Bostik N40 Primer

Bostik N40 Primer is a fast-drying, clear, and non-staining solvent-based primer/cleaner, specially designed to enhance the adhesion of polyurethane sealants and waterproof membrane systems on non-porous substrates.
Vendor: Bostik
SKU: PRIMEN40/1
Availability: In Stock
$40.87
$40.87

Physical Properties

Colour: Clear
Viscosity: Thin, colourless liquid
Coverage: Approx. 50 lineal metres of joint per litre
Drying time: 5 to 10 minutes
Flashpoint: 12°c
Specific gravity: 0.8 g/ml
Application temperature: 5°c to 35°c
Composition: Moisture-sensitive solvent-based primer

Shipping & Delivery

$15.95 shipping on all orders nationwide for most products

Bostik N40 Primer

Vendor: Bostik

Bostik N40 Primer

$40.87

Vendor: Bostik

Bostik N40 Primer

$40.87

Bostik N40 Primer is a clear, solvent-based primer/cleaner specifically designed to enhance the adhesion of polyurethane sealants, acrylic sealants, and waterproof membrane systems to non-porous substrates. Its fast-drying formula and ease of use make it a valuable tool for construction professionals and those working with metals and rigid plastics.

Key Features

  • Clear Appearance: Does not stain or discolour surfaces.
  • Fast Drying: Ready for sealant or membrane application in 5-10 minutes.
  • High Bond Strength: Promotes optimal adhesion of sealants and membranes.
  • One-Part: No mixing required, ready to use.

Uses

  • Priming non-porous substrates like rigid plastics (ABS, uPVC) and metals (brass, bronze, copper, aluminium, steel, etc.) before applying sealants or membranes.
  • Specifically recommended for use with Bostik Seal 'N' Flex 1, Seal 'N' Flex FC, Construction PU, Fireban One, and Matrix FC polyurethane sealants.
  • Suitable for various applications, including construction, automotive, and industrial projects.

Benefits

  • Improves adhesion of sealants and membranes on non-porous surfaces.
  • Prevents sealant failure and ensures a long-lasting bond.
  • Easy and quick to apply using the two-cloth method.
  • Clear formula ensures no staining or discolouration.

Application Guide

  1. Ensure the substrate is clean, dry, and free from contaminants.
  2. Dampen a clean cloth with Bostik N40 Primer and wipe the surface.
  3. Immediately use a second clean cloth to remove any primer residue.
  4. Allow the surface to dry for at least 5 minutes before applying sealant/adhesive or membrane.
  5. Apply sealant/adhesive or membrane within 4 hours of priming.

Limitations

  • Use only on recommended non-porous substrates (see primer selection table).
  • Do not dilute or mix with other solvents or primers.
  • Ensure the surface is free of water and condensation before applying sealant/adhesive or membrane.
  • Re-prime if the surface is exposed to rain, dust, or other contaminants after application.

Additional Information

Colour Clear
Viscosity Thin, colourless liquid
Coverage Approx. 50 lineal metres of joint per litre
Drying Time 5 to 10 minutes
Flashpoint 12°C
Specific Gravity 0.8 g/ml
Application Temperature 5°C to 35°C
Composition Moisture-sensitive solvent-based primer

Product Codes

  • 250ml Can: 30608476 (24 per carton)
  • 1L Can: 30608603 (12 per carton)

Uses

  • Priming non-porous substrates like rigid plastics (ABS, uPVC) and metals (brass, bronze, copper, aluminium, steel, etc.) before applying sealants or membranes.
  • Specifically recommended for use with Bostik Seal 'N' Flex 1, Seal 'N' Flex FC, Construction PU, Fireban One, and Matrix FC polyurethane sealants.
  • Suitable for various applications, including construction, automotive, and industrial projects.

Benefits

  • Improves adhesion of sealants and membranes on non-porous surfaces.
  • Prevents sealant failure and ensures a long-lasting bond.
  • Easy and quick to apply using the two-cloth method.
  • Clear formula ensures no staining or discolouration.

Application Guide

  1. Ensure the substrate is clean, dry, and free from contaminants.
  2. Dampen a clean cloth with Bostik N40 Primer and wipe the surface.
  3. Immediately use a second clean cloth to remove any primer residue.
  4. Allow the surface to dry for at least 5 minutes before applying sealant/adhesive or membrane.
  5. Apply sealant/adhesive or membrane within 4 hours of priming.

Limitations

  • Use only on recommended non-porous substrates (see primer selection table).
  • Do not dilute or mix with other solvents or primers.
  • Ensure the surface is free of water and condensation before applying sealant/adhesive or membrane.
  • Re-prime if the surface is exposed to rain, dust, or other contaminants after application.

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