Profiles with metal insert - Side sealing part

Frequently Asked Questions

• What materials are used to manufacture sealing profiles?

  The company processes rubber (EPDM and NBR), silicone (VMQ) and plastics (PVC, TPE, LD/HDPE). From rubber it manufactures both compact and cellular (foam) profiles, and for silicone also solid and microporous versions — always according to the required resistance and application.

• What is the difference between EPDM and NBR sealing?

  EPDM is resistant to weathering, ozone and UV radiation, making it suitable for outdoor applications in construction and automotive. NBR, on the other hand, is resistant to oils and fuels, so it is used where the seal comes into contact with mineral oils.

• What is the difference between compact and cellular rubber?

  Compact rubber is a solid, dense material for classic sealing against liquids and gases. Cellular rubber (EPDM or an SBR/EPDM blend) is softer, more pliable and lighter — suitable where higher elasticity is needed under lower compression, e.g. for door and window seals.

• Is silicone sealing suitable for the food industry?

  Yes — we also manufacture silicone profiles with FDA certification, making them suitable for direct contact with food. Silicone also withstands extreme temperatures and ozone well.

• What temperature resistance do rubber seals have?

  Both compact and cellular rubber (EPDM/NBR) typically withstand −40 °C to +100 °C. EPDM profiles with metal reinforcement have an extended range of −55 °C to +130 °C.

More frequently asked questions