Got some small parts to glue that I think are PE. I’ve tried Crazy Glue, Gorilla Glue, Cold Weld and so far nothing seems to work. Any recommendations for a commercially available glue (like at a hardware store) that may work? Epoxy?
Parts are just some interior plastic parts in my car. Nothing that take a huge amount of strain, but there is some load on the part and not much surface area (clean cracked apart on a 40+ year old fastner).
Doubt it. The hardware store epoxies are packaged in PP and PE containers, and you can cap, store, uncap, and reuse them. Which might mean the epoxy doesn’t stick to the material you need it to stick to. Scotch Weld kind of sucks to use, but it works, no question.
Not sure what kind of overlapping the parts have against what they’re supposed to bond to but with PE you might have the best luck heating up the hidden or overlapping area and squishing it into place (or if you need more “real estate” to squish, I’ve used cut strips from a cleaned out milk jug as an extra substrate. Heat, force and hold.
BUT, if you really want the best bond, use PE/PP adhesive - it’s a chemical bond that breaks down the plastic as you press the parts together, then molecularly rebuilds the two pieces into one - it’s awesome stuff but is probably only available at specialty places (we used to use Cadillac Plastics in Detroit and there’s Total Plastics here in B’more).