Hi, what is the process for sealing with fiberglass and resin? Is this a cloth that you wrap around the cardboard tube?
You get a mat of fiberglass (not the woven type but the one with strands), Bondo sells them. Get Bondo Fiberglass resin and poor the resin into a disposable cup and add the appropriate amount of drops of liquid hardener in the cup. Take a Disposable chip brush and with the fiberglass laid on top of the concrete form tube, work it into the fiberglass. You have 15 minutes of work time to get everything in that cup onto the fiberglass, so work In small portions. Once you’re done, let it cure and then sand with 80 grit. After sanding, use Bondo Glass filler to fill in the voids. Sand smooth with 120 grit, then 220. Fill any fine holes from the bondo with regular Bondo then sand again with 220 and finally 400 grit and apply etching primer and spray paint with whatever color you want, I chose white.
Edited by B.C. Arnot, 08 September 2020 - 02:34 PM.