Permabond 2K Primer - for maximum adhesive performance and long term durability
Permabond 2K Primer is a multi-purpose primer which helps to prepare substrates for bonding with adhesives, indicates if the surface is wetting out properly or if additional surface preparation is needed and it contains an adhesive promoter to increase bond strength. It is ideal for preparing metal, glass, plastic, and composites for bonding. When bonding metal, note that Permabond 2K Primer offers the added benefit of protecting against corrosion which increases long term durability and bond strength.
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To prepare surfaces for bonding:
Degrease and lightly abrade bond areas.
Degrease again to remove dust.
Combine contents of both bottles (A&B) into the spray bottle.
Attach the sprayer and shake well.
Spray the bond area with a thin layer of primer.
Compare the wetting – if the primer beads up as shown on the right, more surface preparation is needed.
On the left, the primer wets out the surface leaving a uniform coating indicating that the surface is ready bonding. The surface to the right shows the 2K primer beading up, which indicates that further surface preparation is required.
If wetting is good, remove excess with a clean, dry cloth or tissue.
Allow to dry before bonding.
Use mixed primer within 8 hours