Quote:
Originally Posted by Otto
So, how thick should the Coroplast be for stiffness in an undertray?
4mm? 6mm? 8mm? 100mm? What?
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FWIW I have been using a free used political sign for my belly pan for over a decade. It measures 3/16" or 5mm. it is more reinforced than the photos in my album show but other than that is is holding up fine. My car is a diesel so the exhaust is fairly cool. I covered the whole bottom of the car from just behind the catalytic converter.