The warp count is the first number followed by the fill count. Note that all fabrics listed are stronger the length of the bolt than across the bolt. Fabrics balanced in strength may be used on the bias for torsional stiffness. Unbalanced fabrics may cause warping if used on the bias. Thickness is the thickness of the dry cloth.
Finish refers to the chemical treatment making it compatible with other materials.
Both Silane and Volan finishes are epoxy compatible. Volan is recommended for polyester compatibility. Volan is softer than some Silane finishes improving the drapability characteristics of the cloth.