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Product Details

This standard 12 oz double Bias fiberglass cloth made by Vectorply is an E-BX 1200-10 (+/-45deg) with a total weight of 12.54 oz/sq.yd (425 g/sq.m). This high quality biaxial fiberglass cloth provides added strength with less additional weight than thicker 17 oz Biaxial glass.

This mid-weight fiberglass cloth is ideal for adding strength with minimal weight, allowing for multiple layers.

The weave is retained by a thin polyester stitching which holds the perpendicular 45 deg tows into place without affecting structural integrity.

This 12 oz cloth impregnates easily and is excellent for small to medium size glassing jobs which focus on strengthening a surface while adding minimal weight. Experience fantastic results while used during wet lay-up, vacuum bagging, or infusion.

This cloth is sold by the yard or roll (196 yd) and is 50" wide.

Tech Specs
Ultimate Stress E-BX 1200 Resin Infused E-BX 1200 Open Mold
Longitudinal Tensile74 KSI53 KSI
Longitudinal Compression74 KSI53 KSI
Transverse Tensile74 KSI53 KSI
Transverse Compression74 KSI53 KSI
In-Plane Shear19 KSI13 KSI
Longitudinal Flexion88 KSI64 KSI
Transverse Flexion88 KSI64 KSI
Info & Guides
*Please specify if continuous lengths are required. This is usually the standard for all of our composites, however when reaching the end of a roll, orders may be completed in multiple lengths to total the ordered quantity.

Technical Information


  • Resin infused laminate made with poly / vinyl ester resin blend
  • Open mold laminate made with poly / vinyl ester resin blend
  • All standard reinforcements should be infused with a flow aid or Vectorfusion reinforcements.

Reviews for Fiberglass Cloth - 12 oz Biaxial

3 of 3 Reviews

February 18, 2021

I would & will use again
By Farm 1991 from Fond du Lac, WI

Verified Purchase

Replacing transom in fiberglass boat

Bottom Line Yes, I would recommend to a friend

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April 19, 2020

Probably not
By Jay from South Coast

I bought 20 yards of this glass to cover the deck of a sailboat I am building. The cloth has multiple "miswoven" areas, areas that one or two fibers are missing. Not likely to effect the overall strength of the deck but makes additional work filling the voids . Jamestown shipped promptly and was well packaged as usual!

Bottom Line No, I would not recommend to a friend

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April 10, 2018

By Peter from Osterville

So this vectorply glass is very thick and hard to infuse the resin into. This glass also distorts very easily, careful when you lay it out. Make sure you are using the resin at temperature that make it as thin as possible, that will make it's absorption into the cloth much easier. I would be careful to use a medium to slow setting epoxy or resin.

Bottom Line No, I would not recommend to a friend

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