{"product_id":"sio2-praf","title":"Clay SiO2 PRAF White 40% 0-0.5mm fireclay - 12.5 kg","description":"\u003ch2\u003e Spanish clay SIO2 PRAF BLANCA White - 12.5 kg\u003c\/h2\u003e\n\n\n\u003cp\u003e A white, high-melting ceramic mass with 40% fine-grained fireclay (0-0.5 mm). Designed for artistic ceramics, it is ideal for sculpture, murals, and reduction firing. The high fireclay content gives it a beautifully textured surface and excellent drying and firing properties.\u003c\/p\u003e\n\n\n \u003cp\u003eAfter firing, it acquires a unique ivory color, which provides an ideal base for glazes and coloring oxides, which develop bright and intense tones. Also known as \"Raphael\" clay, it is highly popular for its excellent reaction to Raku.\u003c\/p\u003e\n\n\n\u003cp\u003e\u003c\/p\u003e\n\n\n\u003cul\u003e\n\n\u003cli\u003e Firing temperature: 1240-1300ºC\u003c\/li\u003e\n\n\u003cli\u003e Bisque firing: 1000ºC\u003c\/li\u003e\n\n\u003cli\u003e Water content: 17%\u003c\/li\u003e\n\n\u003cli\u003e Plasticity (IP Atterberg): 16\u003c\/li\u003e\n\n\u003cli\u003e Carbonate content (CaCO3): 0%.\u003c\/li\u003e\n\n\u003cli\u003e Shrinkage during drying: 5.4%\u003c\/li\u003e\n\n\u003cli\u003e Shrinkage during firing (1300ºC): 4.6%\u003c\/li\u003e\n\n\u003cli\u003e Porosity (water absorption at 1300ºC): 4.1%\u003c\/li\u003e\n\n\u003cli\u003e Dry bending strength: 2.4 N\/mm2\u003c\/li\u003e\n\n\u003cli\u003e Bending strength in the fired state (1300ºC): 26.2 N\/mm2\u003c\/li\u003e\n\n\u003cli\u003e Thermal expansion coefficient (25-500ºC): 55.9x10^-7ºC^-1\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003cp\u003e\u003c\/p\u003e","brand":"Sio-2","offers":[{"title":"Default Title","offer_id":52522703192403,"sku":"SiO2_PRAF","price":15.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/1409\/1859\/files\/praf_big.jpg?v=1764794790","url":"https:\/\/ceramiq.pro\/en-de\/products\/sio2-praf","provider":"Ceramiq.pro","version":"1.0","type":"link"}