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[quote user="cudaken"]  Looking forward to the answer on this.  I have pink foam from Home Depote and Blue from Lowes, which is stronger? ...... was going to use 2" foam on top of the plywood and center of the track is a Cookie Cutter set up.                 Cuda Ken, building again[/quote]Pink is an Owens Corning product, Blue is by DuPont.  Both come in varying densities.  The density makes the difference.As far as strength.  I am not concerned so much by the actual strength but by the ease at which the FoamulaR 150 compresses.  To much flexibility could be a bad thing for track alignment
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