Polykon Polymer offers polypropylene fabric rolls which is ideal for many purposes. Some of the main uses for PP woven fabric rolls are: Bale wrap, pallet sheets, pallet lining, and various reinforcements. We can tailor make fabric according to your usage and specific needs. Some of the key points to look for when evaluating Woven Polypropylene fabric are Denier and GSM. Denier is a good measure of strength and durability of a material. It is a unit of measurement describing the linear mass density of the material, calculated by the mass in grams of a single 9,000 meter strand. For example, a 600 denier fabric will be stronger than a 400 denier fabric. GSM stands for grams per square meter. Like denier, this is a measure of density, but this refers to the weight in square meters. GSM roughly correlates with strength in that a material with a higher GSM is generally stronger and more resistant to abrasions, tears, and damage.