Quote:
|
Polyethene needs a solvent adhesive, such as that sold for solvent welding polythene waste pipes.
|
Absolutely not. Solvent welding pipes are PVC.
There is no satisfactory glue for polythene or polypropylene. The only good way to bold them is welding. Yes, really. I was taught to do this by an expert plastic fabricator.
The welding "torch" is a heat gun which was very like a modern surface-mount rework station. It emits a narrow jet of very hot air. The welding rod has to be 100% compatible with the plastic being welded which means you either just bought brand new material, or you have to use a spare strip of the actual plastic you are fixing. After that it is pretty much like flame-welding of steel - but less hot.
Most other plastics can be fixed by epoxy in my experience.