VMQ, Silicone O-Rings & Seals
Silicone O-rings are very resistant to high/low temperatures, oxygen, ozone, and UV light. In addition to being generally inert (non-reactive), silicones are odourless, tasteless, non- toxic, and fungus resistant. They also have great flexibility retention and low compression set.
It must be taken into account that in general silicone has poor mechanical performance. Silicone Seals are sensitive to shear forces, and therefore not suitable for dynamic or rotary closing applications.
General properties VMQ
-54 to 232 °C
30 / 40 / 50 / 60 / 70 / 80
KE® (Shin-Etsu Silicones), Silastic® (Dow Corning Corp.), Silplus® (Momentive Performance Materials Inc.), Tufel® (Momentive Performance Materials Inc.)
Silicone, VMQ, PVMQ
Red,Yellow, Other colors on request.
Silicone performs well in
- Engine & transmission oils (mineral oils)
- Dry heat
Silicone does not perform well in
- Petroleum oils & fuels
- Ketones (MEK, acetone)
- Concentrated acids
Typical VMQ Applications
- High temperature air seals
- Aircraft, subways and building interiors
- Sound and vibration dampening in automotive
Certifications & compliances
Newdealseals offers a wide range of products & materials that are certified and/or in compliance with industry specific standards. Examples of certifications and compliances:
FDA CFR 21.177.2600 (A-D) Dry foods
FDA CFR 21.177.2600 (A-F) Fatty foods
EC 1935/2004 compliance
EC 2023/2006 compliance
BFR Class XV
USP class VI
NSF 61 section 6
Oil & Gas
DIN EN 549
Alternatives for VMQ, Silicone O-Rings & Seals
Do you want an improved compression set?
Do you want better overal chemical resistance & higher temperature resistance?
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