Maxxam™ FR flame-retardant polyolefin compounds and masterbatches meet stringent flammability performance requirements defined by industry agencies, including Underwriters Laboratories UL 94 V-2, V-0, and 5VA performance ratings. In addition, many compounds in the Maxxam FR portfolio offer elevated Relative Thermal Index (RTI) ratings. PolyOne PE Concentrate 1 is designed to impart good flame retardancy to low and high density polyethylene.Letdown ratios will vary from one grade of polyethylene to another. The following are typical starting point formulations: 7 - 13 parts by weight of Low Density Polyethylene-,6 - 10 parts by weight of High Density Polyethylene-to 1 part of PolyOne PE Concentrate 1. When this concentrate is letdown at the proper ratio the resulting materials can achieve flame retardancy equivalent to the requirements of the UL-94 V-2 or VTM-2. Products manufactured with PE Concentrate 1 should exhibit good heat sealability and low FR migration. |