in half making a sharp crease the folded film was then placed between two plates and an eight pound weight was placed on the plate for 2 hours to make the crease of the film even sharper after that time the film was unfolded inspected for breakage at the crease and lightly stretched the film did not break either by creasing it or by lightly stretching it indicating that the coating film had excellent mechanical properties several pieces of fiberglass insulation weighing 53 grams per square foot having the dimensions of 8 u00d7 9 u00d7 3 4 inches each were roller coated with the coating composition of example 1 using a metal roller to give a dry add on of coating of 8 grams per square foot the coated pieces of fiberglass insulation were then dried in an oven at 325 u00b0 f for 5 minutes after which each piece was covered by a smooth strongly adherent coating the coated fiberglass insulation pieces were then subjected to the following tests a 11 2 u00d7 8 strip of a coated fiberglass insulation piece was positioned next to a propane torch having a 2 inches long blue inner flame in such a way that the tip of the blue inner flame touched the surface of the test piece at a 30 degree angle after a 60 second exposure to the flame the test piece was removed the test piece did not glow or burn also called having no 34 afterflame 34 and it gave of no visible black smoke a test piece was.