Gary Anderson

I need to bond 2 aluminum plates. One will be subjected to engine coolant heat, up to 190 degrees. Does 5200 work well at high temps?
Gary

Chris288

3M 5200 Spec. Sheet..

http://multimedia.mmm.com/mws/mediaw...000Qu_lWD9Ga4-

looks to me like its good to EXACTLY 190 degrees..

ratman

try jb weld it will handle a LOT of heat. the original slow cure is the best... good luck wif it

Gary Anderson

The 190 temp range is a little too close for comfort. Looks like I'll try the JB weld instead. Thanks.
Gary

mcollinstn

I've got some heat activated single part epoxy. It's past its expiration date, so I'll send you a tube for postage if you'd like. I've kept it in a freezer the whole time, so it's probably still good.

THIS STUFF WILL BOND LIKE MAD. Requires being cooked at 425 degrees for about 15 minutes to set.

We made robot arms for a transfer press system, and bonded aluminum angle brackets to magnesium support arms. Within 2 years, they had destroyed all 15 sets of these things by crashing them in their presses (they never would finish programming the failsafe sensors into the controller...). I mean they mangled these things into pure junk. But the adhesive only failed at one spot on one arm, where the entire bonded area was smashed to about half thickness, squirting aluminum and shattering the more brittle magnesium. Adhesive failed on that spot.

This stuff is only available in tubes to fit in a caulk gun sort of applicator (which I will lend you if you send it back).

The only worry is that the epoxy being old will have an effect. It had a 1 year shelf life un-refrigerated. I've had it in the freezer for about 6 years.

All you got to lose is postage. You can try it on a small part first.

lemme know,.

Gary Anderson

Thanks for the offer mcollinstn. I'll probably just go with JB weld since the bonding is really not structural.
But I would have paid to see those robots self destucting.

ratman

ditto

BadDog

PHD, is this epoxy available somewhere? I may have a use for some down the road. Sounds like a good thing to have in the toolbox.