Seal-Fast Door Seals and Trim-Fast Edge Trim are now Recognized Components, approved by Underwriters Laboratories (UL) for EPDM gasket materials under UL50 and UL50E standards. Designed by Device Technologies (DTi), they help protect critical equipment from dust, moisture, and high temperature variations. Such equipment includes telco switches, data-center racks and chassis, and routers under NEMA standards. DTi seals and trim can also be used in truck bodies and enclosures for generators and inverters. Automatic upgrades are available for products that already use DTi seals or trim.