- Dorval, Quebec, Canada
- Jun 21st
Sonolastic NP 1 300 ml (10.1 fl oz) cartridge One-component, elastomeric, gun-grade polyurethane sealant Now known as: MasterSeal NP 1 How does MasterSeal NP 1 work? MasterSeal NP 1 is a one-component, high performance, non-priming, gun-grade, elastomeric polyurethane sealant. It requires no mixing and typically requires no priming to bond to many materials, including concrete and masonry.