Rubber Seal Materials

AVMR manufacture custom rubber seals for a range of industries, including Automotive and the Offshore Industry.

Rubber moulded seals come in many shapes and sizes. From basic dust caps or dust seals to complicated 3-dimensional bonded seals, AVMR probably have the capabilities and experience to mould your product – as long as it is under 50cm diameter.

Key factors to consider when selecting a seal production partner include:

Designing and selecting the right rubber. This depends heavily on what the sealing application is, how the rubber moulded seal operates, and the environmental conditions it has to work in.
Selecting a precision moulder with the tooling experience to deliver the required dimensional tolerances and surface finishes.
Especially for complex seal sections and multi-barrier seals, selecting a manufacturer that has the experience to stop air and gases from becoming trapped in the tool. Small fully encased bubbles can create weak points which are less likely to resist the pressures on them. Surface bubbles can do the same but can also interrupt a sealing surface; it is no surprise that seals and gaskets are sensitive to weak points and surface finish.

Selecting Materials for Rubber Seals

Seals have different material requirements to anti vibration or anti shock rubber components. Key considerations include environmental compatibility and compression set. The material may also need to work mechanically, or be bonded, so additional requirements can also exist depending on the type of seal.

Common Rubber Seal types

Flat seal
O-rings
Oil seal
Grommet
Multi-surface
U-Cup seal
Bellows
V-Seal
Diaphragm

Custom Rubber Seal Design & Development

AVMR have many years of experience in manufacture of custom rubber seals, being able to develop solutions for a range of sealing applications. A core part of our expertise relates to substrates for seals:

Substrates, often metal, are commonly used to provide product stiffness, fixture points, or as wear surfaces. Movement, or deflection, between the rubber and the substrate might be expected in either installation or in use, in which case we would almost always recommend bonding the substrate to the rubber rather than relying on friction.

There are a number of advantages to bonding the substrate, the main one being mitigating the risk of tearing or uneven rubber wear at the substrate-rubber interface. This can propagate exponentially, especially when poorly installed.