Bostik 30621748 Block B902 Terra Express 15kg

Bostik BLOCK C902 (previously Sovereign Heydi Powder X) is a rapid-setting plugging compound with almost instant curing. It is used to stop water ingress through concrete and masonry, prior to tanking with the Sovereign Heydi K11 Tanking System. Bostik BLOCK C902 can be applied as a dry powder or mixed with water into a wet paste and used as a plug. It sets in seconds of contact with water, forming a waterproof plug preventing water ingress. Protects against hydrostatic water pressure Will not de-bond from the surface due to water pressure Apply whilst water is running