N49 Primer – POROUS SUBSTRATE PRIMER FOR POLYURETHANE SEALANT SYSTEMS
Bostik N49 Primer is a primer designed for use with the Bostik polyurethane sealant range to ensure adhesion to porous substrates, particularly with water immersed applications. Bostik polyurethane sealants requiring the application of Bostik N49 Primer on porous substrates only are:
- Bostik Seal ‘N’ Flex® 1
- Bostik Seal ‘N’ Flex® FC
- Bostik Construction PU
- Bostik Fireban® One
Bostik N49 Primer can be used on porous substrates:
- Concrete
- Render
- Brick
- Blockwork
- Lightweight blocks
- Unglazed ceramic tiles
- Clear appearance
- Promotes high bond strength of polyurethane sealants on porous substrates
- One part – no mixing required
- Colour – Clear
- Viscosity – Thin, Colourless liquid\
- Coverage –50 lineal meters of joint per liters
- Drying time – 15 minitues
- Composition – Moisture sensitive
- Packages – 1 L and 4 L can