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Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
I need a glue which is good up to 150°C. Do you think superglue is good? Or would you recommend something else?
Because I dont feel like starting 2 threads, here is another question, I have a "hardpaper" transformer bobbin, what should I paint/impregnate it with to make it resistant to moisture?
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
Hi,
If you need quick and reliable setting, check for epoxy glue. I think most of them should stand 150C today. I wouldn't use superglue for that kind of temperature.
If you need large amounts at affordable cost, check for polyester boat resin. It requires much more time to set, produces a lot of heat if setting fast any may be troublesome... but here it is like 10 times cheaper than epoxy. By requirement, it can be thinned with styrene.
I use the same stuff to impregnate cardboard as well. I think it's better than the industrial transformer varnish, which is solvent based any may not dry well in deep gaps.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
I found a 1kg box of the boat epoxy in the shed so I tried it... it cures in 24 hours so I'll see
Electrical tape?? I'm pretty sure the tape itself melts at lower temperatures... It is for gluing some plastic insulating sheet (dunno the material but it was used as a heat transfer medium for FETs) to a mot.
Registered Member #509
Joined: Sat Feb 10 2007, 07:02AM
Location:
Posts: 329
JB weld is good for a decently high temperature, (I wanna say 600F, but not sure) and you can thin it with acetone. Not how sure how much you can thin it however.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
I also heard that JB weld is good. I heard of a guy that apparently glued up an engines crankcase with it, but i am not sure how much i believe that. Also, i know that people have used it to glue pvc pipes on engines for use as a ghetto muffler.
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Permatex® - Black Silicone Adhesive Sealant General purpose, black RTV indoor/outdoor sealant. Seals, bonds, repairs, mends and secures glass, metal, plastics, fabric, vinyl, weather stripping and vinyl tops. Maybe applied to horizontal or vertical surfaces. Waterproof and flexible. Temperature range: -80°F to 450°F (-62°C to 232°C); resists oil, water, weather, vibration, grease. Non-paintable. Suggested applications: Use where resistance to extreme thermal cycling, ozone and UV light is required.
I also found this data on Bostik's 9732 RTV silicone sealant, which may be of interest to you:
Registered Member #1548
Joined: Mon Jun 16 2008, 09:22PM
Location: Ohio
Posts: 61
I know a guy that had a hole in the crank case of his Quadracer 250 from when the chain broke off. He sealed the hole with a little JB Weld, and it's still perfectly fine...
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Temp resistent glue and other question
