A11 Multi-Use PU Foam 1,German Quality 2,Stronger After ... 3,No Crack and Shrinkage 4,Wooden door suitable GNS A11 Multi-use PU Foam German QualityStronger After CureNo Crack and ... Gravity (Kg/M3)17~22PRODUCT DESCRIPTIONGNS Multi-use PU Foam A11 is a one-component, ready to use multi-purpose polyurethane ... light etc.); Keep out of the reach of children. GNS A11 Multi-use PU Foam