Seal-Jet materials

SEAL-JET MATERIALS

Below we present the range of basic materials which we use in our production using the SEAL-JET technique.

We divide materials by their properties into 4 main categories:

Polyurethane ompounds
Rubber compounds
Plastics
PTFE compounds

If you are interested in other materials that are not on our website, please contact us, we will provide a full range of available products.

Contact

POLYURETHANE COMPOUNDS

PU 93 green
H-PU green is a versatile sealing material for many applications. This material has very similar mechanical properties to red H-PU. When using hydraulic fluids, oil-in-water emulsions and native fluids the temperature should not exceed +60°C.
- Hardness: 93 ±2 Shore A
- Min./Max. temperature: -30ºC / +110ºC
- Resistant to: oil, ozone, microbes
- Not resistant to: concentrated acids, concentrated alkalis, concentrated alcohols and aromatic solvents
SL PU 96A and 55D graphite
SL-PU material is polyurethane filled with solid lubricants. Mainly used for dry-running in pneumatics.
- Hardness: 96 +/- 2 Shore A or 55 +/- 2 Shore D
- Min./Max. temperature: -20°C / +110 °C
- Resistant to: oil, hot water, ozone
- Not resistant to: concentrated acids, concentrated alkalis, concentrated alcohols and aromatic solvents
H-PU 55D and 72D yellow
This versatile material is often used to manufacture piston and rod seals. It is easy to process, very flexible and has excellent resistance to high pressure.
- Hardness: 55 ±3 Shore D
- Min./Max. temperature: -20°C / +115 °C
- Resistant to: oil, petrol, hot water, microbes
- Not resistant to: concentrated acids, concentrated alkalis, concentrated alcohols and aromatic solvents

H-PU 95 red
H-PU red is a versatile sealing material for many applications. It is characterised by a wide operating temperature range, high flexibility, very good resistance to abrasion and extrusion. Its machinability is described as excellent.
- Hardness: 95 ±2 Shore A
- Min./Max. temperature: -20°C / +115 °C
- Resistant to: mineral oils and fats, hydraulic fluids, petrol, hot water up to +90°C, hot air, ozone, synthetic and native esters
- Not resistant to: concentrated acids, concentrated alkalis, concentrated alcohols and aromatic solvents, hot steam, alkalis, amines
H-PU 95 FDA bright red
H-PU bright red is a versatile sealing material for many applications. It is characterised by a wide operating temperature range, high flexibility, very good resistance to abrasion and extrusion. Its machinability is described as excellent. FDA approved - Certificate: EU1935-2004
- Hardness: 95 ±2 Shore A
- Min./Max. temperature: -20°C / +115 °C
- Resistant to: mineral oils and fats, hydraulic fluids, petrol, hot water up to +90°C, hot air, ozone, synthetic and native esters
- Not resistant to: concentrated acids, concentrated alkalis, concentrated alcohols and aromatic solvents
LT-PU blue
LT-PU plus is a new solution for significantly lower temperatures. Especially with mobile hydraulics, it is not obvious where the equipment will be used. The operating temperature range is -55°C to 110°C. In addition, it is more rotatable than LT-PU.
- Hardness: 94±2 Shore A or 49±3 Shore D
- Min./Max. temperature: -55 / +110 °C
- Resistant to: oil, water, ozone, microbes
- Not resistant to: concentrated acids, concentrated alkalis, concentrated alcohols and aromatic solvents

RUBBER COMPOUNDS

FPM 82 brown
FPM brown is resistant to hot air up to 300°C for short periods. It also has high chemical resistance, suitable at high temperatures. FPM 82 loses its elasticity at moderately low temperatures.
- Hardness: 82 ± 5 Shore A
- Min./Max. temperature: -20 / +220 °C
- Resistant to: petrol, aliphatic and aromatic hydrocarbons, mineral oils, fats, crude oils
- Not resistant to: glycols, water and steam, liquids containing amines, ketones
FPM 85 black
FMP black is resistant to hot air and many chemicals up to 280°C for short periods. It is slightly harder than FPM brown.
- Hardness: 85 ±5 Shore A
- Min./Max. temperature: -20ºC / +210ºC
- Resistant to: petrol, aliphatic and aromatic hydrocarbons, mineral oils, fats, crude oils
- Not resistant to: glycols, water and steam, liquids containing amines, ketones
FPM 85 FDA brown
FPM 85 Shore FDA brown has the maximum heat resistance among the widespread sealing elastomers. In addition, it is highly resistant to oil and fuel. In practice, the terms FPM, FKM and VITON very often lead to confusion and misinterpretation. All these designations represent one basic material - fluorine rubber.
FPM is available with different fluoride contents. The higher the fluorine content, the better the chemical resistance.
- Min./Max. temperature: -20°C / +220 °C
- Resistant to: Mineral oils and HFD fluids, silicone oils and silicone greases, vegetable and animal oils and fats, aliphatic hydrocarbons (gasoline, butane, propane and natural gas), aromatic hydrocarbons (benzene, toluene), chlorinated hydrocarbons (trichloroethylene, carbon tetrachloride), fuels and fuels containing methanol, ozone and weather conditions
- Not resistant to: polar solvents (acetone, methyl ethyl ketone, ethyl acetate, diethyl ether, dioxane), skydrol 500 and 7000, glycol-based brake fluids, ammonia gas, amines and bases, low molecular weight acids (formic acid and acetic acid), methanol above approximately 40C
MVQ 85 blue
MVQ (silicone) is known for its very low and high operating temperature range. It is characterised by very good stability in hot air for short periods up to 300°C.
- Hardness: 85 ±5 Shore A
- Min./Max. temperature: -60 / +200 °C
- Resistant to: hot air, heat, ageing and ozone, engine and gear oils, glycol-based brake fluids, hydraulic fluids
- Not resistant to: aromatic and aliphatic hydrocarbons and esters, low resistance to lubricants
MVQ 85 FDA transparent
MVQ (silicone) is known for its very low and high operating temperature range. It is characterised by very good stability in hot air for short periods up to 300°C. MVQ transparent is FDA approved.
- Hardness: 85 ±5 Shore A
- Min./Max. temperature: -60 / +200 °C
- Resistant to: hot air, ozone, hot water
- Not resistant to: aromatic and aliphatic hydrocarbons and esters, low resistance to lubricants
EPDM 85 black
EPDM is known for its low tool abrasion and low temperature properties. Very good weather, ageing and ozone resistance.
- Hardness: 85 ±5 Shore A
- Min./Max. temperature: -45 / +130 °C
- Resistant to: ozone, ageing, polar solvents, HFC and glycol-based brake fluids, hot water and hot steam
- Not resistant to: fats, oils, petroleum products

EPDM 85 FDA black
EPDM is known for its low tool abrasion and low temperature properties. Very good weather, ageing and ozone resistance. This EPDM is FDA approved and for this application we recommend a maximum use temperature of 90°C.
- Hardness: 85 ± Shore A
- Min./Max. temperature: -45 / +130 °C
- Resistant to: ozone, ageing, polar solvents, HFC and glycol-based brake fluids, hot water and hot steam
- Not resistant to: fats, oils, petroleum products
NBR 85 black
NBR is characterised by very good elastic properties and high extrusion strength. Also good rotatability and low tool wear. Often used for O-rings, wipers and shaft rings.
- Hardness: 85 ±5 Shore A
- Min./Max. temperature: -30°C / +110 °C
- Resistant to: bad weather conditions, ozone, low and non-polar media, mineral oils, vegetable and animal fats, aliphatic hydrocarbons HFA, HFB, HFC-liquids;
- Not resistant to: polar solvents, concentrated alkalis, concentrated acids
NBR FDA - blue
NBR FDA blue conforms to FDA and EU 1935/2004 requirements.
- Hardness: 80 Shore A
- Min./Max. temperature: -30 / +100 °C
- Resistant to: petrol and oil
- Not resistant to: concentrated acids, concentrated aromatic solvents
H-NBR 85 green
H-NBR has good stability to high-additive oils and a very wide temperature range. It is also suitable for use in water. It is resistant to hot air for short periods of time. This material has increased abrasion resistance while maintaining flexibility.
- Hardness: 85 ±5 Shore A
- Min./Max. temperature: -20°C / +150 °C
- Resistant to: heat, ageing and ozone effects, oil, petrol
- Not resistant to: polar and aromatic solvents, concentrated acids, concentrated bases
H-NBR 90 FDA black
This material is similar to standard H-NBR, but with a hardness of 90 Shore, a little harder than standard H-NBR. It is available in black to avoid confusion between materials.
- Hardness: 90±5 Shore A
- Min./Max. temperature: -20 / +150 °C
- Resistant to: petrol and oil
- Not resistant to: concentrated acids, concentrated aromatic solvents
T-NBR - black
T-NBR is the right choice for low temperature applications. It operates in a temperature range from -50°C to 110°C. It is resistant to mineral oils and fuels, but is not resistant to concentrated acids, alkalis and polar solvents. T-NBR offers less flexibility due to its properties in low temperatures. Its oil resistance is also not as good as with NBR.
- Hardness: 80±5 Shore A
- Min./Max. temperature: -50 / +110 °C
- Resistant to: petrol and oil
- Not resistant to: concentrated acids, concentrated aromatic solvents

PLASTICS

PA6G 85 natural white
Polyamide is characterised by high rigidity, hardness and high strength. It has excellent sliding properties and good temperature resistance.
- Hardness: 85 ± 3 Shore D
- Min./Max. temperature: -45 / +100 °C
- Resistant to: ketones and esters, solvents, fuels, greases and natural oils, mineral oils and fats, alcohols, aliphatic and aromatic hydrocarbons
- Not resistant to: strong acids and alkalis
POM 85 FDA natural white
POM 85 white is a material with high stiffness, excellent wear resistance and high hardness. It is mainly used in gears, bearings and automotive parts as well as any other precision parts. This product is approved by the FDA.
- Hardness: 81 ± 3 Shore D
- Min./Max. temperature: -45 / +100 °C
- Resistant to: water, alkalis, fuels, alcohol, solvents
- Not resistant to: ethers, oxidising chemicals, mineral acids, less resistant to heat and UV

PA6 + MoS2 black
Polyamide PA6 + MoS2 (molybdenum disulphide) is a polyamide obtained by extrusion; molybdenum disulphide gives the material a black colour. Thanks to added molybdenum disulphide, compared to the basic version, it has better sliding properties, better abrasion resistance, increased rigidity and dimensional stability of parts made of the material. Polyamide with molybdenum disulphide has a much longer durability when used outdoors than the basic type of extruded polyamide.
- density 1.14 g/cm³
- long-term operating temperature 100°C
- short-term operating temperature 160°C
- melting point 220°C
- Resistant to: many oils, fats and fuels
UHMW-PE natural
Ultra-high molecular weight polyethylene has high abrasion resistance, very good impact resistance and is resistant to oxidation. It is particularly suitable for water-based hydraulics and ceramic coatings and is widely recognised as safe for use in the food industry.
- Hardness: 61±3 Shore D
- Min./Max. temperature: -200 / +80 °C
- Excellent chemical properties
- Good corrosion resistance
- Good sliding and non-stick behaviour
- High resistance to abrasive wear
- Excellent impact resistance / high resilience to shock and impact stress
- Applications in the food industry: widely recognised as safe for use in the food industry

PTFE COMPOUNDS

PTFE +40% bronze
PTFE 60B consisting of 40% bronze and 60% virgin PTFE has excellent sliding conditions, wear properties and increased strength. Bronze PTFE has thermal and electrical conductivity.
- Hardness: 60 ± 3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: hydraulic fluids, alkalis, ageing and weathering, nearly all acids and caustic solutions
- Not resistant to: molten alkali metals, halides, elemental fluorine, CF3
PTFE +20% carbon
PTFE 60 is filled with 25% carbon and provides the material with excellent wear properties, suitable for use in water and has better creep resistance and hardness.
- Hardness: 67 ± 3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: hydraulic fluids, alkalis, ageing and weathering, nearly all acids and caustic solutions
- Not resistant to: molten alkali metals, halides, elemental fluorine, CF3
PTFE +15% Glass +5% MoS
PTFE GlasMoS2 graphite is filled with 15% pure ground glass fibre and MoS2. This gives the material good strength. Ideal for hydraulic applications with medium pressures.
- Hardness: 58 ± 3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: hydraulic fluids, alkalis, ageing and weathering, nearly all acids and caustic solutions
- Not resistant to: molten alkali metals, halides, elemental fluorine, CF3
PTFE turquoise
PTFE D05 turquoise has very good sliding properties, has the best chemical resistance and is non-flammable. Due to its low elasticity it is not suitable for high mechanical loads. Note that it has higher strength than virgin PTFE due to the pigments.
- Hardness: 57 ± 3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: hydraulic fluids, alkalis, ageing and weathering, nearly all acids and caustic solutions
- Not resistant to: molten alkali metals, halogenides, elemental fluorine, CF3
PTFE pure
Virgin PTFE turquoise has very good sliding properties, has the best chemical resistance and is non-flammable. Due to its low elasticity it is not suitable for high mechanical loads. It should be noted that virgin PTFE has poor thermal conductivity, a high coefficient of expansion and low load carrying capacity as a bearing material.
- Hardness: 55 ± 3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: hydraulic fluids, alkalis, ageing and weathering, nearly all acids and caustic solutions
- Not resistant to: molten alkali metals, halides, elemental fluorine

PTFE +25% Glass
PTFE 25% Glass contains 25% pure ground fibres and 75% virgin PTFE. It is available in grey with a hardness of 60 Shore D. This material offers higher stiffness and better abrasion properties than virgin PTFE. It is not suitable for soft metal equivalents and has limited use in hot water.
- Hardness: 58±3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: almost all chemicals
- Not resistant to: halides, elemental fluorine, CF3, molten alkali metals
PTFE +15% Graphite
PTFE graphite has a Shore D hardness of 60 with 15% graphite and 85% virgin PTFE and is available in dark grey. PTFE graphite has one of the lowest coefficients of friction and better conductivity. Wear properties are particularly excellent when working with soft metals. It is only susceptible to attack by strong oxidising media.
- Hardness: 60±3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: almost all chemicals
- Not resistant to: halides, elemental fluorine, CF3, molten alkali metals
PTFE PEEK cream
PTFE PEEK contains 90% virgin PTFE and 10% PEEK. Available in cream colour with a hardness of 60 Shore D. This material is comparable to PTFE Ekonol, but complies with FDA-CFR 21.177.1550 and FDA-CFR 21-177.2415 and meets EU 10/2011 standards.
- Hardness: 60±3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: almost all chemicals
- Not resistant to: halides, elemental fluorine, CF3, molten alkali metals
PTFP Ekonol
This material is available with a blend of 10% Ekonol + 90% virgin PTFE in colour cream. The hardness is 56 Shore D. PTFE Ekonol has good abrasion and extrusion resistance, especially in dry conditions.
- Hardness: 56±3 Shore D
- Min./Max. temperature: -200 / +260 °C
- Resistant to: almost all chemicals
- Not resistant to: halides, elemental fluorine, CF3, molten alkali metals