My dashboard flew through the IVA with no foam. You don't need foam if its radiused. I have 12mm MDF, ran a router around the edges to give the 6mm radius, then stuck some pipe on the bottom edge (40mm diameter) to give my 19mm radius. Personally I think foaming is tricky to give a good finish. Looks bubbly and uneven.
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Built/IVA'd Roadster - RS2000 16v, ZX6R, Megajolt
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