G4 is a moisture cured pond paint that forms a non porous, durable but flexible seal on concrete, brick and porous stone. It will not seal concrete or lightweight block, these will need to be rendered first. We advise that all surfaces below water are rendered.
G4 requires a 2-3 cost application.
Clear G4 = 550g per square metre(for 3 coats)
Quick to use - no primer needed
Can be used in low temperatures
Seals out lime