Our PVC TARPULIN(PVC TARP) are made of high quality over 600 grams per square meter (about 20 oz. per square yard) PVC Coated Polyester Fabric which is the standard type widely used by most shipping lines and container owners (leasing companies) for open top container repairs and mantainance. contact us by: eva@containerplywood.com for any spare parts you would have interest!