This is a liquid catalyst for use with all Liquid Rubber products, just paint Liquid Rubber onto the desired surface and spray Part_B to give you a shorter dying time and increased product strength. The Catalyst also helps in that it seals off the product within seconds to give it protection while it drys from underneath. This is really helpful in situations where you need the rubber to set quickly (before rain or applying multiple layers ect). The Catalyst can be used in conjuntion with the rubber in a veriety of different situations, everthing from patching water tanks or garden beds to sealing gutteres and roofs.

1L Liquid Rubber Catalyst (or Part B) can be used on all products