COLOGNE, Germany—Sonderhoff Chemicals GmbH's flame-proof polyurethane flexible foam seal Fermapor K31-A-45C4-2-UL-FR complies with U.S. fire protection regulation, according to the company.
The product has met the standard UL 94 HF-1 and also has a UL listing for U.S. testing standard UL 50E for switch cabinets and electronic housings in non-explosion-proof areas, the company said. It also has the listing UL 508—the U.S. specification for electric switchgear safety.
Information about the seal's UL-recognized status is available at the UL website.
According to Sonderhoff, Fermapor K31-A-45C4-2-UL-FR, with its HF-1 UL class, achieved the highest fire protection class for polyurethane foams.
The polyurethane foam seal from Sonderhoff is therefore classified as self-extinguishing without burning drips, in accordance with UL94 HF-1, the company said in a news release.