The guy in that article states this-
Quote:
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A typical exterior lay-up consists of two layers of 6 ounce fiberglass cloth and polyester laminating resin, applied one lay-up at a time. In order to avoid uneven surfaces, do not use mat on the exterior. Apply similar lay-ups (two cloth) of fiberglass over the back side to completely encapsulate the foam. Extra cloth lay-ups and mat reinforcement may be used on the back side, along inside corners, and over areas where the foam has been sanded especially thin. When fiberglassing is done, cut hatches, doors, and windows from the body, then detail the interior.
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I have a lot of cloth, the woven kind. Not a lot of mat. Think I should buy some mat? I thought cloth would work better...