I just applied DuraCoat to a set of Sig plastic/polymer grips.
A couple of things...
The quality of the coating seems to be sound.
The quality of the "value sprayer" that they offer for like $10 with purchase of a 4oz bottle is not sound. The thing quit on me when trying to finish coating the second grip (and I only did one side of each!)
The color in the bottle was not the color ordered or what was labeled on the bottle. (Or, their website pics are grossly misrepresentative.)
Shame on me for not being more leary of the color discrepancy before spraying and just _assuming_ that the color might alter through the bonding process.
(Heck, I'd never used the stuff before.)
My advice?
Get the DuraCoat ONLY if you have professional airbrush equip, or are willing to spend money on such. Then, plan on spending add'l $$ on thinner/cleaner, so as not to ruin your gear.
OR, plan on buying multiple value sprayers at the risk of not fully covering what you want to coat.
OR, get a pro to do it.
Finally, make darn sure the color is what you want. Hint: the color doesn't change through any chemical bonding process.
Also, price check what it would cost to either a) have it redone professionally or b) get whatever you coat replaced, should it not come out to your liking.
Of course, YMMV.