How do I prep aluminum and stainless steel before bonding with epoxy?

- minimally, to ensure a good bond, the surfaces to be bonded should be clean, sanded (no finer than 150 grit), and solvent wiped.

- Optimal performance can be achieved by following the surface preparation method below.

• Degrease
• Apply an aluminum pretreatment primer or solution such as Alumiprep 33.
• Rinse the metal thoroughly in cold running tap water followed by distilled or deionized water rinse.
• Bond within 3 hours

How do I prep steel (other than stainless steel) before bonding with epoxy?

What is the best epoxy adhesive for my project?