Does Ultraviolet from the sun affect Precision Board?
Yes. Left in the sun unpainted, PB will start to discolor and turn brown in about 48 hours. Left totally unprotected PB will continue to turn brown and breakdown from UV at about 1/32″ pre year. This means about 1″ of deterioration every 32 years. Obviously deterioration is not a problem but the brown color is not a pleasing site. However, just under the brown surface the cell structure is unaffected and ready for primer/paint. Keeping the painted surface looking good will assure a very long service life.
