Proper prep and bonding of invar to epoxy panels

Letter 6067

Proper prep and bonding of invar to epoxy panels

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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, CA, USA

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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, MA USA

Ed. note: There were no public responses, or they would have been printed on this thread, but letter 11860 is rather similar. You are more likely to get help by posting a question of your own than by piggy-backing onto a 4 year old letter because thousands of metal finishers review our current letters page every week. Good luck.

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