Thor Forums

[gmc]

My Hurricane (2014) has a double pancake light installed vertically just behind passengers seat... As I use that seat for our seasonal trips as an 'office - the light got a lot of use. It definately doesn't vent properly in that orientation - and started to melt/discolor the clean plastic lens.
Definitely cooler on LED now.

Heat certainly not good - but long way from melting to ignition...
Some examples:

Melting points and ignition temperatures

Plastic

Melting Point
Range

Ignition Temperature

ABS

88°-125°

416°

Acrylics

91°-125°

560°

Cellulosics

49°-121°

475°-540°

Nylons

160°-275°

424°-532°

Polycarbonate

140°-150°

580°

Polyesters

220°-268°

432°-488°

Polyethylene ld

107°-124°

349°

Polyethylene hd

122°-137°

349°

Polypropylene

158°-168°

570°

Polystyrene

100°-120°

488°-496°

Polyurethanes

85°-121°

416°

PTFE

327°

530°

P.vinylideneclor

212°

454°

PVC

75°-110°

435°-557°