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Old 06-08-2021, 09:59 PM   #18 (permalink)
freebeard
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Nudo are who make Polymetal, which would be my preference. They have a product that is a compromise between the two, aluminum skin on polypropylene corrugations.

www.nudo.com/p_alumacorr.php?crumb=%3Ca+href%3D%27l_sign_panels .php%3Fitem%3Dproduct%27%3ESign+Panels

The advantage (to me) of the aluminum skin is that it comes prefinished with baked enamel. I see they have a new product called ValuMetal, similar to Polymetal without the fire rating in white only.

www.nudo.com/p_valumetal.php?crumb=%3Ca+href%3D%27l_sign_panels .php%3Fitem%3Dproduct%27%3ESign+Panel

Whichever be sure to seal the ends of the corrugations shut before it hits the road.
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