Application Type Surface Primer, Cleaner 1 Part or 2 Part 1 Part Material Form Liquid Substrate Metals, Rigid plastics, Non-porous substrates, Most metals, Non-porous rigid plastic, Ferrous Manufacturer Bostik Chemistry Solvent-Based Color Colourless Other Resistance Non-staining Elastomeric Elastomeric
Technical Data for Bostik N-40 Primer
Application Temperature (°F) 50 to 95 Dry Time (min) 1.00, Fast, 5.00 to 10 Fast
Other Resistance Non-staining
Specific Gravity 0.8 (g/ml)
Shelf Life Details Store in cool, dry conditions out of direct sunlight below 30°C and away from naked flame or sources of heat. Store according to Dangerous Goods regulations. Shelf life is 12 months if stored in cool, dry conditions in original, unopened containers. Shelf Life Temperature (°F) <86 Shelf Life (mon) 12
Best Practices for Bostik N-40 Primer
Prior to applying Bostik N40 Primer the substrate must be sound, dry, clean and free from any dust, residue or contamination and meet the requirements of substrate preparation detailed in the applicable Sealant or membrane Technical Data Sheet. Bostik primers, sealants or membranes must not be applied to unpredictable absorptive surfaces such as marble, limestone or granite unless a standard of appearance has been agreed upon as a result of testing for stain and/or discoloration.
The primed substrate must be clean and dry, e.g. no free or ponded water or condensation, before the sealant/adhesive or membrane system is applied.
Two Cloth Method: Dampen a clean cloth with Bostik N40 Primer and spread evenly over the non-porous substrate using a cleaning/rubbing action
With a second clean cloth, immediately wipe all primer residues off with a buffing action
Allow the substrate to dry for a minimum of 5 minutes before installing the backing rod, sealant/adhesive or waterproof membrane system
Do not leave the primer longer than 4 hours before applying sealant/adhesive
Re-prime if 4 hours has elapsed without applying sealant/adhesive.
Re-prime if affected by rain, dust or other contaminants after application.
Mop up spills with cloth or paper. Clean up with Bostik Handy Wipes.
Comparable Materials for Bostik N-40 Primer
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