Biothane coated webbing distributors. Beta 580 for Harness Products Look: Leather-like semi-gloss coating. Choose from over 37 colours! International shipping available. Meets FDA skin sensitivity requirements. -made coated webbing developed by the BioThane Coated Webbing Corporation in Ohio. It’s basically a polyester webbing with a Beta 520 for Tack Products The Beta 520 Series is the closest thing to leather in the equine marketplace. Waterproof, durable, stinkproof. The BioThane® Beta 520 standard product is a PVC coated polyester webbing with a matte finish and 'leather' embossed grain surface. Visit Made in the USA, BioThane has a flexible substrate core bonded with a TPU or PVC outer coating for protection. We are an authorized distributor for BioThane®. 080" thick) BioThane® coated webbing is practical for many webbing needs.