Can someone recommend a polyester fairing compound that will fully cure in super thin pulls? I have been using Super Poly-Fill and its great as long as it has a little thickness to it. I have a lot of shallow indentations that are too deep for high build primer so I am trying to fair them with filler. The Super Poly-Fill cures fine in the low spots but remains tacky in the surrounding areas that have just a thin film which stays tacky and instantly gums up sandpaper. I have tried over catalyzing to a point of having virtually no working time with pretty much the same results. Looking forward to any suggestions as I am tired of the 30 second life span of a sanding disc.