{"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","url":"https:\/\/goindustrial.com\/fr\/products\/number-1-molding-plaster","provider":"Go Industrial","version":"1.0","type":"link"}