... Crack and Shrinkage easy to use PRODUCT DESCRIPTIONGNS Multi-use PU Foam A11 is a one-component, ... ready to use multi-purpose polyurethane foam. It is fitted with a ... such as UPVC, masonry, brick, block work, glass, steel, aluminum, timber and other substrates (except PP, PE and ... 20 minutes. SAFETY RECOMMENDATION:1. Do not breathe spray/vapor; In case of eye contact, flush with ...