Thanks to its elasticity, rubber is a widely used material in seals. Seals made of rubber are ideally suited for a variety of applications, including the automotive industry, construction and mechanical engineering.
Rubber’s versatile features include flexibility, elasticity, strength and friction. Rubber also prevents vibration and is airtight and watertight. It has excellent strength, retains its functionality under extreme temperature variations, and is an electrical insulator. Rubber’s electrical conductivity, fire resistance and other features can be improved if necessary.
Rubber’s adhesion to metals, plastics and textiles adds to its usability in functional sealing solutions.
Our most widely used rubber types are EPDM, CR and NBR. Our selection also includes fireproof types which conform to the most recently issued fire standards.
The applications of synthetic EPDM include seals, profile strips and cable coatings. Due to its long lifespan and excellent weather, thermal and chemical resistant qualities, EPDM is the most widely used material in sealing solutions.
EPDM rubber retains its flexibility in low temperatures and remains functional in high temperatures, hot water and steam. EPDM is highly resistant to water-based chemicals, as well as to solvents. It is available on a wide hardness scale: 25–90 ShA.
EPDM rubber is available in types that comply with the EN 45545-2 standard for rail applications, as well as with the EN 681-1 standard for pipe joint seals in water and drainage applications.
Our selection includes self-extinguish EPDM rubber in compliance with the following standards:
DIN 5510 Part 2:2003-09: Combustibility class: S4, Smoke development class: SR 2, Dripping class: ST2
UL 94 Vertical burning test; 94V-0
EN 45545-2: 2013, R22, R23; HL1–HL3
ECE-R118 Appendix 8
NFF 16-101 F1 – I2
BS6853 Table 7 Cat. II
EN45545-2 classification R22/23, HL1-3
Chloroprene rubber, also known as ‘neoprene’, is a synthetic rubber developed for conditions that require chemical resistance in particular. Chloroprene is a highly durable material: it is strong, flexible and has excellent ozone and weather resistant qualities.
Applications of CR rubber include seals, bellows, V-belts, conveyor belts and vibration absorbers. CR is highly resistant to vegetable oils and oils of animal origin.
NBR rubber is developed for conditions requiring a high degree of oil resistance. In addition to oil, NBR is highly resistant to liquid fuels and most solvents. Thanks to its excellent resistance to oil, NBR rubber is used in a variety of applications, including seals and protective beams used in municipal infrastructure and automotive technology.
SBR, or styrene-butadiene rubber, is a general-use rubber, used in applications where no special qualities such as resistance to oil are required. SBR rubber was originally developed as a substitute for natural rubber. Its advantages include excellent viscosity, wear resistance and frost resistance. As a result, SBR rubber is used extensively in typical rubber applications such as tyres, rubber footwear, band conveyors, hoses and profile strips.
IR rubber, or isoprene rubber, is a synthetic substitute for natural rubber, suitable, as is, for a variety of applications. It is most often used in mixtures with other rubbers. If SBR rubber is blended with IR rubber, its tensile strength and initial tearing strength, as well as its flexibility, will improve.
We manufacture all our seals and profiles using an extrusion technique. The production processes change raw material into a homogeneous product with a desired cross section by forcing the material through extruder in a controlled manner and under controlled conditions. After the material is forced through the extruder, it is vulcanised, transforming it into an elastic product capable of retaining its form.