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Bostik N49 Primer (P & NP for PU) Sealants System 1L

by Bostik
$51.31 inc.GST
SKU BOS30608602

Porous Substrate Primer for Polyurethane Sealants System

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

Where to Use

  • Residential
  • Commercial
  • Industrial
  • Marine
  • Exterior


  • Porous 
  • Blockwork
  • Lighweight blocks


  • Concrete
  • Brick
  • Render
  • Unglazed ceramic tiles
  • Brick
  • Blockwork
  • Lightweight blocks
Other Features:
  • Promotes high bond strength of polyurethane sealants on porous substrates
  • Clear appearance
  • One part – no mixing required
VOC Data Sheet
Technical Data Sheet


  • Item: Bostik N49 Primer (P & NP for Polyurethane)
  • Quantity: 1L Cans
  • Size: 1L Can
  • Other: One pallet =  204 x 1L Cans