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Old 02-11-2011, 03:13 PM   #4 (permalink)
Geo Metropolis
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ABS plastic is also a good choice. It comes in a few thicknesses, my skirts and grillblock are made with 1/8in abs. It's flexible to a point and if you heat it you can bend it more. Unlike coreplast it's a bit harder to cut with a boxcutter. Coreplast cuts like butter comparitively, you have to score and score and score to get through the ABS (or just use a jigsaw). But ABS it more durable than coreplast which punctures rather easily. Also when I use coreplast I usually tape the leading edge because I don't want air getting caught up in the corrugation.
At my plastics supply store ABS 4x8's are $24 but coreplast is only $14 so coreplast is much cheaper.
The FRP you linked to is fine. Advantages would be price and availability (easy to find)
The disadvantages would be lack of color choice and it's very brittle so bending beyond mild curves would be tough.
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