O-ring seal

circularroundbonded

The cord ring is a circular shape extruded profile, which is manufactured under a strict control of tolerances to achieve a quality product, and in the cross-sections (d2) of O-rings of greater demand. The cord ring allows to produce virtually any seal dimension without the need to invest in an expensive tooling for its molding. Once the required length of cord ring is known, it is cut and its ends are bonded with adhesive or by hot vulcanization. It’s an excellent solution for the static sealing of covers and allows to install O-rings to the required size in each equipment (up to several meters in diameter). The variety of materials is wide: - Acrylonitrile/butadiene rubber (NBR) and Shore A hardness from 60 to 90. - Fluorine rubber (FPM) or Viton™ and Shore A hardness from 60 to 90. - Silicone rubber (methyl vinyl VMQ) and Shore A hardness from 60 to 85. - Ethylene/propylene/diene terpolymer (EPDM) and Shore A hardness from 60 to 75. - Chloroprene rubber (CR) and Shore A hardness from 60 to 75. - Hydrogenated acrylonitrile rubber (H-NBR) and Shore A hardness from 60 to 90. - Etrafluoroethylene and propylene copolymer (FEPM) or Aflas® and Shore A hardness from 60 to 90. - Spongy materials: CR, NBR, EPDM and VMQ. - Virgin PTFE. Some of these elastomeric materials have certifications required by the Food & Beverage, Pharmacy, Cosmetics, Health and Hygiene, Medicine, Biotechnology, Chemical, Petrochemical, Gas, Aeronautics and Electronics industries, among other.