Last Update: 18 June 2017
E-Glass is the standard fiberglass reinforcement material. S-Glass looks and handles exactly the same but is made from a higher-strength fiber which gives about 40% higher tensile strength, 20% higher modulus, and greater abrasion resistance. All have an aerospace-grade silane finish that is compatible with polyester, vinylester, and epoxy resins. This finish is superior to Volan and many other silane finishes in that it has longer shelf life and is less affected by moisture. If you are comparison shopping be certain you are looking at comparable materials. For a more in-depth discussion of fiberglass yarns, fabrics, and finishes, please see our Fabric Information page.
Our primary source for fiberglass cloth is BGF Industries, though we do use other mills for some materials. You may contact BGF for detailed information about their products. A Material Safety Data Sheet (MSDS), covering all styles of glass fabric, is available on line.
We stock the following styles of E-Glass fabric:
|E-Glass||1-4 Yd||5-19 Yd||>20 Yd||Sm Roll||Lg Roll||500 Yd||1000 Yd|
The general properties of S-Glass are, by way of comparison, described in the E-Glass section, above. The same finish is used and the same MSDS applies. For a more in-depth discussion of the differences between E-glass and S-glass, as well as info on fiberglass yarns, fabrics, and finishes, please see our Fabric Information page. Several of our S-Glass fabrics are 8-harness satin weave construction using very fine yarns. These are not recommended for contact layup because the weave is so tight that it is very difficult to get all of the air worked out.
The styles marked with an asterisk * in the price table are seconds. Generally the defects that exist in second-quality fabrics are very minor and will not affect their use in ordinary laminates such as boats, paddles, auto bodies and the like. However, we cannot guarantee the quality of any seconds; they are sold as-is and, needless to say, must not be used in highly critical applications. We buy seconds when they are available. Please check our News Page for updates on availability and pricing of seconds.
We stock the following styles of S-Glass fabric:
|S-Glass||1-4 Yd||5-19 Yd||>20 Yd||Sm Roll||Lg Roll||500 Yd||1000 Yd|
The 6781* material listed above is made with a “direct-sized” yarn so that the fabric does not require the usual heat cleaning and finishing after weaving. This produces a stronger fabric by avoiding the need for cleaning, which would degrade the strength somewhat. The resulting material is an off-white fabric rather than the usual brilliant white of cleaned and finished fabric. It may be used with epoxy and vinylester (as well as a number of other resin systems) but epoxy gives superior results. We stock this material only as seconds, and have found that small defects are not currently circled with a blue felt pen directly on the fabric. For more information please refer to the manufacturer’s data sheet. [PDF, 60 kB]
Please contact us for more information.