Rubber and silicone from the HÜBNER company

From micro-parts to large door seals – our products made of rubber and silicone.


It all started with rubber for HÜBNER GmbH & Co. KG. Working with a small team in the austere post-war period, Kurt Hübner repaired rubber conveyor belts for nearby coal mines, lime works and cement factories. His small Kassel workshop also took on jobs repairing rubber boots and bicycle tires. Later the portfolio came to include seals and molded parts, and silicone joined rubber in the lineup.

Our current portfolio in the rubber and silicone area extends from molded parts to profiles, from seals to frames, and includes rubber-metal and silicone-metal compounds. These elements are used in the public transport industry and in medical devices. In these different applications, they protect, absorb, seal and insulate – whether as delicate precision components or as gaskets weighing as much as several kilograms.

 

Rubber and its avantages

HÜBNER's rubber compound recipes have gained a strong reputation for their high tear strength as well as good UV and heat resistance. Depending on the customer requirements, they can also be oil and lubricant resistant or fire-resistant in accordance with various standards.

And we are happy to develop new recipes to fulfill the specific wishes and requirements of our customers. On this basis, we have created more than 600 different recipes over time, which we continue to optimize. 

 

Silicone and its advantages

Silicone is exceedingly temperature resistant. It retains its flexibility even in extremely cold conditions and can easily be dyed in various colors. It is frequently used for manufacturing door seals for high-speed trains and in medical devices as a membrane. Our silicone can be produced in accordance with various fire-resistance standards.

Fire Safety standards for rubber and silicone

Our rubber and silicone recipes can fulfill the following standards depending on customer specifications:

  • DIN EN 45545-2: 2013-08
  • DIN 5510-2 (complete)
  • ISO 11925-2
  • EG 95/28; ECE-R 118
  • NF F 16-101
  • ASTM C 542 (NFPA 130)
  • ASTM E 662 (NFPA 130)
  • ASTM E 162 (NFPA 130)
  • BSS 7239 (toxicity)
  • BS 6853, Annex D.8.3 (small-scale test)
  • BS 6853, Annex B (toxicity, Rmax)