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Proper prep and bonding of invar to epoxy panels

I need to bond an invar plate to carbon reinforced epoxy blocks.This is for a thermally stable platform I'm building for a telescope.Can anyone tell me the proper surface prep for the invar plate to maximize adhesion using room temperature epoxy adhesive? If chemical treatment is the best method, I would appreciate a description of the procedures, chemicals, and pitfalls.

Thanks,

Chris Dumlao
engineer/hobbyist - Pleasanton, California, USA

I recently found a product called "Caucciu" in Italy, that translates as "Invar Rubber" and on doing a web search I found you and I am hoping that you may be able to direct me as to what sort of manufacturer/company I should be looking at to obtain this product. I live in Sydney, Australia. Any help you can give would be most appreciated.

Regards,

Peter Kissner
- Sydney, NSW, Australia

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Were there responses to this request for information regarding surface preparation procedures for invar prior to bonding with epoxy?

Todd Mower
- Lexington, Massachusetts USA

Ed. note: There were no responses to date, or they would have been printed on this thread, Todd. But maybe that will change. Good luck.

November 13, 2010

WE ARE INFORMED THAT ITW PLEXUS ADHESIVE MA420 AND THEIR PRIMER PC120 ARE FOR BONDING INVAR TO CARBON FIBER COMPOSITES.

KANNAN VENKATACHALAM
OPTICS ASSEMBLY MANUFACTURER - Pondicherry India

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