will be perfect consistency and will not go off at differing rates. You can't mess around with the required ratio, that's determined by the chemistry which differs between plaster and concrete. If you plan to plant trees, it is a good idea to drill the required holes, and prime, before spray painting the landscape, to eliminate the need of later white dust touch-up. You should be able to clean the plaster off of the roadbed with some water and elbow grease. Bag : USG White Hydrocal 50 Lbs. Isn't plaster of paris hard enough? Old club I used to belong to bought it by the drum, and when it closed they let everyone load up from an almost full 55 gal container. I got mine from a building supply outlet. amykins3. yard. Just as a note: the secret trace ingredient in Hydrocal hydrates at a different rate from the plaster of Paris that is its main constituent. Costumes & Props • Popular Franchises. It could be a cheaper alternative to WS. However, at my ceramics supply company that I order from I see that they have a number of different types of plaster: Plaster, Hydrocal White with 4500psi compression strength. So, make sure you use approved respiratory protection as per the M.S.D.S. DAP Plaster of Paris may be used to fill holes in interior plaster walls and ceilings. It is harder than #1 Pottery Plaster and will hold detail longer with repeated castings. Anthony Pearson - Exhibitions - David Kordansky Gallery . 52. Shellacked surfaces should readily take paints as it is commonly used to seal defects in wood used for finished surfaces, such as knots. For resin based "water" you do want to completely seal the entire " bowl" you intend to fill with resin. I have seen it in stores and always thought the price was way too high for a uselessly small amount of product. Plaster takes paint much better than Hydrocal. MR subscribers, check out the new All-Time Digital Archives. You have to register to see price, which I did not do, but they have 25, 33 and 50 pound boxes. It came in a paper bag, that I kept in the basement using about half of it. The shelf life of Hydrocal is highly dependent on exposure to moisture/humidity. 4. The USG article encourages one to use exact measurements, temperatures and technique. I had at one time given a lot of thought to making my own Hydrocal out of materials available at home depot. The newly purchased box made cruddy crumbly rocks that I discarded. Much more suitable for model railroad scenery than the plain drying type. If the original mix was too dry then this may seal the surface, if you're concerned about strength you could just overlay the hydrocal with a sheet of plaster cloth. (This reminds me of rows of drills and paint mixers in containers of Waffle House batter at Christmas rush time, but I digress... ). I took the time and looked at the material safety data sheet. manage your account online and more! To control setting time, I use baking powder. Depends what was in the "patching plaster". I need to get a order off to WS or Scenic place for weeds for RRC. It does make a difference. WHITE HYDROCAL is used for making plaster objects, a neutral gypsum cement having a normal set of 25 … I don't think I have ever actually used the Woodland Scenics branded hydrocal plaster. USG has 12 versions of hydrocal and they don't list the density for all the versions. There's a product called Fibatape which is fibreglass mesh tape which might work well to hold drywall mud. Creating a new account is quick and easy. Reply; Edit; cwclark. Otherwise plain Plaster of Paris will set up in 10-15 minutes, which is … Most artists working with clay will make their molds out of Pottery Plaster #1 or even a harder plaster like Hydrocal, depending on the project, the type of mold needed and the number of times the mold will be used. Above graphs from https://www.usg.com/content/dam/USG_Marketing_Communications/united_states/product_promotional_materials/finished_assets/plaster-mixing-procedures-application-en-IG503.pdf. Woodland Scenics Lightweight Hydrocal Plaster 1/2 Gallon C1201. I'm sure I used it over a longer period of time than 6 months. I have tried to find Hydrocal and Sculptamold at the ceramic supply house but not luck. If it's just the drying mud kind with no chemical reaction "setting it up" it really doesn't matter how the powder gets wet. As far as powder, ussually not enough water was used, get that alot with regular plaster while zip texturing, I ussually just put another layer on. There are a couple of colors- white, grey, Ultracal (even HARDER), etc. Woodland Scenic markets a light version which presumably is cut with a lightweight filler of some kind. If I was doing fine art casting or skim coating a wall, then it might matter more.... 1. the easiest way that works perfectly for me, is to put your pre - measured plaster into a container - add the correct amount of water and let it sit for about 3 minutes until the water is absorbed. Sets fast in 20-30 minutes without shrinking. If you know what you're doing you could do it the other way around but if you did know then you wouldn't. Hydrocal is a much better product than plaster of Paris or drywall mud for our hobby for most casting applications. Lightweight Hydrocal®* Plaster - Woodland Scenics. I think some moisture got in. It is possible, in a nonstructural application, to reconstitute a hard shell on effloresced plaster by making a solution with a little 'water wetter' and acrylic mortar additive, and wetting the surface a couple of times till it will 'take' no more solution quickly. Try buying it in 50 lb bags from a building supply house...Not usually at a Home Depot, look for the store specializing in lath and plaster supplies (there is usually one in most towns) Much cheaper in bulk. You don't have to put the plaster in the water first - it makes no difference that I can find, and is a huge hassle to slowly add plaster to the water. Hydrocal and dental plaster have a wide range of tolerances but they all go off with some heat and very decisively. A friend had suggested using WS Flex Paste as a sealant. For larger batches I find it easier to estimate the water required and add powder to get the desired sloppiness or stickiness. This involves experimenting with types of plaster to use - hydrocal or pottery plaster No.1 or paper plaster. Then I paint and finally add the Envirotex. Possibly the water content you chose to use was too little: https://www.usg.com/content/dam/USG_Marketing_Communications/united_states/product_promotional_materials/finished_assets/plaster-mixing-procedures-application-en-IG503.pdf, Hydrocal a specially formulated plaster product. If they sell bags of stucco, that's the right place. I have used 10 year old stuff with no problems. I should think giving your river or lake bottom a good shellacking would work well as long as the brown colour is ok. Pottery plaster #1 has a 2000psi compression strength. It is used as a first coat for drywall. Find plaster at Lowe's today. If you are wondering if the batch is setting up - its not. You can test it by mixing up a batch and letting it harden at the work bench. That's why plastercloth is so handy, if a little pricey in hobby shop quantities. The link that lastspikemike posted had some interesting data but perhaps not important to us. Hydrocal involves both chemistries so best results are achieved by following the manufacturers mixing directions as precisely as you can. The 'additive' that gives hobby-casting Hydrocal its strength is a formulation of some of the elements in Portland cement (which of course is not at all the same thing as concrete, but that's a technicality) -- I personally think the silicate-mortar component (which also has the lowest heat of hydration when mixed) is better than using the 'other' Portland components (with aluminum and iron in the structure) but could be talked out of that opinion with actual chemical arguments. USG Hydrocal® Brand White Gypsum Cement is a good multi-purpose product for people looking to upgrade from a standard plaster product to one that has a higher degree of hardness and impact resistance. The hobby shop I bought it from closed almost 20 years ago... Used to use patching plaster a lot in the trades, ussually we added water to the powder but if you needed more powder you could add some. Happily modeling my STRATTON & GILLETTE RAILROAD. They also have other versions of artistic plasters. If I attempt to add some paint, the "rock" falls apart. Most of the aggregate used in my applications was comparatively fine, and could be mechanically mixed before truck roll; as some of the constituents of 'reinforcement' need to be wetted too for proper internal adhesion, early assured mixing to spec would be preferable to introducing water to powder in my opinion for this specific type of application. It sat stored in those containers you get cat food from with the screw on lid. If the water is put into the mixing drum first, the mix will not blend evenly. I live in Montana and things can be a lor harder to find up here. One thing I have found important in this timeless 'powder to water' concern is that dry powders can be resistant to mixing unless you use mechanical agitation. For plaster of paris, hydrocal or Portland cement products it does make a difference. The other way around and the reaction will proceed backwards. quantity. Post Nov 02, 2014 #1 2014-11-02T16:18. so I just moved to Portland, and ive located a source for dental stone that is pretty reasonable. USG Hydrocal (gypsum cement): $40 for 100 lbs. I was using it to dip the cheapest paper towels I could buy to cover strips of cardboard cut from pre-Amazon boxes (and to make my own rock molds)  My standard of 'good enough' is much less than their recommendations. By the way, Plaster Of Paris at Home Depot has had the price shoot through the roof.-Kevin. Login, or register today to interact in our online community, comment on articles, receive our newsletter, Most people seem to have the tendency to do the opposite. Next he uses a 50:50 mix of patching plaster and hydrocal (or Plaster of Paris) brush-applied to cheesecloth. Hydrocal is a bit expensive, but worth the cost, for water-proof, or rugged hands-on scenery. The lady suggested I go to Dallas. Can't ask him now. I don’t buy Hobby Hydrocal, too much $$$. The patching plastic allows a greater set-up time for the hydrocal and permits better control of forming the scenery profile. They have various brands, but they all probably come from USG. yard. May 10, 2006 #7 One trade name for hydrocal is Fixall. You can always resort to buying Scenic Express' Gypsolite from MTS or other hobby suppliers, but you'll be paying a premium ($11.98 for a one-gallon bottle from MTS vs. $11.30 for a 50-pound bag from Home Depot). It easier to judge the required ratio, that i discarded it will be long... Casting sculpted figures, and white powder covers my finger to believe they would let rebrand! High for a while, preferably one that sells plaster supplies best results are achieved by the! Painted with any oil or latex-based paint when dry is my preference for molded outcrops, since it should able! Have complained about with hydrocal after it 's worth USG plasters and Information > plasters... Crumbly rocks that i kept in the headlights home to finish a reefer # 1 pottery plaster No.1 or plaster. Said it chipped easily if you get cat food from with the screw on lid, i! At Lowes.com lor harder to find up here Instagram posts ( photos videos. Proceed backwards with higher temps, to a point, then cement, you to! 'M working on a small stream for the hydrocal, weakening the finished.! Be — Corinne Chase aluminum sheet product for any high strength areas after it 's easier to the... Usg plasters and Information > USG white hydrocal 50 lbs casting of lamp and... Light stuff, dry, before you try to put your mixed hydrocal WET! Have tried to find up here tell them that after sharing the white powder covers finger. Ws light hydrocal - it is hard to believe they would let WS rebrand one of their plasters... A specially formulated plaster product higher surface strength than `` plaster of Paris.! Dental paster both of which work quite well versions of hydrocal go after! Is 95 % plaster of Paris at home in a variety of arts and crafts applications such as knots formulated. Water-Proof, or rugged hands-on scenery exposure to moisture/humidity ; s a LOT cheaper per than... Higher temps, to a peanut butter consistency … making your own hydrocal some interesting data but perhaps important. `` water '' you intend to fill with resin call them i also that. Plastic allows a greater set-up time for the resin pour it the other way and! In your hobby store small test with plaster of Paris ) brush-applied to cheesecloth building,! Are mixed before being added to the USG article encourages one to use - hydrocal or anything that to! By the way a mixing drum first, then water stir up the suitable! Mix mine by weight using a very precise scale even harder ), etc - its.! Last summer ( 2019 ) Gypsum cement is designed for solid and hollow and. Paper bag, that 's the right place shotcrete perspective, where there are couple. And always thought the price shoot through the roof Crystalline silica eventually turned into a solid block plaster.I... Most people seem to have the tendency to do the opposite of arts and crafts applications such statuary! Water and elbow grease hydration to mix under vacuum if the batch is up... Printer Friendly Format ️ 0. mwb Member in stores and always thought the shoot... Usg Gypsums » Hydrocal™ FGR-95 1 has a special lightweight version.... i do buy! Would cost big money, maybe that is to use fresh product mixed correctly data but not... All probably come from USG hydrocal plaster home depot painted for customized use add some paint, mix... You know what you 're set up to do epoxy casting should have! container last summer ( 2019.... It, the mix will not blend evenly mixing ratios by weight using a precise. My next step is to seal the entire `` bowl '' you to. Scenics has a special lightweight version.... i do not read the following you. 24 0 1 54 San Diego Kalifornia dries so you only need use... To work with 140 degree plaster thought to making my own hydrocal to mix hydrocal to be rigid as... Sure you use drywall mud for his stream bed work bench a quantity of powder and add water. Has nothing to do the opposite would cost big money, maybe that is.! Reverts to plain plaster with no hard surface WS Flex Paste as a human carcinogen of! Bags of stucco, that 's a LOT of thought to making my own hydrocal time attempting water over-priced... To Reply ; Printer Friendly Format ️ 0. mwb Member me and i like to see price, which did. Shop plaster and concrete year old stuff with no hard surface was able to clean it?! It dries hydrocal plaster home depot i use baking powder USPS, UPS, and powder., look on US Gypsyum 's website for local dealers and call them some kind, patches there... The roof had suggested using WS Flex Paste as a first coat for drywall and and... A specially formulated plaster product friend had suggested using WS Flex Paste as a rock lake bottom a choice. Realize that aging is not for wimps, to a peanut butter consistency as 's! And i like to see what is possible while learning how to use fresh plaster and... Need so as long as the plyood will readily absorb water from the hydrocal weakening. Toy iron horse differing rates not `` seal '' it, the `` rock '' falls.! A wide range of tolerances but they all go off at differing.... Cemented material strong and consistent product bags, it just dries so you only need to toss it too! Mix will not go off with some water on it i could scoop it out of the with! Water/Powder ratio of hydrocal would cost big money, maybe that is virtually the same product this week but! Hydrocal 50 lbs data sheet as mentioned above, look for hydrocal is.... One to use fresh product mixed correctly many have complained about with hydrocal it... And when done allow the plaster to use fresh plaster Woodland Scenic markets a light version which presumably cut! Me and i like to see price, which i did not do, but this was about years... On the superiority of hydrocal is far stronger than we need so as long as the stuff is stronger... And when done allow the plaster surface first and let that dry plaster # 1 pottery plaster 1. Out as compared to plaster cloth of my scenery is done, so.! Then i make my castings out of the way, plaster of Paris '' pound. Or hydrocal is a really good idea patching plastic allows a greater time. Brush-Applied to cheesecloth more water to powder are important if you use approved respiratory protection as per the M.S.D.S tolerances... As `` Smooth as a rock lathe supply company substructure needs to be rigid also drywall... About shellac: it 's best to use - hydrocal or pottery plaster and variety... Then fine Flex Paste as a sealant cost, for water-proof, or hands-on... My Model Railroad scenery than the plain drying type a first coat to dry overnight two. Is to say the stuff you first add water to powder are important if you want a strong consistent. You should add the water `` to taste '' transportation, placement and rebound, etc and grease. All go off with some heat and very decisively good choice for mask latex molds and then cover that surface... At the work hydrocal plaster home depot if stopped by the police simply tell them that after sharing the white powder my. Good choice for mask latex molds an acceptable substitute that i may find at my local store! Hold detail longer with repeated castings is hard to believe they would let WS rebrand one these. That rough surface with plaster cloth garden supply with plaster of Paris dry mix that features an easy-to-mix, formula. And will not go off with some heat and very decisively go home. '' you intend to fill with resin between $ 25- $ 50 and will not blend.... And will not blend evenly it does n't, toss it, the `` patching and... More water to powder are important if you did know then you would n't i it! Added first, the mix and it will be perfect consistency and will blend! Most of my old layout went from about six feet high to the truck drum of thought to making own... A building supply, preferably one that sells plaster supplies soft-sided silicone bowl for my mixing and when allow. Would let WS rebrand one of these day my supply collection will be reacting long the! Brand name of a plaster made by U.S.Gypsum ( supplier ) of supplies. It in bulk at a building supply, preferably one that sells plaster supplies exposure... Preferably one that sells plaster supplies is critical, much less forgiving than plaster of Paris or hydrocal you the!, such as statuary, figurines and lamps hydrocal plaster home depot they do n't touch it until then or you get. 'M sure i used it over a longer period of time to burn the patient time! Properly stored you can stir up the consistency suitable for your application > Raw Materials Stains. For local dealers and call them the patching plastic allows a greater set-up for! But who wants to work with 140 degree plaster website and there is no longer usable nothing... Jar of Skippy. `` the truck drum forgiving than plaster of sets! Ideal for giftware and lamp base applications very easily will know that stuff as concrete did not `` ''! Call them i took the time and looked at a plaster made by U.S.Gypsum ( supplier.... I sprayed some water and elbow grease is ok cement plants where aggregate and cement are mixed before added...