Glue problem

**ANDY M** · #1 01-07-2013, 11:04 PM

I have an old pair of Sennheiser headphones that work great, but the plastic broke where the can is connected to the head strap.
I spoke with the manufacturer and they weren't much help. Crazy glue or Super glue (Cyanoacrylate) reacts with the plastic and it won't bond. In fact, it won't even dry. I also tried a two stage epoxy, which took over a day to dry and then held up for only a few days.
Any suggestions? [img]<<GRAEMLIN_URL>>/dunno.gif[/img]
I really don't want to buy a new pair. Dr. Dre has enough money already. [img]<<GRAEMLIN_URL>>/mad.gif[/img]

Thanks,
Andy

**Mr70** · #2 01-07-2013, 11:09 PM

Try one of the Gorilla Glues.

**ANDY M** · #3 01-08-2013, 07:07 PM

Thanks for the suggestion, but if you look at the bottom of the page, next to the "*", it says "bonds to most plastics...".
These headphones fall into the "what kind of plastic is this?" category. I need something that will weld the plastic and not react with it.

Any other suggestion? [img]<<GRAEMLIN_URL>>/dunno.gif[/img]

Thanks
Andy

**njsteve** · #4 01-08-2013, 09:52 PM

I used my plastic welder to fix the Chrysler headphones that came with the built-in DVD player in our 300. My kids have slammed the car doors on them enough times that they were crunched into oblivian. No glue really holds them so I just used the plastic welder (really just a soldering iron with a flat tip) and melted them back on to the metal head band.

They are still holding up after several re-repairs over 7 years.

It sure beats paying another $300 for a new pair from Chrysler.

Here's the one I have. You can buy different plastic welding rods depending on what you have (probably ABS) but a lot of times you don't even need the welding rod, you just heat and smear the existing plastic back over the cracked area.

http://www.amazon.com/Urethane-Suppl...ef=pd_sxp_f_pt

resto4u · #5 01-09-2013, 01:13 AM

try "plastic surgery" by shurhold. best glue i have used on plastic.