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Scott K Verified Purchase

Poly-Fiber Uv Smooth Prime Gallon

Great Stuff, fills imperfections, pinholes and weave voids in my Lancair project. It’s just the right consistency for a foam roller application sands easily leaving a ready to prime - baby bum - smooth surface. Love the fact I have the option of not spraying it on.

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.

Great product, has affinity for epoxy glass and well as metal. Rolls on easily with foam roller. Fills pores readily in epoxy parts, sands almost as easily as drywall mud. Easy to feather edge. A new can is difficult to mix up initially.

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.

This used to be a good product before they switched it to waterborne. Now I would recommend you just use an enamel or urethane high build primer. Being water based it has considerable shrinkage and dries very slowly, especially if you are in a humid climate. It runs very easily and will crack if you don’t do VERY light coats.