Style 7781 Fiberglass Cloth with 497A Silane finish - Fiberglass Cloth Supply and Education

Style 7781 is one of the most predominately used satin weaves in the Aerospace Industry.  We sell a lot to other creative users for a huge variety of projects. 7781 is an 8.95 oz/sq yd 8 harness satin weave with a thread count of 57 x 54 ends/inch and uses the DE 6 micron glass filament versus the 9 micron G filament in style 1581.  The smaller filament would suggest a higher tensile strength of course.  The ECDE 75 1/0 flat yarn used in both the warp and fill, the thread count of 57 x 54 ends per inch and the 8 harness satin weaver makes for a very efficient use of space.  7781 for the regular guy doing an open lay up without vacuum bagging or using a thin resin will have some problems with air entrapment.   Some solutions to this problem outside of vacuum bagging are with the use of peel ply and maybe some combining with other more open weave fabrics.