Pettit Fiberglass Dewaxer is a special blend of solvents, formulated to cut through and remove mold release, grease, and previously applied waxes from the gelcoat. Can be used above and below the waterline. Fiberglass de-waxing is necessary because visible and invisible release agents remain on the hull from the manufacturing process. Covers approximately 400 square feet per gallon.
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Prior to surface preparation of any kind, all bare fiberglass to be painted must be thoroughly
washed. 95 Fiberglass Dewaxer is a special blend of solvents, formulated specifically to cut
through and remove mold release, grease and previously applied wax from the gelcoat. Regardless
of the boat's age, the initial washing is imperative -- residual parting agents, utilized
by the manufacturer to "pop" the boat from the mold, may still be present, although not
Although the fiberglass will be slightly etched by the strong solvents in Fiberglass Dewaxer,
the surface must be sanded -- or a coat of Bottom Prep 6999 Sandless Primer applied -- before
Approximately 400 square feet per gallon, depending upon number of applications.
Do not use sparingly.
Liberally wash the surface to be painted with clean rags and Fiberglass
Dewaxer, changing the rags frequently (this prevents merely smearing the contaminants
Always perform this operation before sanding to avoid driving the wax further into the gelcoat
as well as gumming the sandpaper. After sanding, repeat the operation to remove sanding
I first need to sand off the paint before getting to the gelcoat and then strip off the gelcoat to get to bare fiberglass.This is all in preparation for a repair and repaint to the entire hull. At what point in this process do I need to dewax?ThanksJerry
You should use this first so you can prevent any of the contaminants from being sanded and pushed into the finish, then use this product again right before you prime to remove the residual wax leftover from the gel coat, thank you.
What's with the red dye?
I used to love this product, preparing for awlgrip painting my boats, before they added the red dye to this dewaxer. Just tried to use on my cabin trunk, and the red got trapped in the non-skid edges, and I cannot get it out of the deck hardware bedding. Because of the red dye, I can't use it for my current painting project.
Would buy again - but less this time
A little bit goes a long way, and it's not easy to get off once you get it on. All in all, it's pretty difficult to use. It is however a very powerful solvent and seems to do a good job, if you can get it off.