The Black Stallion SNF16-60 16 Oz Acrylic Coated Fiberglass 60" Width Blanket Roll contains 60” x 50 yards of 0.016" Acrylic coated fiberglass, which has a 1000°F melting temperature, is made of a thinner material and is better for vertical planes making it ideal for MEDIUM DUTY applications which involve sparks and spatter.