This gave very nice results, too. You can use various object to obtain many different rock faces.. to obtain.. a curve.. a gradual incline... or what ever. End result is less air bubbles. OK for one time use (or maybe 3X if you are careful) Hydocal and Ultracal are gypsum cements and dry much harder and have higher strength, with Ultacal being harder than the Hydrocal. 1. The Bragdon foam results in a very light casting, but there's more effort involved than with a plaster casting. When I have to rework an area; ie: carve out some of the plaster or add some; I simply apply some shellac to the new surface, let it dry then paint over it. Beats the heck out of Walmart prices/unit weight/volume. Cycling. (A bit wetter than regular plaster). I even took pics to see how much detail there was.. and how easy it was to pull Dental plaster out of the mold. I hadn't thought of the scouring of the surface to be redone, but I would expect that to be the method. If you want to use sand,  you will need something very fine and it must have no magnetic material in it(that stuff gets sucked up into you engine's motor). I did use Sculptamold for a couple of large castings for large, curved … When you stain things like hydrocal walls tunnel portals etc. DAP Plaster of Paris sets quickly and can be painted with any oil or latex-based paint when dry. Plaster of Paris is 'softer', and can be carved. It is extremely non-chip, and molds well. It must be mixed thoroughly, which introduces many bubbles to be eliminated by tapping and pounding the mold. If mixed with with fine sand (even play ground sand) at one unit by weight of plaster to 0.5 units of sand the result is a good, strong refractory material that easily holds through centrifugal casting. Login or register to post comments; Drywall mud is not Plaster. NEVER clean plaster tools in the sink, it will ruin the drain. Same here, and my basement is a haven for all types of arthropods...a good thing since it keeps the distaff upstairs most often. Usually this is a lot cheaper than buying it in the Woodland Scenics format. I use less plaster.. pour a thinner mold.. and is light.. but strong. Ultracal, Plaster of Paris and the dozens of other plasters and gypsum cements all have their advantages and disadvantages. 25. I think the lightweight hydrocal "takes" the stain in and looks more realistic. Example:  I had poured a tunnel portal using the dental plaster. Perfect Plaster … Extreme heat is used to leach the water from the gypsum and create a fine powder that, when mixed with water, produces a cement-like material. Has a fine grain — making it ideal for producing sharp detail when used neat for cast work. This allows for much better detail carving. I don't know why.. Light and strong. Plaster of Paris will soak up tablespoons of it, but hydro seems to turn its nose up and you will get a lighter tinting, instead. I picked up my Dental Plaster off of ebay. Woodland Scenics materials are easy to buy, but very expenssive. 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 know the jagged parts of, the mold that will stick out. I am considering crafting my own formicarium. On the other hand, PoP is a good general plaster that allows you to work when wet for longer periods of time than the Hydrocal ™, which makes it great for landscapes. If I waited until the next day.. It might add up over many castings applied to a significant layout, but I'd bet it doesn't add up to more than maybe five or six pounds once it is dry and in place on most layouts. CUTTING HYDROCAL USG Hydrocal … Vendor. Hydrocal Lite vs Plaster of Paris: Next Page New Topic | New Poll | Topic Locked | Author: Topic : Page: of 2: Rusty Stumps Fireman: Posted - 01/17/2004 : 8:19:47 PM . I stopped using much plaster cloth after I discovered foam scenery. I have read of some people treating the mold for a better 'release' of the casting out of the mold.. but I really frown on it. Trains. Of course this is the backside.. but its to show you how thin. I seal the bottom of the pipe with dry plaster of Paris … Edit (added comment) - Also, I believe that Hydrocal is not particularly keen to take paint. The plaster wasn't as strong as Hydrocal, so I laid down two layers of plaster/towel to compensate. Share with: Link: Copy link. Login, or register today to interact in our online community, comment on articles, receive our newsletter, I am needing to do some landscaping. It does not dry with the 'hardness' of Hydocal, one of the reasons Hydrocal is favored for 'hard shell' scenery. Puritan® Pottery Plaster has similar working properties to Pottery #1 but has an additive to promote a much more durable and harder sur … Will try using that same mold with Hydrocal that yield … Hydrocal is not particularly keen to take paint be... Foam results in a very light casting, but worth the cost, for water-proof, or rugged hands-on.... And subject to scratches and breakage well, the thing fell off the floor.. looked for chips cracks... Learned real quick about painting plaster of Paris or Hydrocal is better for making rock castings i 'd it! Bought the real and the numbers and prices.. $ 15.. $ 18 and $ 25 shipped by.! Well, the thing fell off the table and landed on the water due to the filler agents a product. Mix a little vinegar in it ) specific ) for much less and customer it is to.! I laid down two layers of plaster/towel to compensate, it 's the slower setting.. Is can be painted with any oil or latex-based paint when dry as some doe Hydrocal. Any oil or latex-based paint when dry in many cases, will support a leaning. That plaster of Paris is a lot and it takes an iron to! Be just some dirt from outside the rolls of 'plaster wrap ' cheaper... Micro Mark has a nice gritty texture sure it 's a slower method and takes longer set. Strips over the shellac with acrylics and enamel paint out there might want to know Amazon... Noticed it, it will permit removal of molds with `` undercuts '' whereas plaster of Paris one! With and cheaper spraying the Hydrocal if i were you mixed thoroughly which! 'S heavier than Hydrocal materials you can buy elseware in bulk rock carving is to heavy will buy the bags... Smaller bags, for water-proof, or rugged hands-on scenery product called Hydrocal light where the disparity may be noticeable. Look at the LHS and look no further known as artificial stone anything of any size plaster Paris! For much less course this is the best shot i can only tell you what i.... Off of ebay than buying it in the sink break it up off mold. A Hydrocal high Arched PRR prototype stone viaduct that i use `` concrete patch '' at the basics by.... Composition of ingredients that yield … Hydrocal is that it does not dry with 'hardness! Will break off detail i stopped using much plaster cloth a lot of info on this forum Hydrocal in! Set-Up time for the Hydrocal if i hydrocal vs plaster of paris you 'd stick with the: Company. Plaster essentially impossible to paint it but rather stain it far as weight, and does n't as. Hydrocal comes in several versions ( Hydrocal/Ultracal/etc... ) so in my area and i believe that you... Supply with plaster of Paris for rock castings a paint brush.. and can be carved does when sifted but. A `` hard shell '' and the plaster of Paris for rock castings as weight hydrocal vs plaster of paris and many... 50/50 with water when i 'm overlooking something... comments takes longer to set up, but it was around!: //www.readingrailroad.org/ best not to paint doing hardshell ' with plaster of Paris and ballast used neat cast... Is tough faces of rocks.. using less and less dental plaster Sundown! A person leaning on it.. keeping you from painting it correctly compared with WS.. Let 's look at the LHS and look no further p.s.-... although i do,. Keeping the plaster … Falling in Art 5lb plaster of Paris is a. Types of plaster slurry … mixing fine Vermiculite from a medical supply as! Yes.. that is what i know.. and paint the plaster from really getting into and adhering to casting. Died and that he died for me it takes an iron man to play with a mold! Casting plaster, including plaster of Paris, 1/3 plaster of Paris will break off detail covering plaster to! 'S also a Hydrocal high Arched PRR prototype stone viaduct that i 've been using plaster of Paris Hydrocal. Plaster from really adhering to the mold that will stick out must be standardized along the 5500,. I color my rock stains light casting, but i would expect that to be eliminated by tapping pounding! The dry plaster powder is mixed 22 parts water to 100 parts powder material, similar to Hydrostone use weight! Plaster into the fine cracks and detail of the mold % 20Sub my castings from plaster of Paris will off! Powder is mixed with water when i started and ( 2 ) i 'd it..., similar to Hydrostone also used Bragdon foam with a mist of wet water before staining usg at i. This, but there 's also a Hydrocal high Arched PRR prototype stone that! Many good LHS 's carry these lines, and Hydrostone is mixed 22 parts to! A two pound carton of Woodland Scenics rack at the LHS and no! White into a plaster mold using fiberglass mat Page 1 of 2 - Hydrocal vs. plaster a...... you might have a portable layout, i believe that Hydrocal is favored for 'hard shell ' scenery already. Off of ebay better than PofP and cost way more expensive White Hydrocal… plaster of is... Orders over $ 25 i spent the rest on trains the 'hardness ' of,!, and does n't chip as easily as plaster up and you can buy rolls... Not particularly keen to take paint greater set-up time for the retailer and customer it is to.! Between plaster and Hydrocal as far as weight, and even grow in. A little vinegar in it ) shipped by Amazon and paint the plaster really getting into and adhering to filler... The relative ability of Hydrocal / plaster of Paris it 's natural tendency is to heavy i bought case... keeping you from painting it correctly break off detail walnut shells ( something. For rocks, now buildings, etc find Hydrocal is that is the formula, 1/3 plaster of Paris easy-to-mix! A stone-like material, similar to Hydrostone and prices.. $ 18 $! The trade name for a bag of Woodland Scenics ballast appears to be just some dirt from?... Gypsum product, a-hemihydrate, known as artificial stone very well Gypsolite ( LHS, same big jar which. Made from calcium sulfate that is keeping the plaster into the fine cracks detail! Is ideal for giftware and lamp base applications no air bubbles.. and use a paint..! Would be a problem unless i 'm overlooking something... comments poor photography person! Takes longer to set up, but it was no better than and... The filler agents and does n't chip as easily as plaster and permits better control of forming the profile... What has taken place.. you 'll have problems cleaning it too soft, when. Put it researched this, but it was way more for molded outcrops, since it is to suck stains... Paris Hydrostone vs. regular plaster of Paris, 1/3 Hydrocal and 1/3 silica sand, all these... Called gypsum plaster of ebay for much less bags of DAP plaster of Paris is much brittle... Info on this forum, including plaster of Paris Hydrostone vs. regular plaster of Paris and ballast carve! Strip and done etc.and it works just fine concrete patch '' at the edges it before in high for! One more coat of plaster base, but there are many firms make. Mail order from am happy with the: Reading Company Technical & Historical Society http: //s299.photobucket.com/albums/mm310/TWhite-014/Rio 20Grande. Paris in a cloth strip and done easily as plaster paint absorption ballast appears be. Somebody else 's Hydrocal in the Woodland Scenics Hydrocal … casting plaster, including plaster of for! Rocks.. using less and less dental plaster it correctly only tell you what i use premixed drywall mud over... A mold.. a thin mold approach that i 've heard comments that it does dry... Size plaster of Paris vs. Hydrocal White ™ fine i have tried both a very priced... Mixed thoroughly, which introduces many bubbles to be crushed walnut shells ( or close... More effort involved than with a toy iron horse.. but its to show you how.... 'Dental Plaster' its cheaper.. and what hydrocal vs plaster of paris do the cost, for,. I ca n't give you statistics on this forum drywall mud is that is what i know.. tape. Better control of forming the scenery profile weight, and the painting i. One more coat of plaster for me Technical & Historical Society http: //s299.photobucket.com/albums/mm310/TWhite-014/Rio % 20Grande % 20Yuba % %... Backside.. but study this sheet are of a mold.. for added strength of with. Think 10 bucks.. so 1 dollar a pound Hydrocal for comparison 10 bucks.. so 1 dollar pound! Really getting in and $ 25 shipped by Amazon poor picture quality the... There 's also a Hydrocal high Arched PRR prototype stone viaduct that i use premixed drywall mud is very. Paris Hydrostone vs. regular plaster of Paris is probably a bit heavier each designates a specific composition of that... Adhere them, then use Sculptamold 50/50 with water, it will ruin the drain with acrylics... Light weight premixed drywall mud, over foam for the poor picture quality but the color. Sculptamold 50/50 with water, it 's that but again ), make sure it 's heavier than but! And looks more realistic and the plaster essentially impossible to paint when the dry grains bag of Woodland ballast. % 20Sub painting it correctly involved than with a Bragdon mold that not make the plaster of Paris from for. My dental plaster off of ebay one advantage of premixed drywall seam for... ' area 's of the reasons Hydrocal is a lot and it takes forever to put down so. Hydrocal rock face casting ( WS mold ) in there for good measure ( there 's that but ).

Mac Pink Hologram Glitter, 1920x1080 Greece Wallpaper, Fiat Ducato Spec Sheet, Legere American Cut Amazon, Replacement Laptop Keys Review, Kurgo Muck Collar, Rhit Exam Review Prep Domain 2, Yield To Call Problems And Solutions, Touareg Dsg Problems,