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Processing options

EMKA produces rubber profiles, carrier profiles, hollow chamber gaskets as well as lip seals in different degrees of hardness. Loops and roll editing tape, stamped steel and reinforcements of textile fibres can be additionally incorporated. For subsequent processing we can also manufacture fixed lengths, rings and corner frames.

Frames and rings information

Readily customised frames and rings according to customer specifications possible.
We offer numerous processting options for the known profiles in fixed lengths. For frames and rings the butt and corner joints can be glued, film vulcanised or realised by injection moulding (formed corners / end feeds). Possibly arising tool costs needs to be clarified beforehand due to the required assembly option.

Product benefits

‒ The extact and time-intensive mitre-cutting of the gasket or the observance of the given minimum bending radius of the gaskets are not necessary
‒ The assembled frames and rings facilitate the mounting on doors and cabinets frames
‒ No leakiness at butt ends and mitre joints

Glueing

The most simple process is to glue two profile ends. For all rings, vent holes are strongly recommended as the compression force increases in a closed ring A better solution to glueing two profiles is film vulcanization.

Film vulcanising

Film vulcanising is a permanent and durable process. A foil of the same material is inserted between the profile ends that are to be vulcanised. The required time for film vulcanising is longer than for glueing.

Injection moulding

Injection moulding means formed corners and end injection moulding. Injection molding is e.g. a process to produce special corners for frame.

The example next shows a rounded frame while the clamping range is produced rectangular. This option is not possible for vulcanising gasket ends with mitre joint.

Cutting to length

Upon customer request, profiles can be cut and packed online - i.e. in the running production line - or subsequently to lengths between 5 - 500 cm. Angled cuts, mitre cuts and notches are also possible.

Application of adhesive tape

The toolless mounting by gluing sealing profiles is used for more and more applications. Joining very different materials as well as low-stress bonding by means of large-area glued joints are major advantages here. Double-sided adhesive tapes can be applied subsequently for the respective application.

Coating

The natural, high friction coefficients of an elastomer can be significantly reduced with a bonded coating. This operation can be carried out online - in the running production line - or subsequently, for example after corner vulcanization. The coating is transparent and therefore hardly visible.

Flocking

The flock fibres reduce the coefficients of friction, which are very high in rubber, and can compensate for small irregularities and tolerances. Typical applications are, for example, window seals in automotive engineering. Profile flocking changes the optical and haptic characteristics.

Sheathing / EMC sealing

A conductive foil is wrapped around the rubber profile and firmly bonded to the surface. The conductive connection of frame and door reduces electromagnetic interference. The attainable shielding effectiveness depends on numerous influencing factors.