This is my first attempted at covering with Polyspan and I have sanded through and created some fuzzies on the leading edge. The question is how much clear does one have to apply before they can be knocked down? Is there a better way to get rid of the fuzzies, like rubbing CA on them then sanding? I thought I had applied enough clear to prevent this from happening, but this is not the case

Thank you for your help

Robert

Thin CA is the easiest way to cure the fuzzies.  It is virtually impossible to put enough clear on it to get them to go away once they appear.

Thank you for your help. I will probably give both methods a try on different areas of the model to gain experience. I had read all of the cautions about sanding through the dope, yet I still managed to do this on the leading edge. The good news is the areas are small so the fix should not add to much weight.

Thin CA, wipe over it with a paper towel to kick it.  It works.

Paper towels get fuzzy too stuck all over the wing!