Rubber Seals
NBR O-Rings
NBR is the working compound for anything that meets oil or fuel at moderate temperature.
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Industry Application
Rubber Seals and Moulded Parts for Automotive and Vehicle Parts
Vehicle circuits punish general purpose rubber. Fuel, engine oil, power steering fluid, coolant and brake systems each attack a different weakness, and a seal chosen on price alone usually fails on one of them.
The Problem
Industry Pain Points
- Oil and fuel contact that hardens or swells a seal chosen without regard to the medium
- Cold medium sealing in power steering pipes and pumps where the compound has to stay flexible
- Suspension bushings that wear out early and take the whole damper assembly with them
- Rubber to metal parts bought from separate machine shops and moulders with no single owner of the bond
- Seal schedules that mix NBR, HNBR, FKM and EPDM across one vehicle programme
The Requirement
What Buyers Here Need
- Compounds selected against the actual fluid and temperature, not against a stock list
- One supplier able to cover the whole mixed material schedule
- Bushings and anti vibration parts where the metal and the rubber come from the same factory
- Repeatable cross sections batch after batch
Suitable Products
What We Supply Into This Sector
Rubber Seals
HNBR O-Rings and HNBR Seals
HNBR is the compound we reach for when a nitrile seal has to stay reliable in cold medium service.
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Rubber Seals
FKM and FFKM O-Rings
FKM and FFKM sit at the top of the seal material range and are frequently confused with each other.
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Rubber Products
Shock Absorber Bushings and Shocker Bushes
Bonded rubber to metal parts fail at the interface far more often than in the rubber, and split sourcing is why.
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Rubber Seals
Y Seals and Y O-Rings
A plain O-ring is not the right answer for every dynamic duty, which is why the Y profile exists.
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Rubber Seals
EPDM Seals and EPDM O-Rings
EPDM has good weather resistance and unusual versatility, which is why it appears across automotive, electrical and electronic products, daily necessities, sports equipment and mechanised industrial equipment, as well as in wires, cables and high voltage and ultra high voltage insulation materials.
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Typical Application Scenarios
- Automotive oil seals and power steering pipe seals in HNBR for cold medium service
- Fuel system and high temperature engine seals in FKM and FFKM
- Brake and coolant circuit seals in EPDM
- Shock absorber bushings and shocker bushes with rubber moulded onto machined metal
- General oil resistant static and dynamic seals in NBR
What You Get
Delivery Capability
- Mixed material schedules quoted on one purchase order
- Standard AS568 sizes without a tooling step
- Metal parts machined and rubber bonded in house for bushing type parts
How It Runs
From Inquiry to Series Release
Send the drawing, the fluid and the working and peak temperature
Our formula engineers propose compounds and explain the trade offs
Tooling from the AS568 set where the size is standard, or a new tool from our mould workshop
First article moulded and checked before series release
Guides for This Sector
Guide
How to Choose a Rubber Seal Material in Six Questions
Six questions decide almost every seal material choice. Answer them before you ask for a price, and the quotation you get back will be worth comparing.
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Why Rubber to Metal Bonded Parts Go Wrong and How to Buy Them
Bushings, mounts and anti vibration parts fail at the bond far more often than in the rubber. Split sourcing is the reason, and it is fixable at the purchase order stage.
Read the guide →Answers
Automotive and Vehicle Parts Questions
Which compound should I use for power steering and cold medium seals?
HNBR is what we use most for cold medium sealing, including power steering pipes and automotive oil seals. Send the fluid and temperature range and we will confirm.
Can you supply bushings with the metal insert included?
Yes. We have our own machining workshop and coating workshop, so we machine the metal part and mould the rubber onto it rather than buying in a half finished part.
Can one order cover several different compounds?
Yes. Twelve compounds are available from us, and consolidating a mixed schedule is the usual reason automotive buyers come to us.
Do you work to a customer drawing or to your own catalogue?
To your drawing. Where the size happens to be a standard AS568 size we can also use the existing mould and skip tooling.
Sourcing for Automotive and Vehicle Parts
Send the drawing, the medium and the temperature range. We will come back with compounds and a price within one working day.