Broken light cluster on the car? all the fragments?
Go to the chemists and buy Acetone ( methyl ethyl ketone or the m and e swapped) about £2-3 once they realise you don`t want to sniff it

You need some CHEAP sellotape made of cellulose so it wont melt,and isn`t very sticky and a camel hair brush, like a small make up brush that will hold enough not to evaporate too quickly

Tape the bits together on the outside bubble free and paint along or drip the solvent inside so it runs in the cracks, leave it overnight and be astonished. Don`t overdo it as it will sag and bubble

Only a few light clusters are polycarbonate, doesn`t do much for that. The rest are polymethyl acrylate and similar ( perspex) and that is the solvent they use if not RF heating to assemble them.

Worth a try before you shell out 50 notes just cos some tosser has bounced and run, it is hard to see the joints as the solvent has welded them back pretty bang on. whip the tape off in the morning and t-cut to a polish
(tootired Is searching for a funny sig, nothing good so far, Thu 17 Nov 2011, 1:53, 3 replies)

This is a print out and keep tip.
gets a thumbs up.
(username failed moderation, Thu 17 Nov 2011, 9:47, closed)

Not the same thing.
Acetone and methyl ethyl ketone are very different chemicals. It's MEK that makes a useful plastic welding solvent. You can buy it at model shops as liquid polystyrene cement - one common brand is MEK-Pak.
(ubergeekian, Thu 17 Nov 2011, 10:19, closed)

Uh-oh.
Nerd fight!
(username failed moderation, Thu 17 Nov 2011, 10:31, closed)