Joining profiles into O-rings

Joining profiles into O-rings is an additional production process by which we can produce a seal in the shape of a circle without the need to produce molds. Of course, this process is only suitable for static-fill seals, it is not suitable for seals that are dynamically stressed. On the other hand, in some applications it is not necessary to use molded products and thus save on the production mold. Due to our commitment to the complex supply of seals, we can cover both seal needs – both static and dynamic – with our production capabilities.

The connection of profiles into o-rings currently takes place in two forms:

  • by gluing joints
  • by vulcanizing joints

Bonding joints

  • in this production process, the required length of seal is cut according to your requirements (the joint can be either perpendicular or oblique to ensure stronger adhesive joints)
  • then the profile is cleaned and, if the material requires it (eg silicone seals) a primer is applied (a substance ensuring significantly better tack of joints)
  • the next step is the gluing with a second glue.
  • the last production step is to check the joint by a tensile test

Vulcanized joints

  • this process is much more difficult
  • as with gluing the joints, the first step is to cut to the required length
  • then comes the cleaning
  • preparation of raw mixture for vulcanized joint
  • vulcanization itself
  • modification of vulcanized joint
  • joint inspection and testing

The whole process takes place on special single-purpose vulcanizing presses. The great advantage of this process is the improvement of the dynamic properties of the joint and the possibility of producing o-rings from 350 mm to several meters

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