Glassfibre Fabrics

Supplied on roll usually 1m wide in grades of various thickness from 300g - 1000g per m². It is not twisted is easier to wet out and drapes fairly well. As it cost less than fabric it is often used for boat building in conjunction with CSM as a simple means of adding bulk to increase stiffness. Fabric laminates use approx. 1kg resin to 1kg fabric.

This is simple woven cloth in tape form supplied in roll widths of 25mm to 150mm weighing 175g m². Open weave is the most common and easiest to saturate with resin but close weave holds its shape better. Used as a convenient to handle repair bandage.

Cloth is made from "Yarn" (twisted glass filaments) generally to produce a lightweight laminate with uniform thickness from approx. 100g per m². Fabrics will flex more than CSM before breaking but are not as rigid. The best strength comes from the thinnest cloth with the tightest weave which tends to make them difficult to wet out and so for fabrics above 275g per m² woven roving is used. Adhesion between 2 layers of fabric is poor and should be avoided. Bonding is improved with thicker cloth and fewer layers or combining with CSM.

Cloth is made from "Yarn" (twisted glass filaments) generally to produce a lightweight laminate with uniform thickness from approx. 100g per m². Fabrics will flex more than CSM before breaking but are not as rigid. The best strength comes from the thinnest cloth with the tightest weave which tends to make them difficult to wet out and so for fabrics above 275g per m² woven roving is used. Adhesion between 2 layers of fabric is poor and should be avoided. Bonding is improved with thicker cloth and fewer layers or combining with CSM.

Cloth is made from "Yarn" (twisted glass filaments) generally to produce a lightweight laminate with uniform thickness from approx. 100g per m². Fabrics will flex more than CSM before breaking but are not as rigid. The best strength comes from the thinnest cloth with the tightest weave which tends to make them difficult to wet out and so for fabrics above 275g per m² woven roving is used. Adhesion between 2 layers of fabric is poor and should be avoided. Bonding is improved with thicker cloth and fewer layers or combining with CSM.

Twills have one or more warp fibres alternatively weaved over and under two or more weft fibres giving a diagonal rib or zig zag style pattern. Superior wet out and drape over equivalent weight plain weave with only a small reduction in stability.

Biaxial fabrics are 2 layers, unwoven, lightly stiched, orientated +/- 45°. Available in 430g/m2, 600g/m2 and 800g/m2. Roll width 1270mm.