KERAFIX® 2000 Building material classifcation B2 (normal combustibility) in accordance with DIN 4102-1 General test certifcate P-3074/3439-MPA BS Product Description KERAFIX® 2000 is based on a chemical mix of calcium magnesium silicate; it ensures excellent thermal and physical stability up to 1200 °C. Special feature: KERAFIX® 2000 is a bio-soluble high temperature glazing tape.