So I scored some fabric and read that if it puddles into a brown gooey substance when burned it could be polysil...mine did this, some lady snatched up most of it (she said she wanted to make skirts and summer clothes ;{)but, I got about 2 yards in dark grey and 2 yards in an olibe color. Is this "brown gooey puddle test" correct or is this something else? I will be glad to score some for someone was in the 1.00 a yard section b/c they had no idea what it was.