anderlan
1045
12
7
Jul 27, 2026 2:59 AM
anderlan
1045
12
7
Clockworkdancerobot
Finally a use for Bigot chicken.
VulcanTourist
Your first mistake is using cyanoacrylate for that job. It's a brittle inflexible adhesive. Even an amine resin would be better.
spontaneous9
Any preference as to exact product? I have a particular plastic repair in mind I'm afraid to even try because it has to be structurally sound enough to handle a certain amount of flexing.
I know superglue won't do the job because it never worked on glasses frame repairs.
FeloniousMonk13
I bet the gorilla 2.part epoxy would work
spontaneous9
No, I need something that doesn't just sit on the plastic, but chemically fuses with the plastic, like airplane glue. Epoxy is too stiff; it needs to bond to the surfaces as well as flex when moderate torsion is applied.
VulcanTourist
How much is "a certain amount"? Resins like JB Weld do have some flexibility. Twisting might be problematic. Even though it bonds incredibly well to almost everything, it doesn't "merge into" materials like you're describing (below). You want a plastic weld.
spontaneous9
Yeah, but what. I need a product endorsement. Getting it wrong would mean throwing away my vintage Koss headphones.
VulcanTourist
Photo of the break at issue? I'm not a materials or adhesives expert, just someone who's still in training to be one. I'm not current on the available brands and formulations; my usage slacked off some years ago.
A strictly chemical approach may not be what you want. There are "plastic soldering irons" that can melt metal reinforcements into existing plastic.
spontaneous9
This gives me an idea I think will work. Thank you for that suggestion.