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Glass Fab Fiberglass Mesh

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  • 36" Wide Roll of Glass Fab
  • 3" Wide Roll of Glass Fab with Adhesive Backing
Unit Of Measure:

 Product Description

Glass Fab is a fiberglass resin coated fiberglass scrim that is designed for use with tar or asphalt based waterproofing compounds and for use with surfacing mastic used on insulated indoor, outdoor and underground piping, tanks and other mechanical equipment. It has high tensile strength and is dimensionally stable. It will not burn, rot, mildew, or decay. It is flexible and resistant to acid and alkali.

Glass Fab comes in two colors: white and black and two sizes 3" x 150' and 36" x 150'.


COLOR: White or Black
WIDTH: 3" or 36"
LENGTH: 150 feet
GRID: 10 x 10

3" Wide Rolls have an adhesive backing to allow a tight spiral around piping without telescoping or loosening.


  • Put a base coat of mastic (trowel/brush) on a section of insulation
  • Cut a piece of Glass Fab long enough to allow an overlap
  • Wrap the Glass Fab around the pipe/vessel making sure the mesh is flat without bubbling or wrinkling
  • Apply mastic around the overlaps to provide adhesion
  • Apply a top coating to fully encapsulate the Glass Fab


  • A base coat of mastic is option as the 3" wide rolls are self adhesive
  • Spiral the Glass Fab around the fitting
  • Apply a mastic until the Glass Fab is fully encapsulated

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