What Glue for Plastic

[crokett]

Was trying to ohm out my generator but multimeter did not work. It is a very good one that belonged to my grandfather so I want to save it. I opened it and discovered that one of the plastic posts that holds the battery in cracked off. I was thinking superglue but I think I would need almost a solvent glue for the repair to hold - the battery is a very snug fit when inserted.

[LCHIEN]

Was trying to ohm out my generator but multimeter did not work. It is a very good one that belonged to my grandfather so I want to save it. I opened it and discovered that one of the plastic posts that holds the battery in cracked off. I was thinking superglue but I think I would need almost a solvent glue for the repair to hold - the battery is a very snug fit when inserted.

www.thistothat.com is always recommended fo glues

I would use a solvent glue like Duco cement.

[eezlock]

glue?

You might want to try a good 2 part epoxy ( comes in two tubes) this stuff
really holds good on most materials that I have used it on in the past.

[mpc]

I've had really good luck with a little 2-part glue called "Plastix" or something like that. I've seen it at Home Depot and auto parts stores. It comes on a cardboard + plastic pack hanging-on-the-display-hook pack like regular superglue and whatnot. There is a small glass jar with a dinky brush in the lid, and a squeeze tube. You brush the jar liquid onto the two parts to be joined, let them air dry for 30 seconds or so (? I think... it's been a while) and then squeeze on a bit of the real glue. Press together, hold another 30 seconds or so, and that's it.

Dad used this stuff on one of the plastic hinge nubs of his Chevy pickup's glove box door. 6 or 7 years so far... with mom slamming the thing shut - which is what broke it in the first place 10 years ago.

I've also had good luck with 2-part epoxy from Home Depot that had "plastic" listed in the things it'd glue. It's just a lot messier than Plastix.

mpc

[Thom2]

Permatex part # 82565, Dr. Bond Plastic Bonder .... I believe this is a new label for the Plastix product that mpc referenced.

[Stytooner]

The solvent adhesive I use for acrylics, lexan, pet G etc doesn't work on all plastics. The above suggestions are good ones. Plastics can really vary in make up, so unless you know the exact type, it's best to use something specific to plastics. IE epoxy and other formulas for plastics. Bakelite, phenolics etc can present some trouble even when the glue is for plastics. Any one adhesive can sometimes be a crap shoot and you may have to try more than once to get one that works as it should.
I usually keep two or three different kinds of epoxy on hand as well as other type glues. Goop, weather stripping cement, good old model airplane glue, gorilla glue, liquid nails etc... If I need to adhere something, I don't usually have to run out and get it.
LOML always presents me with some oddball things to repair. I have a good track record with those things.

[cabinetman]

Some of the "super glues", "Krazy Glues", and some epoxies, will not work on all plastics. On some I found one called "Plastic Surgery" that worked on a type of plastic. Gluing a little post at the base that takes a lot of pressure is asking for a miracle..

Make sure you have a perfect fit when gluing. If your first few attempts fail, it's likely the fitting pieces will lose their matched fit.

[thiggy]

Old electrical devices were usually made of Bakelite. I imagine that either a CA glue or epoxy would be most appropriate for this application.

[rja]

Try JBWeld

[crokett]

Try JBWeld

Got some today. Still not sure how it happened. Used it a few weeks ago and it was fine. Its been in its box ever since. I sure hope I can fix it. In my early teens Grandpa taught me how to use it while we improved some of my electrical toys. My favorite was when we hopped up the ignition system for my model rockets.