Style 7781 is an 8.95 oz 8 harness satin weave fiberglass fabric. This is an E-glass that's used extensively in the aerospace industry. The count is 57x54 ends/in.  A couple notes on the satin weaves.  There's several styles of fiberglass fabrics in this same weight and weave range.  The first in this category was style 181, then 1581 and the latest of this range is the 7781. And there was also style 7581. There's not a lot of difference in the various numbers just mentioned.  The biggest one is how much warping the yarn used has.  1581 was the standard in the industry.  7781 has a flatter yarn and it would be assumed better properties.  These are all E-glass.  The S-2 glass versions are 6581 for 1581 and 6781 for 7781.  JPS generally puts the number 1 in front of their S-2 glass styles like 16781 which would be the S-2 glass version of 7781 for them.  Most of these weaves are originally intended for the aerospace market in making radomes and other aircraft parts

oVolan is the softest finish there is.You'll be pleased with it's drapability.  It is a very smooth fabric and very conformable.   The downside of 7781 is it is a little tougher getting the bubbles out and takes a little more work compared to open tooling type weaves and twill weaves like 7725.  This soft 7781 is available in 20 rolls rolled on 2" schedule 40 PVC pipe.  The rolls are packed in plastic, packing foam and corrugated wrap

 The special on the 20 yard roll includes shipping to the 48 continental US States.

 Stock comes and goes.  For further information call us at 1-800-218-1375