Where to find High Density Polyethylene plastic boards

drdirectional said:

Hello does anyone have an idea where I can find the thick plastic sheets, similar to those used for hockey boards, on the island? Ive tried all the ferreterias with no luck.
I need something to put on my patio as a lid/seat on a bench which is directly exposed to the elements, Plywood disintegrates within 6 months, even after i glued an acrylic sheet on top of it. 
Any ideas would be greatly appreciated. 

Thanks

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drdirectional said:

Thanks guys, and yes I thought of that but those are usually 2x4 or 2x6 boards, I need a sheet 4' x 8' in order to keep the water from getting into the bench underneath that I use for storage of the pillows etc.  

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drdirectional said:

Hello does anyone have an idea where I can find the thick plastic sheets, similar to those used for hockey boards, on the island? Ive tried all the ferreterias with no luck.
I need something to put on my patio as a lid/seat on a bench which is directly exposed to the elements, Plywood disintegrates within 6 months, even after i glued an acrylic sheet on top of it. 
Any ideas would be greatly appreciated. 

Thanks

Click to expand...

jstarebel said:

A fairly cheap, easy cure for your issue if you can't find an acceptable substitute would be to seal the plywood after it has been prepared for installation with polyester fiberglass resin. No cloth needed, but the resin will keep it from rotting for years. The first coat saturates into the wood and the second will fill any pin holes. It won't be really slick either as the woods grain will still be prominent.

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