The pinhole killer! Waterborne polyurethane primer plus UV blocker applied with a foam roller or spray gun. Fills pinholes in layups or molded parts. White color. Once UV Smooth Prime has dried for 7 days, spray white two-part catalyzed Epoxy Primer to seal the surface and provide moisture and chemical resistance prior to spraying top coat paint. Dry sand for a smooth, pinhole-free surface. Dries in 20 minutes, sand in two hours. Clean up with water. Use Poly-Fiber Gun Cleaner to clean your spray gun after each day's spraying. NON-HAZMAT. Three gallons required for most composite aircraft.
Note: CROSSLINKING NO LONGER REQUIREDImportant Notice: All mixed paints are special order and are non-returnable.
Stir well, goes on like a thick milk. Be sure to apply in thin coats, and do at least 3 prior to sanding. I sanded with 1500 grit.
At first I did not like this product because it seemed really thin when applied. I then double checked my mixing and I needed to stir more to get the product that had settled in the bottom of the can. Then it was a little thicker than milk.
Great for filling those last pinholes
Expensive but the best product available.
Requires a lot of effort to properly mix solids into carrier even with a powered stirrer. Product works very well when thinly rolled on with foam roller with many overlapping strokes which aids in forcing the filler into the pin holes putting on too much will cause runs and sags. Sands very easily and smoothly when dry.
Be advised, the can has new instructions and directs you to clean the fiberglass with acetone first, then use diluted 310 cleaner, rinse with water, then use something called prep wipes before spraying. So far I cant find a source for prep wipes and hope to find a suitable cleaner locally.
Per the manufacturer: No, it is not thinned or diluted.
This material has a 4 year shelf life in a sealed container. If the material is dried out to a solid piece is can be thrown in the trash, or it can be taken to your local haz mat disposal facility.
The first two are the year, the second 2 are the month and the rest is an internal vendor code. This would have a DOM of 03/19 (March 2019).
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