bumper wrote:
Follow the acetone with denatured alcohol as a final cleaner. McMaster-Carr
does sell an acrylic adhesive "primer". I tested some, though not a very
good test, and could not discern any improvement over tape adhesion without
the primer. In both cases the tape stuck well.

I is important to apply the tape when it is warm or use a heat gun to
pre-heat the surfaces. As others have mentioned, sand all surfaces to be
bonded, including that portion of the Mylar. I use a 1/2" wide bearing
mounted in a wood handle to apply pressure to the mylar/tape bond.

all the best,

--
bumper ZZ (reverse all after @)
"Dare to be different . . . circle in sink."
Quiet Vent kit and MKII yaw string

Agree with all of Bumper's notes above. When I re-did the mylar on my
LS4 wings after doing some gelcoat work, I followed all of the above
procedures. Since the adhesive we are using is a pressure sensitive
adhesive (PSA), it's important to make sure that you apply a uniform
and comprehensive pressure on the joint. I wasn't smart enough to use
a roller, but I found that a plastic putty spreader worked pretty well.
I did notice a distinct improvement in performance when both the
wing and the tape were pre-warmed to about 70-75F.

P3