E-Glass cloth is woven from fine yarns of twist and ply construction with the actual glass being a lime-alumina borosilicate glass of low alkali content. This glass composition offers ample flexural and tensile strengths, high chemical stability and high moisture resistance. The cloth weave allows it to conform to curved surfaces with minimum fitting. E-Glass cloth if categorized by weight per square yard and is sold by the running yard with a 3 yard minimum.