I used UV polyester for 6 years and had good results but also with some issues. I and other builders have found delamination problems due to using the UV filler. I would pay attention to that if your filling with UV filler. I have also found that with a UV light there are inconsistencys of the poly curing fully. The best results I have had is pore filling with west systems, then spraying the iso sealer, then the poly top coats. I now sub all my finishes out but if I were to start spraying again I would agree with Tim and use the chemical cured poly. I like the fact that the chemical cured would cure fully. But both ways can produce a great finish. Best of luck.
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