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weather resistant plastic films for lamination?

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SolarWeenie

Mechanical
Joined
Jun 19, 2003
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7
Location
US
Hi,

We are looking for a weather (including UV) resistant, flexible polymer film to be laminated to extruded polystyrene foam. Desired service life is ~30 years. Tall order, I know. To date we have identified the following candidates:

1.5 mil bondable Tedlar.
Roofing membranes such as TPO, PVC, and EPDM.
A proprietary paint system that is supposedly also "fireproof".

If anyone can think of anything else I'd appreciate it. We would like to keep the cost under $0.40/sf.

We don't want to use anything metallic because per UL and the NEC, it has to be grounded, significantly increasing costs.

Thanks!
 
Kynar is a coating used on aluminum roofs as a weather seal.

TTFN
 
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