Perspex Window Crazing

Jan 31, 2013
1,551
1,614
Nottingham
MH
Hymer Starline 680
Exp
Since 2011, previously a tugger
Hi all

Only noticed this recently and it seems worse now than a few weeks ago. Rear window on our 2002 Hymer b544 has this odd crazing appearing. Mostly towards one side, on the outer laminate, but quite severe along the edge. It's just like little cracks in the perspex about 1/4 to 1/2 inch long.

The window appears simple enough to replace.

Anyone else had this or have any idea on the cost of a window and good supplier?

Cheers Dave
 

Peter_n_Margaret

Free Member
Oct 27, 2013
87
62
Adelaide, Australia
MH
"C" class 4WD DIY
Exp
About 20 years
That crazing can be come from a couple of causes.
1. UV breakdown. Should not be a problem with decent quality materials, but will be an issue with acrylic that has poor UV protection.
2. Chemical attack. Take great care with the cleaning materials you use. Hydrocarbons / solvents are generally a no-no.

Once it happens, there is no "cure" except replacement.

Cheers,
Peter
 
OP
Dave and Ginny
Jan 31, 2013
1,551
1,614
Nottingham
MH
Hymer Starline 680
Exp
Since 2011, previously a tugger
Cheers Peter, I think it must just be age and UV as I don't use any nasties on it. Curiously the worst part is on the side directly above the fridge top vent, whether that could be a factor I don't know. They look easy enough to replace, just very expensive to buy!
 
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