WebJan 19, 2024 · Fiberglass cloth over foam with waterbased polyurethane. I done a lot of that for RC planes. But we do it there mostly for light weight especially under a flat paint job. ... Pmullen503 wrote:If that paint barrier fails, polyester resin will dissolve the XPS foam and all your work is trashed. Polyisocyanurate foam can be glassed with polyester ... WebWrapping fiberglass over a pre-carved foam male mold is not new, it is regularly used to make custom surfboards. What I offer is a way to shape a mold that will yield smooth, …
How to work with fiberglass over foam - Quora
WebGluing frame to the XPS shell before fiberglassing. *note* predrill and counter-sink the skinny 1x2"s. They can split easily if over-pressured. Also, I glued every piece of framing for more stability and rigidity. ... Be careful using fiberglass a lot of foam will desolve with the fiberglass resin. WebJul 28, 2024 · EPS - Expanded Polystyrene Foam Insulation Boards: Rated at R4 per inch; EPS foam insulation boards are more permeable to air and moisture than XPS, but it doesn't retain moisture to the same extent … mark blackwood facebook
I need help - Epoxy over foam board - DIY Home Improvement Forum
WebOct 31, 2012 · Im working on the roof design for the boat now and will use 1.5" x 1.75" lumber ( ripping an 8'- 2 x 4 in half ) to use as rafters on either 16" centers or 12" centers. I was going to lay either 1/4" ply or 3/8" ply over these rafters and then a layer of fiberglass to waterproof it. There will be some bend in the rafters for drainage. WebThis video shows me making Stringers and knees from XPS (Extruded Polystyrene) for my boat. This is the first segment of the build, and it includes how I found dead center, made a line drawing... WebApr 10, 2024 · Cut the insulation: Use a straight edge and a utility knife to cut the foam board insulation to the size and shape of your windows. Make sure to leave a small gap between the insulation and the window frame to prevent any moisture buildup. Attach the insulation: Place the insulation over the window and use adhesive tape or foam board … mark blackney park clinic