Labels:bulletin board | hakham | monitor | sky | window OCR: FIMSH WARRANTIES Finish 'chalking 18 another measurement of finish performance. Chalking 1S the result ofa breakdown of carbon bonds in the finish. Chalking 1S rated on a scale from 1 to 10.A higher number rating connotes better performance. 20-year performance rating for Kynar 1S or better 20-year performance for poly vester is 5 or better. Coating thickness critical to proper finish performance connote polyester
