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Try a little bit on the end of the arm to see if it melts the acetate. Remove the lenses before gluing. It takes 24hrs to fully harden. I've never managed to glue a frame with any long term success but I've not tried many either. Normally the repair fails because there's too much stress on too little surface area.
Airhead-
Good advice, I did the arm test and no damage. Left the lens in place because they kind of 'pop' in rather than tighten up with a screw and no way that would hold up. I'm not expecting it to last, I just need to be able to wear these until I can get replacement, I'm a bit blind without!
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Normally the repair fails because there's too much stress on too little surface area.
A little trick that model builders use is to drill a small hole in each end and pin it with 1mm brass rod then glue.
hoefla
Sumo
I need to do a quick repair on a pair of specs - acetate frame. Is Gorilla contact adhesive going to react with either the acetate or the lens (high-index plastic)? I know it's not the ideal glue but it's what I've got, I just don't want to melt the frame or haze the lens while I'm at it.