windscreen delamination

[Simon]

Both my previous GTD's suffered slightly from this, I understand it's a common problem, What causes it?

Simon

 

[Simon]

Maybe it's just me then

 

[Randy V]

Windshields vary in composition from USA to the Rest-of-the-world but I have had it happen on a couple of cars here. I attributed it to two things;
1) Being old and the bond breaking down
2) Not being sealed well and moisture was allowed to creap up between the plastic and the glass.

I don't know if our DOT here will ever get to the point of allowing windshields with passenger facing laminate. It would only make sense to me as it would help reduce the amount of glass in one's face during an impact..

If yours is delaminating - I would suggest sealing the edges of the glass with a clear epoxy. I don't know what else you could do but slowing / stopping the capillary action between the glass and laminate would be a good start..

 

[Jac Mac]

Simon,
Randy makes a good point about sealing the edge, any moisture ingress between the laminations in colder climates will cause further delamination if exsposed to freezing level. There is also the possibility that some chemicals,cleaners etc may attack or alter the properties of the plastic laminate in the screen. Use of an unsuitable sealant may even be a factor.

Jac Mac

 

[Scott Calabro]

Simon,

I seem to recall some aircraft specific products that we have used at the hangar before to repair aircraft windshields. Tuesday when I go to work I will look them up and give you the scoop.

Regards,
Scott

 

[Brian]

Simon, did the windshield fit into the flange to begin with? Or did it have to be held inplace while bonding? If the windshield was not a good fit to begin with, then perhaps the built in tension is casuling the bonding layer to fail.


Brian