10 Year Limited Warranty. Authentic batch and serial numbers on underside of every CaesarStone® slab Scratch and stain resistant Non porous - never requires sealing Heat resistant Superior strength and flexibility Mould and mildew resistant CaesarStone® is manufactured using approximately 94% natural quartz, organic pigments and advanced polymers Resistant to most household chemicals, acids and oils Technical Information CaesarStone® products and plant procedures are in accordance with strict ISO 9002 guidelines. CaesarStone® has been independently tested by the CSIRO and scored the highest possible results for stain resistance and resistance to dry heat and thermal shock. Nominal slab size: 3060 mm x 1440 mm x 20 mm and 30 mm thickness. Weight: 20 mm; 50 Kg/m2. 30 mm; 75 Kg/m2