How to prep surface of aluminum before bonding with epoxy.

Method One (Recommended)

1. Degrease with denatured alcohol or acetone.

2. Apply an aluminum pre-treatment primer or solution such as Alumiprep-33.

3. Rinse the metal thoroughly in cold running tap water.

4. Bond within 1 hour.

Method Two

1. Degrease with denatured alcohol or acetone.

2. Sand to 80-100 grit.

3. Clean sanding dust.

4. Bond within 3 hours.

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