RE: [rp-ml] Attaching Epoxy Parts to Polypropylene Bottles

From: Lino P. Stavole <>
Date: Sat Aug 16 2008 - 04:41:43 EEST

In my experience the best bond is achieved when you both chemically prepare
(or etch) the part and mechanically prepare the part.


In this case, you are just mechanically preparing the part. Which is about
75% fine.


If you just want to chemically etch it you would have to use the material's
solvent or a special etching solvent for that particular material..


The other thing you can do is machine/ tool in some sort of undercut or
simple fastening method.

When the epoxy adhesive goes on then it will lock. or just machine the parts
to fit..


I know that is a lot of work. sorry about the crazy answer.


From: [] On Behalf
Sent: Friday, August 15, 2008 2:07 PM
Subject: [rp-ml] Attaching Epoxy Parts to Polypropylene Bottles


To attach epoxy parts to a polypropylene bottle (eg. windshield washer
bottle), we have had to sand the interface area of the bottle with #200
sandpaper in order to get a good mechanical connection when using an epoxy


Does anyone on the list have a solution to this problem that eliminates the
sanding step, yet results in a good mechanical connection?



Chatham Research


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Received on Sat Aug 16 02:38:29 2008

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