Introducing Mapesil Ac 119 London Grey, the acetic silicone sealant you can rely on for the toughest of jobs! This highly elastic and durable 100% silicone formula offers outstanding resistance to mould, solvents, and extreme temperatures, thanks to its high thermal and chemical resistance. Designed with cutting-edge BioBlock technology, it accommodates movements up to 25%, making it the go-to choice for a strong and long-lasting seal, in a dark grey colour.