Silicon O-rings 40 Shore A

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52 products
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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 66.4x1.78 Silicone (VMQ) 30 Shore A - Red - ses-469858 O-ring Red66.4 mm x 1.78 mmSilicone (VMQ)30 Shore ANee50 icon
O-Ring 44x2 Silicone (VMQ) 40 Shore A - Red - ses-500461 O-ring Red44 mm x 2 mmSilicone (VMQ)40 Shore ANee56 icon
O-Ring 200x10.2 Silicone (VMQ) 40 Shore A - Transparent - ses-318944 O-ring Transparant200 mm x 10.2 mmSilicone (VMQ)40 Shore ANee60 icon
O-Ring 50 X 4.5 VMQ-MVQ-Si-PMQ-PVMQ45 Red O-ring Red50 mm x 4.5 mmSilicone (VMQ)45 Shore ANee55 icon
O-Ring 78 X 4 VMQ-MVQ-Si-PMQ-PVMQ45 Red O-ring Red78 mm x 4 mmSilicone (VMQ)45 Shore ANee58 icon
O-Ring 178x4 Silicone (VMQ) 40 Shore A - Red - ses-318946 O-ring Red178 mm x 4 mmSilicone (VMQ)40 Shore ANee50 icon
O-Ring 95x5 Silicone (VMQ) 40 Shore A - Red - ses-521155 O-ring Red95 mm x 5 mmSilicone (VMQ)40 Shore ANee56 icon
O-Ring 9 X 5.5 VMQ-MVQ-Si-PMQ-PVMQ45 Blue O-ring Blue95 mm x 5.5 mmSilicone (VMQ)45 Shore ANee50 icon
O-Ring 4.34x3.53 Silicone (VMQ) 40 Shore A - Red - ses-526842 O-ring Red4.34 mm x 3.53 mmSilicone (VMQ)40 Shore ANee57 icon
O-Ring 29x5 Silicone (VMQ) 30 Shore A - Red - ses-314394 O-ring Red29 mm x 5 mmSilicone (VMQ)30 Shore ANee56 icon
O-Ring 12x1 Silicone (VMQ) 40 Shore A - Transparent - ses-478336 O-ring Transparant12 mm x 1 mmSilicone (VMQ)40 Shore ANee60 icon
O-Ring 300 X 3 VMQ-MVQ-Si-PMQ-PVMQ45 Red O-ring Red300 mm x 3 mmSilicone (VMQ)45 Shore ANee54 icon
O-Ring 36.4x1.19 Silicone (VMQ) 40 Shore A - Red - ses-314023 O-ring Red36.4 mm x 1.19 mmSilicone (VMQ)40 Shore ANee53 icon
O-Ring 13 X 1.5 VMQ-MVQ-Si-PMQ-PVMQ45 Red O-ring Red13 mm x 1.5 mmSilicone (VMQ)45 Shore ANee54 icon
O-Ring 18x12 Silicone (VMQ) 40 Shore A - Transparent - ses-423803 O-ring Transparant18 mm x 12 mmSilicone (VMQ)40 Shore ANee54 icon
O-Ring 187x4 Silicone (VMQ) 40 Shore A - Red - ses-319909 O-ring Red187 mm x 4 mmSilicone (VMQ)40 Shore ANee60 icon
O-Ring 209.5x4 Silicone (VMQ) 40 Shore A - Red - ses-318945 O-ring Red209.5 mm x 4 mmSilicone (VMQ)40 Shore ANee60 icon
O-Ring 46x1 Silicone (VMQ) 40 Shore A - White - ses-474073 O-ring White46 mm x 1 mmSilicone (VMQ)40 Shore ANee56 icon
O-Ring 666.64x5 Silicone (VMQ) 30 Shore A - Red - ses-314392 O-ring Red666.64 mm x 5 mmSilicone (VMQ)30 Shore ANee53 icon
O-Ring 120.37x1.78 Silicone (VMQ) 30 Shore A - Red - ses-469859 O-ring Red120.37 mm x 1.78 mmSilicone (VMQ)30 Shore ANee54 icon
O-Ring 52x1 Silicone (VMQ) 30 Shore A - Red - ses-518711 O-ring Red52 mm x 1 mmSilicone (VMQ)30 Shore ANee59 icon
O-Ring 19x5.5 Silicone (VMQ) 40 Shore A - White FDA - ses-524787 O-ring White19 mm x 5.5 mmSilicone (VMQ)40 Shore AJa50 icon
O-Ring 82x3 Silicone (VMQ) 40 Shore A - Red - ses-478310 O-ring Red82 mm x 3 mmSilicone (VMQ)40 Shore ANee54 icon
O-Ring 178x10 Silicone (VMQ) 40 Shore A - Red - ses-312847 O-ring Red178 mm x 10 mmSilicone (VMQ)40 Shore ANee58 icon
O-Ring 30x4 Silicone (VMQ) 40 Shore A - Red - ses-518947 O-ring Red30 mm x 4 mmSilicone (VMQ)40 Shore ANee56 icon
O-Ring 234x12 Silicone (VMQ) 40 Shore A - Red - ses-314223 O-ring Red234 mm x 12 mmSilicone (VMQ)40 Shore ANee52 icon
O-Ring 170x11 Silicone (VMQ) 40 Shore A - Red - ses-319026 O-ring Red170 mm x 11 mmSilicone (VMQ)40 Shore ANee52 icon
O-Ring 15 X 2 VMQ-MVQ-Si-PMQ-PVMQ45 Blue O-ring Blue15 mm x 2 mmSilicone (VMQ)45 Shore ANee58 icon
O-Ring 20x2 Silicone (VMQ) 40 Shore A - Red - ses-500462 O-ring Red20 mm x 2 mmSilicone (VMQ)40 Shore ANee58 icon
O-Ring 40.87 X 3.53 VMQ-MVQ-Si-PMQ-PVMQ45 Red O-ring Red40.87 mm x 3.53 mmSilicone (VMQ)45 Shore ANee60 icon
O-Ring 33 X 4 VMQ-MVQ-Si-PMQ-PVMQ45 Blue O-ring Blue33 mm x 4 mmSilicone (VMQ)45 Shore ANee52 icon
O-Ring 50x5 Silicone (VMQ) 40 Shore A - White FDA - ses-524788 O-ring White50 mm x 5 mmSilicone (VMQ)40 Shore AJa52 icon
O-Ring 24x3 Silicone (VMQ) 30 Shore A - Red - ses-475563 O-ring Red24 mm x 3 mmSilicone (VMQ)30 Shore ANee53 icon
O-Ring 456.06x3.53 Silicone (VMQ) 40 Shore A - Red - ses-319238 O-ring Red456.06 mm x 3.53 mmSilicone (VMQ)40 Shore ANee50 icon
O-Ring 41.2 X 5.7 VMQ-MVQ-Si-PMQ-PVMQ45 Blue O-ring Blue41.2 mm x 5.7 mmSilicone (VMQ)45 Shore ANee57 icon
O-Ring 18x1 Silicone (VMQ) 40 Shore A - White - ses-474074 O-ring White18 mm x 1 mmSilicone (VMQ)40 Shore ANee55 icon
O-Ring 2x1.5 Silicone (VMQ) 30 Shore A - Red - ses-500378 O-ring Red2 mm x 1.5 mmSilicone (VMQ)30 Shore ANee53 icon
O-Ring 192.5x4 Silicone (VMQ) 40 Shore A - Red - ses-413210 O-ring Red192.5 mm x 4 mmSilicone (VMQ)40 Shore ANee54 icon
O-Ring 13x1 Silicone (VMQ) 40 Shore A - Red - ses-478337 O-ring Red13 mm x 1 mmSilicone (VMQ)40 Shore ANee52 icon
O-Ring 21 X 3 VMQ-MVQ-Si-PMQ-PVMQ45 White O-ring White21 mm x 3 mmSilicone (VMQ)45 Shore ANee52 icon

What is VMQ Silicones?

VMQ Silicones is a group of elastomeric materials made from silicones, oxygen, hydrogen and carbon. As a group, silicones have poor tensile strength, tear resistance and abrasion resistance. Special compounds have been developed with exceptional resistance to heat and pressure changes. High-strength compounds have also been made, but their strength is not comparable to conventional rubber.
The compounds:
Some special compounds withstand even higher temperatures.
Silicone compounds are very clean and are used in many food and medical applications because they do not give off odor or taste. Silicone compounds are not recommended for dynamic sealing applications due to the relatively low tear strength and high coefficient of friction.
Siicones can be formulated to be electrically resistant, conductive or flame retardant. Many silicone compounds have a higher shrinkage than normal. That is why production molds for silicone products are often different from molds for nitrile.
Characteristics of silicone compounds:
• Extreme temperature range
• Low temperature flexibility
VMQ benefits:
• Excellent resistance to extreme temperatures from -50 °C to + 232 °C (-58 °F to + 450 °F)
• The retention of properties of silicone at high temperatures is superior to most other elastic materials.
• Resistant to hot air, ozone, UV radiation, engine and transmission oils, animal and vegetable fats and oils and brake fluids.
• Low resistance
• Stays stable in extreme environments
• Material properties remain the same over a wide temperature range
• High temperature resistance
• Extremely suitable for industrial applications
• The rubber with the largest temperature range (-100 °C to more than +300 °C) phenyl silicone rubber
• Superior aging and ozone resistance
• High electrical insulation values
• Wide range of chemical resistances
• Good compression set at higher temperatures
• Restituent for bacteria and fungi
• 54 to 232 °C
• Resistant to oxygen ozone and UV light
• Silicones are generally non-reactive, odorless, tasteless, non-toxic and antifungal. They have also set a high level of flexibility and low compression.
Cons of VMQ:
Low resistance to mineral oils
Silicone rubber is difficult to attach
Poor gas density
Non-resistant to hydrocarbon, based fuels, aromatic hydrocarbons, low molecular weight silicone oils, strong acids and alkalis.
It is known as a mechanically weaker
Poor mechanical performance, sensitive to shear forces and therefore not suitable for dynamic or rotating closure applications.
What is it used for?
  • Medical industry
  • Pharmaceutical industry
  • Food industry
  • Stimulant industry
History of VMQ silicone
In 1943, Dow Corining (a collaboration of Dow Chemicals and the Corning Glass Company) was the first to produce silicone rubber. Moments later General Electric followed with the production of silicone rubber. They patented their production method.
Trade Names:
KE® (Shin-Etsu Silicones), Silastic® (Dow Corning Corp.), Silplus® (Momentive Performance Materials Inc.), Tufel® (Momentive Performance Materials Inc.)
Momentive Performance Materials Inc.)