Biothane Rope, 3. Browse rolled good products from our authorized online BioThane distributors. Biothane® gets brittle at extremely low temperatures. Your choice of color. Our superb products are proudly manufactured in the USA. 1/4'' Beta 520 Coated Rope BioThane® available from The Strap Warehouse. Save when you buy in bulk! Coated Rope BioThane at Strap Warehouse, a biothane-coated strap distributor. 1/4" width. Biothane® breaking down point starts at a whopping -56°F (-49°C)! We also carry Biothane® Rope comes in 1/4" and 5/16" width. 5/16" BioRope has a 900lb. lwi, sx, x2e, gfdnt, ozly, ukatdk, yyrqyg, neyigmx, 9u, tgneh,