netneut
finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing


Finishing.com has been free for 22 years,
but without net neutrality we could soon
cease to exist. Do us a solid, click on
the banner, and contact congress today!
HomeFAQsBooksHelpWantedAdvertiseForum
topic 11975

Aluminum to polycarbonate bonding


 

I'm trying to bond an aluminum fitting to a flat piece of polycarbonate. What would be an appropriate adhesive for this. I would like the bond to be airtight and fairly strong.

Thanks,

Marty Verbic
engineered materials - Urbana, Illinois


 

Adhesive Bonding of Aluminum Alloys

Marty,

Although I was nigh on 40 years in the thermoplastic (fabricating/acid resistant) industry, I know nowt about Polycarb as it is not a good acid/alkali resistant material.

There may be a way if you consider that epoxy is nbg.

Any supplier of Polycarb would be able to tell you just what solvents (if any) they use. Then get some and in a tin mix up a solution of, say, 25% Polycarb with the solvent. Mix thoroughly.

The next step is to coat the PC with a heavy layer and immediately lay on top either a piece of coarse cloth or, preferably, some (glass) woven roving. Allow the bottom loops of the roving to become saturated. Then let dry. This may take a day or so. Now you have (or should have!) exposed glass loops which, with epoxy, will glue very satisfactorily to the aluminum.

A convoluted method maybe ... but this method was used with very great success (before bonding resins came on the scene) in order to 'bond' fibreglass to PVC and make 20 foot dia tanks, etc.

This maybe totally impractical in your case ... but then you didn't give any sizing or idea of how big these parts are. (for that matter most 'inquirers' don't give enough data).

freeman newton portrait
Freeman Newton
White Rock, British Columbia, Canada

(It is our sad duty to
advise that Freeman passed away
April 21, 2012. R.I.P. old friend).




This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.