Well I did email the manufacturer and ask them this same question and this it the reply I got. ..........
Hi Timothy,
Thanks for your question and your interest in BugSlide. BugSlide is designed to keep matte finishes matte and glossy finishes glossy. It doesn't contain any wax, petroleum, Teflon or other harsh chemicals that can alter the finish, so you should be good to go!
Our recommendation is to try it on a small spot first to see if it works to your liking before applying it to the entire helmet.
Here's some additional information from our FAQ page: http://www.bugslide.com/#!faq/c24vq
To find a BugSlide dealer near you, you can use our online dealer locator: http://www.bugslide.com/#!where-to-buy/dyva9http://www.bugslide.com/#!where-to-buy/dyva9
Have a great weekend!
Stephanie
Stephanie Murphy
Marketing Director
P: 503.442.1697