Data centers and server halls house critical communication infrastructure and must withstand both fire and water. Still, extreme weather events and flooding cause outages worth hundreds of thousands of dollars. Hebei Shida Seal Group manufactures UL 94 HB flame retardant rubber gaskets, EPDM rubber extrusions, fire resistant rubber seals, flame retardant door gaskets, HVAC system sealing and insulation for the data center’s for data centers and server halls worldwide against fire, water ingress and air leakage.
About UL 94 HB?
UL 94 HB is a flammability standard from Underwriters Laboratories (UL) that defines a horizontal burn (HB) test for a specimen that needs to resist electrical and electronic combustion. It is part of the larger UL 94 flammability standard for plastic materials and accounts for both the burn rate and a specimen’s thickness. UL 94 HB testing is performed with a 20 mm high burner flame for a total of 30 seconds. Prior to testing, the material is kept for 48 hours at 23° C (73.4° F).
The table below lists the test criteria.
| Test specimen thickness 3 to 13 mm | ≤ 40 mm/min |
| Test specimen thickness < 3 mm | ≤ 75 mm/min |
| Flame is extinguished before first mark | = 0 mm/min |
Why use UL 94 HB EPDM rubber gaskets?
UL 94 HB EPDM rubber combines proven UL flame resistance with the strong environmental resistance of an ethylene propylene diene monomer (EPDM) elastomer. UL 94 HB EPDM gaskets can resist the spread of fire and are self-extinguishing. EPDM rubber is also electrically insulating and provides good strength, excellent heat resistance, and has a typical working temperature range from 40°C to 120°C.
About Hebei Shida Seal Group
We are an IATF 16949:2016 certified custom manufacturer of rubber gaskets and seals. Rubber materials include closed cell sponge rubber, EPDM, neoprene, Nitrile, and silicone. Suitable for various OEM and MRO markets, including automotive, appliance, electrical component and enclosure, generator, HVAC, industrial, lighting, marine, medical, mining, and power equipment applications.
Hebei Shida Seal Group has earned a reputation for providing high-quality, reliable custom extruded rubber gaskets designed to meet or exceed application requirements. Our expertise in providing rubber extrusion solutions to multiple industries provides us with a broad range of knowledge that we apply to every new project. We maintain an inventory of premium materials to choose from, ensuring that we can provide the ideal material for your needs.
All products are manufactured in accordance with the highest available industry standards to ensure the utmost quality and longevity. Our rubber extrusions offer a wide choice of available shapes, cost-effective production options, and limited production waste. Our team is eager to use our expertise to provide custom rubber extrusion products that meet or exceed the expectations of our customers.
Hebei Shida Seal Group is uniquely qualified to manufacture EPDM rubber gaskets for your application. Our quality management system is IATF 16949:2016 accredited. We can provide PPAP Level 3 documents for OEM clients.
If you want to contact us about any issue please call (+86)319 8032626 or send us an e-mail. If you would like to submit a proposal for consideration simply submit a quote.