{"product_id":"crystalline-purite-brush-on-glaze-cone-4-9-550ml","title":"Crystalline Purite Brush on Glaze (Cone 4-9) 550ml","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eCrystalline Purite Brush on Glaze (Cone 4-9) 550ml\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eCrystal glazes are crystalline glazes in which real unique crystals are created in the glaze surface during the firing process. No two pieces are ever exactly the same, that’s what makes Crystal glaze so special. Create crystal formations on a standard 1220 °C \/ cone 6 firing with just a 20 minute soak. Further crystal growth can be achieved by more complex firing schedules.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCone 7 Firing Schedule\u003c\/h3\u003e\n\u003cp\u003eFire at a rate of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e175°C per hour to 1210°C\u003c\/strong\u003e, then\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehold for 10 minutes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAfter the peak temperature, follow this\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecooling cycle\u003c\/strong\u003e:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eCool at\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efull power down to 1023°C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehold for 45 minutes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinue\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efull power down to 987°C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehold for 10 minutes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeat again at\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efull power up to 1023°C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehold for 45 minutes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFinally,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecool at full power down to 987°C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehold for 10 minutes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIf the controller does not allow for programmed cooling stages, use the simplified schedule instead:\u003cbr\u003e\u003cstrong\u003eFire at 175°C per hour to 1220°C and hold for 20 minutes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe formation of larger crystals occurs during the cooling and soaking stages of the cycle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBasic application.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStir well. Brush, sponge or stamp. Use as top coat layer. Apply 2-3 layers depending on the desired result. Allow each coat to dry before applying the next coat. Can run, so reducing number of coats at the base of your piece may be advised. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTips.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA beautiful glassy effect can be achieved with a top-coat of Vibes.\u003c\/p\u003e\n\u003cp\u003eA glaze catcher is recommended for a full crystalline firing schedule.\u003c\/p\u003e\n\u003cp\u003eTry out the glaze in your kiln on your clay body. (The choice of clay body, thickness of glaze application, combination of glazes, the firing process and temperature will affect the fired results.)\u003c\/p\u003e","brand":"Ulster Ceramics Pottery Supplies","offers":[{"title":"Default Title","offer_id":57312221593973,"sku":"SL651","price":23.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6202\/0899\/files\/purite.webp?v=1782224359","url":"https:\/\/www.ulsterceramicspotterysupplies.co.uk\/products\/crystalline-purite-brush-on-glaze-cone-4-9-550ml","provider":"Ulster Ceramics Pottery Supplies","version":"1.0","type":"link"}