{"title":"USG Plaster \u0026 Gypsum Cement","description":"\u003cp\u003eShop professional USG plaster and gypsum cement for casting, sculpture, pottery, ceramic mold making, precision tooling, prototyping and special effects. Choosing the right gypsum starts with the application: use No. 1 Moulding Plaster for economical general mold work, No. 1 Pottery Plaster for absorbent ceramic slip-casting molds, Hydrocal White for strong general-purpose casting, Hydro-Stone for exceptionally hard finished art and statuary castings, and Ultracal 30 for low-expansion precision molds and tooling.\u003c\/p\u003e\u003ch3\u003eChoose the Right USG Plaster\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003ePositioning\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSG No. 1 Moulding Plaster\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGeneral mold making, waste molds, temporary patterns, sculpting and economical casting.\u003c\/td\u003e\n\u003ctd\u003eGeneral-purpose plaster \/ plaster of Paris.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSG No. 1 Pottery Plaster\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePottery, ceramic slip-casting molds, jiggering and plaster studio molds.\u003c\/td\u003e\n\u003ctd\u003eAbsorbent ceramic mold plaster.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSG Hydrocal White\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModels, figurines, decorative pieces, solid and hollow casting and detailed artistic work.\u003c\/td\u003e\n\u003ctd\u003eStrong general-purpose casting gypsum.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSG Hydro-Stone\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArt, statuary, architectural details and finished castings requiring high strength and hard surfaces.\u003c\/td\u003e\n\u003ctd\u003ePremium high-strength finished casting gypsum.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSG Ultracal 30\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrecision molds, case molds, tooling, patterns, prototyping, SFX and resin tooling.\u003c\/td\u003e\n\u003ctd\u003eLow-expansion precision tooling gypsum.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCasting Plaster for Art, Sculpture \u0026amp; Decorative Casting\u003c\/h3\u003e\u003cp\u003eWhen a gypsum casting needs to hold fine detail, accept paint cleanly and stand up to handling, ordinary moulding plaster is often not enough. \u003ca href=\"\/fr\/products\/us-gypsum-hydrocal-white\"\u003eUSG Hydrocal White\u003c\/a\u003e is the versatile all-purpose casting gypsum for solid and hollow casting, figurines, models and decorative pieces — offering substantially greater strength than traditional plaster of Paris while remaining easy to work with. For finished castings that demand the hardest, most durable surface — art, statuary, architectural details and sculpture casting — \u003ca href=\"\/fr\/products\/hydrostone\"\u003eUSG Hydro-Stone\u003c\/a\u003e is the premium choice. Its exceptional hardness and fine-detail reproduction make it the preferred statuary plaster and art casting gypsum for professional makers and studios.\u003c\/p\u003e\u003ch3\u003ePottery \u0026amp; Ceramic Mold Plaster\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/fr\/products\/us-gypsum-1-pottery-plaster\"\u003eUSG No. 1 Pottery Plaster\u003c\/a\u003e is engineered specifically for absorbent ceramic working molds rather than as a finished casting material. Potters and ceramic studios rely on it for slip casting, jiggering, production molds and plaster bats, where controlled water absorption and long mold life are the priorities. It is the industry standard for sanitaryware and dinnerware casting and the correct choice for pottery mold making. For finished decorative gypsum objects, compare Hydrocal White or Hydro-Stone instead.\u003c\/p\u003e\u003ch3\u003ePrecision Mold Making, SFX \u0026amp; Tooling\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/fr\/products\/us-gypsum-ultracal-30\"\u003eUSG Ultracal 30\u003c\/a\u003e is the professional tooling gypsum for applications where dimensional accuracy is the primary requirement. Its low expansion and exceptional surface hardness make it the right mould making plaster for precision molds, case molds, patterns, prototypes and demanding SFX mold applications. It is also widely used for splash-casting molds and models for phenolic, polyester and epoxy resins. When the mold or tool is the critical component — not the finished casting — Ultracal 30 Canada is the standard choice for fabricators, SFX technicians and tooling professionals.\u003c\/p\u003e\u003ch3\u003eGeneral Mold Making \u0026amp; Plaster of Paris\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/fr\/products\/number-1-molding-plaster\"\u003eUSG No. 1 Moulding Plaster\u003c\/a\u003e is the economical traditional choice for general mold making, waste molds, temporary patterns and everyday plaster work. Often described as a professional plaster of Paris, its fine grain reproduces detail well in applications where extreme hardness or dimensional precision is not required. It is a practical molding plaster for sculptors, educators, prop makers and general casting work. When the project calls for greater strength or a harder finished surface, step up to Hydrocal White or Hydro-Stone.\u003c\/p\u003e","products":[{"product_id":"hydrostone","title":"USG Hydro-Stone Gypsum Cement - 50 lb","description":"\u003cp\u003eUSG Hydro-Stone is a premium high-strength gypsum cement for finished castings that require exceptional hardness, durability and fine-detail reproduction. It is an excellent choice for art, statuary, models, architectural details and other cast gypsum objects where ordinary plaster or \u003ca href=\"\/fr\/products\/us-gypsum-hydrocal-white\"\u003eHydrocal White\u003c\/a\u003e does not provide enough surface hardness. If the main requirement is dimensional accuracy in a mold or tooling system rather than strength of the finished casting, compare \u003ca href=\"\/fr\/products\/us-gypsum-ultracal-30\"\u003eUltracal 30\u003c\/a\u003e. \u003ca href=\"\/fr\/collections\/usg-plaster-gypsum-cement\"\u003eBrowse the full USG Plaster \u0026amp; Gypsum Cement collection.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eExceptionally strong gypsum cement designed for stretch-press dies and producing cope-and-drag equipment. Produces high-quality, indoor novelty and statuary castings that require extremely hard surfaces and superior reproduction of fine detail. Superior expansion vs. Hydrocal® A-11 or B-11 Gypsum Cements. High water absorption resistance.\u003c\/p\u003e\u003cp\u003eMAIN FEATURES\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHydro-Stone® Gypsum Cement is especially suitable where high strength and resistance to water absorption are necessary. It is ideal for applications in both the tooling \u0026amp; prototyping and art \u0026amp; statuary categories.\u003c\/li\u003e\n\u003cli\u003eHydro-Stone® Gypsum Cement — For Tooling \u0026amp; Prototyping: ideal for stretch-press dies where extreme surface hardness is required. Offering greater expansion than Hydrocal® A-11 or B-11 Gypsum Cements, Hydro-Stone® Gypsum Cement features a heavy, syrupy consistency, ideal for pouring into solid models or patterns; adapts to most flexible moulding compounds due to its high absorption resistance; sets in 17-20 minutes after machine mixing; requires 32 parts water by weight per 100 parts plaster.\u003c\/li\u003e\n\u003cli\u003eHydro-Stone® Gypsum Cement — For Art \u0026amp; Statuary: one of the hardest and strongest Hydrocal® products, used in the fabrication of high-quality art novelty and statuary castings. Offers excellent paintability, can duplicate extremely fine details, works well in plaster and most flexible moulding compounds, is self-leveling with low viscosity, and provides fast set time for quick mold turns.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNOTE — For best storage results, keep indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high.\u003c\/p\u003e","brand":"USG Corp","offers":[{"title":"Default Title","offer_id":46331326890284,"sku":"115183","price":55.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/hydrostone_504x504_151c1fe1-a1f9-4bb2-82e0-3d26d31c1147.webp?v=1772149504"},{"product_id":"us-gypsum-hydrocal-white","title":"USG Hydrocal White Gypsum Cement - 50 lb","description":"\u003cp\u003eUSG Hydrocal White is the versatile step up from ordinary moulding plaster when a finished gypsum casting needs greater strength, cleaner detail and a bright white surface. It is well suited to solid and hollow casting, models, figurines, decorative pieces and detailed work from flexible molds. Choose Hydrocal White for a strong all-purpose casting gypsum; choose \u003ca href=\"\/fr\/products\/hydrostone\"\u003eHydro-Stone\u003c\/a\u003e when maximum hardness and finished-casting strength are the priority. \u003ca href=\"\/fr\/collections\/usg-plaster-gypsum-cement\"\u003eBrowse the full USG Plaster \u0026amp; Gypsum Cement collection.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eMulti-purpose gypsum cement ideal for both solid and hollow casting of lamp bases and figurines. High green strength minimizes breakage during removal from the most intricate latex molds.\u003c\/p\u003e\u003cp\u003eOffering twice the compressive strength of plaster, Hydrocal® White Gypsum Cement is especially suitable in thin, delicate sections where high green strength is required. Multi-purpose Hydrocal® White Gypsum Cement:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIs ideal for both solid and hollow casting of lamp bases, figurines, moldings and general castings\u003c\/li\u003e\n\u003cli\u003eOffers long workability; setting expansion twice that of molding plaster and pottery plaster\u003c\/li\u003e\n\u003cli\u003eHas a great value to performance ratio\u003c\/li\u003e\n\u003cli\u003eAchieves a stark, white color, making it ideal for accepting colorants\u003c\/li\u003e\n\u003cli\u003eSets 25-35 minutes after machine mixing\u003c\/li\u003e\n\u003cli\u003eRequires 45 parts water by weight per 100 parts plaster.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNOTE — For best storage results, keep indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high.\u003c\/p\u003e","brand":"USG Corp","offers":[{"title":"Default Title","offer_id":46680804720940,"sku":"114524","price":70.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/hydrocal-white_504x504_1101c0a1-b1d8-45ea-b1b1-dccb78d26956.webp?v=1772149534"},{"product_id":"us-gypsum-1-pottery-plaster","title":"USG No. 1 Pottery Plaster - 50 lb","description":"\u003cp\u003eUSG No. 1 Pottery Plaster is engineered for absorbent ceramic working molds rather than high-strength finished gypsum castings. It is the appropriate choice for pottery and ceramic slip casting, jiggering, production molds, plaster bats and similar studio applications where controlled absorption and mold life matter. For finished decorative gypsum objects, compare \u003ca href=\"\/fr\/products\/us-gypsum-hydrocal-white\"\u003eHydrocal White\u003c\/a\u003e or \u003ca href=\"\/fr\/products\/hydrostone\"\u003eHydro-Stone\u003c\/a\u003e instead. \u003ca href=\"\/fr\/collections\/usg-plaster-gypsum-cement\"\u003eBrowse the full USG Plaster \u0026amp; Gypsum Cement collection.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e50 LB\u003c\/strong\u003e\u003c\/p\u003e\u003cp class=\"product-overview__features-title\"\u003eMain Features\u003c\/p\u003e\u003cp\u003eNo. 1 Pottery Plaster produces a break-resistant, smooth wearing mold designed for slip casting and jiggering applications. No. 1 Pottery Plaster:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIs formulated to provide stronger, longer-lasting ceramic slip cast molds\u003c\/li\u003e\n\u003cli\u003eIs the industry standard for sanitaryware and dinnerware casting\u003c\/li\u003e\n\u003cli\u003eHas a recommended use consistency by weight of 70 parts water to 100 parts plaster\u003c\/li\u003e\n\u003cli\u003eHas a standard machine mix Vicat set of 14-24 minutes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNOTE — For best results, store indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high.\u003c\/p\u003e","brand":"USG Corp","offers":[{"title":"Default Title","offer_id":46712216387884,"sku":"116593","price":49.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/USGGypsumPotteryPlaster-50lb.png?v=1744758448"},{"product_id":"us-gypsum-ultracal-30","title":"USG Ultracal 30 Gypsum Cement - 50 lb","description":"\u003cp\u003eUSG Ultracal 30 is a professional low-expansion tooling gypsum designed for precision molds, case molds, patterns, prototypes and demanding SFX and resin-tooling applications. Its key advantage is dimensional accuracy and surface hardness rather than simply producing the strongest finished gypsum casting. Choose Ultracal 30 when the mold or tool is the critical component; choose \u003ca href=\"\/fr\/products\/hydrostone\"\u003eHydro-Stone\u003c\/a\u003e when the gypsum casting itself is the finished high-strength object. \u003ca href=\"\/fr\/collections\/usg-plaster-gypsum-cement\"\u003eBrowse the full USG Plaster \u0026amp; Gypsum Cement collection.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eSuperior tooling gypsum cement features exceptional strength and hardness. Low-absorption, designed for use in case molds.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eUltracal® 30 Gypsum Cement is a traditional tooling gypsum cement, specially formulated for close tolerance tooling. Low absorption Ultracal® 30 Gypsum Cement is recommended where extreme accuracy and surface hardness are required (i.e. duplicator molds); provides the lowest expansion of any rapid-setting gypsum cement; is ideal for splash-casting molds and models for phenolic, polyester and epoxy resins; sets 25-35 minutes after machine mixing; requires 38 parts water by weight per 100 parts plaster.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNOTE — For best storage results, keep indoors in a dry, stable environment, away from drafts. Do not stack more than two pallets high.\u003c\/p\u003e","brand":"USG Corp","offers":[{"title":"Default Title","offer_id":46712216420652,"sku":"116592","price":62.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/ultracal-30_504x504_1481703c-856c-4fa7-b113-7f34175f637f.webp?v=1772149405"},{"product_id":"dap-plaster-of-paris-4-4lb","title":"DAP Plaster Of Paris- 4.4Lb","description":"\u003ch3\u003eDAP Plaster of Paris 4.4 lb — Fast-Setting Repair \u0026amp; Craft Plaster\u003c\/h3\u003e\u003cp\u003eReliable, fast-setting plaster for wall and ceiling repairs, mold making, and sculpting — stocked and ready at Go Industrial.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailable Size:\u003c\/strong\u003e 4.4 lb\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWall and ceiling patching and repair\u003c\/li\u003e\n\u003cli\u003eMold making and casting\u003c\/li\u003e\n\u003cli\u003eSculpting and craft projects\u003c\/li\u003e\n\u003cli\u003eFilling holes and surface imperfections\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Properties:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFast-setting formula\u003c\/li\u003e\n\u003cli\u003eDense, resilient finish\u003c\/li\u003e\n\u003cli\u003eResistant to paint absorption — compatible with oil and latex paints\u003c\/li\u003e\n\u003cli\u003eEasy to mix\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eContact your local Go Industrial store | 1-800-667-1757\u003c\/p\u003e","brand":"DAP","offers":[{"title":"Default Title","offer_id":46712229888300,"sku":"116825","price":9.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/plasterofparis_4lbbox_10318_6x6_aae373ad-8a5f-4845-b759-03ad4993e2bc.jpg?v=1739033707"},{"product_id":"dap-plaster-of-paris-25lb","title":"DAP Plaster Of Paris- 25Lb","description":"\u003ch3\u003eDAP Plaster of Paris 25 lb — Bulk Fast-Setting Repair \u0026amp; Craft Plaster\u003c\/h3\u003e\u003cp\u003eHigh-volume, fast-setting plaster for large-scale wall and ceiling repairs, mold making, and sculpting — stocked in bulk and ready at Go Industrial for contractors and trade buyers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailable Size:\u003c\/strong\u003e 25 lb\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLarge-scale wall and ceiling patching and repair\u003c\/li\u003e\n\u003cli\u003eContractor and trade repair projects\u003c\/li\u003e\n\u003cli\u003eMold making and casting\u003c\/li\u003e\n\u003cli\u003eSculpting and craft projects\u003c\/li\u003e\n\u003cli\u003eFilling holes and surface imperfections\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eKey Properties:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFast-setting formula\u003c\/li\u003e\n\u003cli\u003eDense, resilient finish\u003c\/li\u003e\n\u003cli\u003eResistant to paint absorption — compatible with oil and latex paints\u003c\/li\u003e\n\u003cli\u003eEasy to mix\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eContact your local Go Industrial store | 1-800-667-1757\u003c\/p\u003e","brand":"DAP","offers":[{"title":"Default Title","offer_id":46712229953836,"sku":"116826","price":36.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/plaster-of-paris-25lb.png?v=1790878881"},{"product_id":"number-1-molding-plaster","title":"USG No. 1 Moulding Plaster - 50 lb","description":"\u003cp\u003eUSG No. 1 Moulding Plaster is the economical general-purpose choice for mold making, waste molds, temporary patterns, sculpting and traditional plaster casting. Often described as a professional plaster of Paris, its fine grain reproduces detail well when extreme hardness or dimensional performance is not required. Choose this grade for general plaster work; move to \u003ca href=\"\/fr\/products\/us-gypsum-hydrocal-white\"\u003eHydrocal White\u003c\/a\u003e or \u003ca href=\"\/fr\/products\/hydrostone\"\u003eHydro-Stone\u003c\/a\u003e when the finished casting needs substantially greater strength and hardness. \u003ca href=\"\/fr\/collections\/usg-plaster-gypsum-cement\"\u003eBrowse the full USG Plaster \u0026amp; Gypsum Cement collection.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eOften referred to as plaster of Paris or soft plaster, No. 1 Moulding Plaster is used to create waste molds or temporary patterns where surface hardness and strength are not crucial. No. 1 Moulding Plaster:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOffers a controlled set that provides uniform workability\u003c\/li\u003e\n\u003cli\u003eHas a fine grain – making it ideal for producing sharp detail when used neat for cast work\u003c\/li\u003e\n\u003cli\u003eComplies with ASTM C28\u003c\/li\u003e\n\u003cli\u003eSets in 27-37 minutes after mixing\u003c\/li\u003e\n\u003cli\u003eRequires 70 parts water by weight per 100 parts plaster\u003c\/li\u003e\n\u003cli\u003eIs available in 50- and 100-pound bags\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"USG Corp","offers":[{"title":"Default Title","offer_id":49581434863916,"sku":"04302024","price":41.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/files\/gallery-large.876.657_921a6625-7fa1-4d0e-8f0d-2bc74e781717.jpg?v=1756592688"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3426\/4620\/collections\/7nB64.jpg?v=1786144247","url":"https:\/\/goindustrial.com\/fr\/collections\/usg-plaster-gypsum-cement.oembed","provider":"Go Industrial","version":"1.0","type":"link"}