{"product_id":"siniat-prestia-alpha-casting-plaster","title":"Siniat Prestia SH Alpha Casting Plaster","description":"\u003cp\u003eTop class casting plaster, which is very fine, hard and strong. Used for the casting of finished pieces where a hard durable surface is important. Setting time 9-20 minutes. Plaster to water ratio 2.8kg\/litre. Compressive strength (dry) 7054 psi. This plaster is also used for castings made with Plaster Polymer for extremely hard and high weather resistant applications.\u003c\/p\u003e\u003cp\u003ePrestia Basic SH Alpha is a high-quality hard plaster similar to Herculite 2 and Crystacal R, although not as hard as Crystacal. The expansion is much less, and it is slower setting. It is usually used for architectural mouldings as well as being used in modelling applications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWater\/Plaster Ratio: 35 to 40\/100\u003c\/li\u003e\n\u003cli\u003eWorking Time: 10 Min.\u003c\/li\u003e\n\u003cli\u003eDemould Time: 20-40 mins.\u003c\/li\u003e\n\u003cli\u003eExpansion: 0.06%\u003c\/li\u003e\n\u003cli\u003eCompressive Strength: 45 Mpa\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SINIAT","offers":[{"title":"5","offer_id":49263804088602,"sku":"400-550","price":8.57,"currency_code":"GBP","in_stock":true},{"title":"25","offer_id":49263804121370,"sku":"400-555","price":42.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0865\/4399\/1066\/files\/Siniat-Prestia-Alpha-Casting-Plaster.jpg?v=1726230375","url":"https:\/\/potterycrafts.live\/products\/siniat-prestia-alpha-casting-plaster","provider":"Potterycrafts","version":"1.0","type":"link"}