At ECATEC, we specialise in manufacturing rubber and silicone seals such as gas and smoke evacuation joints, sealing gaskets, flat gaskets and O-rings.

Gas and smoke evacuation joints (chimneys)

Silicone seals for gas and smoke evacuation are used in the fumes/air exhaust/intake ducts consisting of 2 concentric tubes. The inner and outer tubes are generally made of polypropylene or stainless steel. These seals are pressure-resistant for the exhaust gas discharge.
The manufacturing process starts with an extruded profile and joined with silicone adhesive or vulcanised joints forming ring joints.
Both the RAU-SIK 8508 material combination and its bonding are TÜV certified (according to DIN EN 14241 Part 1 200 W2 K2 I).
This is an accreditation from an organisation independent of ECATEC quality requirements.
Together with its customers, Ecatec develops new profile sections and various diameters to ensure air tightness requirements.

Sealing gaskets (Industrial drums)

Cellular gaskets are used in situations in which differences in material tolerances must be absorbed, or when the material is significantly compressed and must have a good recovery.
Cellular rubbers (Silicone, EPDM, and SBR) and their versatility in densities, shapes and colours allow us to manufacture it for many different applications.
The type of polymer to be used is determined by the substances coming into contact with it and the specific applications.
Among them, we highlight the cellular gaskets for drums from 25 to 220 litres that meet the strictest EU standards for packing and the regulations of French Order of 9th November 1994 and Spanish Royal Decree 847/2011, concerning rubber materials in contact with food.

Flat gaskets

Flat gaskets or sealing gaskets guarantee the retention of all types of gases or liquids when applied between two flat surfaces.
Flat gaskets are manufactured in various processes according to quantities, materials and dimensions.
a) Starting with an extruded pipe.
b) Starting with a die cut sheet.


Considering the preferred seals, the so-called O-rings are rings of a circular cross-section in different rubbers according to their application.
Our O-ring manufacturing process is based on an extruded O-ring cord, joining the ends by vulcanisation or RTV contribution, achieving a strong and durable bond. For that purpose, the circumference is cut to the required length and joined by the previously overlapping ends.
This method leads to significant cost savings in moulds, enables manufacture of large diameters and sections, and speeds up the manufacturing time.

Do you need a custom part?

At ECATEC, we profile it for you