On 20/05/2021 18:33, Chris Bacon wrote:
On 20/05/2021 17:52, David wrote:
http://wiki.diyfaq.org.uk/index.php/
File:Broken_side_caravan_front_locker.jpg

Eurgh. I'd *guess* it's some sort of foamed PVC. Floplast 250 sticks
that as well as ABS. You could experiment with some acetone, e.g. nail
varnish remover if you know anyone that uses such stuff, you could get
some on a clean rag and see if it dissolves any of the material when you
rub it on. If it does, solvent cement would be useful (the MEK in it is
rather more aggressive than acetone), but you still have the issue of
what to bond to it (maybe a ring doughnut shaped piece of stuff). More
of the same sort of material, or ABS.

However, is it either of those two plastics is the question!

Do you think it would be foamed at 3mm? I'd be more inclined to suspect
PE or PP, unfortunately.

But I agree with the rest. Given the geometry, after solvent testing it
would not be hard to do a little trial somewhere away from the damaged area.

I can't really figure out the problem from those images but, if there is
space behind, it might be possible to shape a piece of thin aluminium to
back up the whole damaged area. Then, if you attach that using pop
rivets from the front it's sometimes possible to make a fairly
inconspicuous repair even on polyethylene. (I have a heavy duty
wheelbarrow that I repaired that way). If you sandwich Sylglas tape
between the plate and the original that should give you quite a strong
repair.