Well, I'm all fiberglassed inside the helmet now! I used fiberglass cloth by 3M, the package of 8 square feet, plus about 1/4 of another package. So, I probably have anywhere from one to four coats of actual cloth in various parts of the helmet. I tried to concentrate the cloth in the areas like the "jaw hinge" to give those areas more strength. I'm sure it's stronger than I'll need it to be, but after I sand it and cut out the visor hole, I may add more fiberglass once I can see things more clearly through the visor opening.
I'm assuming that since I've put two coats of rondo in the inside and now various coats of fiberglass cloth, the sanding process can begin- and I can cut out the visor opening anytime, right?
Oh, the fiberglass cloth was done around 3pm this afternoon. It's now 6:42 and I the entire inside feels bone dry...though it's still outgassing some. So I guess I'll start the sanding process tomorrow night. Does anyone use Stanley Sureform to knock down all the high points first? When I was a kid a buddy and I did some custom autobody stuff. We'd always start the bondo shaping with Sureforms. Made less dust and was quicker to cut through the Bondo. Everyone here seems to just jump in with sanding...anyone try to use a Sureform first???
One last thing. The fiberglass ends are rather sharp where they didn't lay flat inside the helmet. Is it okay to sand them inside surface of the helmet to knock down the sharp ends of the cloth that are currently needle sharp shards sharper than any purple needle fired by a grunt or a jackal.