What kind of Glue? - Router Forums
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post #1 of 24 (permalink) Old 11-23-2019, 09:29 AM Thread Starter
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Default What kind of Glue?

Working on a project that uses nylon washers to reinforce hold down pegs on a polycarbonate shell for an remote control car. It is easy to loose the nylon washers as the shell is removed often by my grandkids to charge the batteries. Is there a glue that will hold these two very dissimilar materials together? I am able to get a decent grip on the shell with either super glue or epoxy but the nylon washers seem to pop loose almost immediately. Mostly used in mild weather so temperature swings do not seem to be an issue.
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post #2 of 24 (permalink) Old 11-23-2019, 10:38 AM
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How about Contact glue (rubber cement)?
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post #3 of 24 (permalink) Old 11-23-2019, 11:50 AM
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I saw an epoxy at our Home Hardware chain a few years ago that should work but it was a little pricey at $20 a kit. You didn't say how strong a bond you need. The contact cement might work as that is a pretty strong solvent in it and it might bite into the nylon. Maybe double sided carpet tape might work if you just want if a weak bond is okay.

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post #4 of 24 (permalink) Old 11-23-2019, 12:43 PM
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Or make washers out of the same stuff as the shell.

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post #5 of 24 (permalink) Old 11-23-2019, 01:23 PM
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post #6 of 24 (permalink) Old 11-23-2019, 02:20 PM
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Re the 'Robber cement`, 'Contact cement'.
Charles made a comment re the solvent biting into the nylon. I realized that I don't really understand the physics of why it bonds to a wide range of substrates, as a separate issue of why the two glued surfaces bond to each other.
I'm pretty sure the solvent isn't part of the process...it's there to keep the rubber in suspension/solution until the solvent flashes off. The cement will bond to just about any non-porous, as well as porous surfaces. Maybe someone can explain why at a molecular level it does that?
https://en.wikipedia.org/wiki/Rubber_cement
https://home.howstuffworks.com/uses-...act-cement.htm
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post #7 of 24 (permalink) Old 11-23-2019, 03:18 PM
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I’m wondering about the glue for ABS or PVC ?

I donít always insulate , but when I do .
Ok ,I never insulate
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post #8 of 24 (permalink) Old 11-23-2019, 05:07 PM
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Quote:
Originally Posted by RainMan 2.0 View Post
Iím wondering about the glue for ABS or PVC ?
Not really 'glue' in the adhesive sense, Rick. It works by chemically melting and welding two similar plastic compounds together. That's why there's so many different PVC and ABS types available; the chemistry is very specific to the type of plastic.
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post #9 of 24 (permalink) Old 11-23-2019, 05:16 PM
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I’m aware . I’m thinking the melting action may keep it together. But who knows

I donít always insulate , but when I do .
Ok ,I never insulate
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post #10 of 24 (permalink) Old 11-23-2019, 05:35 PM
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Duck tape...holds anything! OK, Gorilla Glue?

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