On Thursday, July 6, 2017 at 9:20:49 AM UTC-4, Richard Pfiffner wrote:
On Thursday, July 6, 2017 at 4:19:32 AM UTC-7, wrote:
On Monday, December 25, 2006 at 10:09:06 AM UTC-5, Guy Acheson wrote:
Getting ready for the winter plane projects. The question
comes up every year...what to smear over the gel coat.
Is there any credible comparison of wax vs PTFE vs
Wx?
I don't want to hear about avoiding silicones because
that seems to be a non-issue since refinishers don't
have much of a problem doing repairs and repainting.

Guy

When I worked a lab technician for a paint company - we would test coatings on samples that were left out in the elements 24x7. Has someone done a test like this on gelcoat/glass samples that were protected by wax or other products? It is an important issue to many of us - maybe we need a 'Dick Johnson' performance comparison. :-)

Many year ago I owned part of a paint company. We had several UV clear coat products. The active UV chemical was tinuvin and very expensive. Two types one for stabilizing the resin and one for blocking the UV. I really doubt if wax will hold the blocking agents for any length of time.

Waxing is good for those who like to wax. WAX on WAX OFF.

Richard

"I really doubt if wax will hold the blocking agents for any length of time.."

Do you mean wax specifically - or any topically applied UV blocker. Looking at
film thickness - can a topical layer a few microns thick actually block UV?