Yeah, you have to put it in when you're done each time, else it will warp. I had to scratch my amp rack because it warped pretty bad.yes it is, lol...well we did one layer of mat in the car on top of the original resin...should we still put it bak in teh car after each quote or will that be enough to keep it form nto warping?
x2that bottom isnt going to be very strong, no matter how many layers of glass you put on. Flat glassed areas are just not very strong. I would HIGHLY recommend glassing mdf in that bottom part. You will be glad you did later.
x3!!