Cotton-Fiberglass Composite Makes Lightweight RV Countertops

Per Hackaday, Whitburn Studio is building lightweight RV countertops using printed Japanese cotton fibers in epoxy resin instead of traditional glass or carbon. The construction layers a decorative cotton composite over a sandwiched core of thin plywood and XPS foam, with a protective fiberglass layer—a technique inspired by aircraft designer Burt Rutan's moldless composite methods. The engineering is impressive: the larger countertop weighs just five point two pounds, including the sink cutout, yet resists denting from everyday use. Because weight matters in a vehicle, the craftsmanship pays off.

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