Environmental Sealing Silicone ‘O’ Rings
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Environmental Sealing Silicone ‘O’ Rings Product Overview Kemtron’s experience in the manufacture of Silicone ‘O’ rings is extensive, our preferred method of production is extruded and vulcanised. We have a large selection of vulcanising tools to suit our standard extrusions. The jointing process uses the same polymer compound ensuring gasket integrity is maintained across the joints. Moulded versions are available if specifically requested. Both silicone & fluorosilicone are available for the manufacture of ‘O’ rings in solid cord, tube and sponge. Please note that fluorosilicone is not available in sponge. Advantages Of Vulcanised ‘O’ Rings • Cost effective. • No tooling costs. • Reduced lead times. • Better surface finish (zero flash). • Allows hollow sections and sponge to be used for lower compression force. • Custom sizes are easily produced with restriction on developed length. • Tight tolerances on developed length and cross section. • Vulcanised ‘O’ rings with a ID as small as 10mm depending on cord diameter. Design Considerations • When selecting a profile it is important to give attention to the mechanical design of your product. Round and D section seals should ideally be mounted in a suitably sized groove. • If the gasket is to fit in a groove. It is important that the gasket size chosen does not overfill the channel, when using solid sections you should ensure that the groove cross sectional area is a minimum of 5% greater than the proposed gasket cross section. • Attention must also be paid to the closing force required to compress the gasket to the working height required. 19-21 Finch Drive, Springwood Industrial Estate, Braintree, Essex CM7 2SF, United Kingdom. T +44 (0)1376 348115, F +44 (0)1376 345885

(j Kemtron Proven EMC Shielding Performance Environmental Sealing Silicone 'O' RingsTechnical Specifications Tolerances Solid silicone cord and tube cross section Up to 2.0mm ± 0.15mm 2.0mm to 5.0mm ± 0.25mm 5.0mm to 9.0mm ± 0.50mm Gasket Groove Sizes 15% Compression Silicone sponge cord cross section Up to 3.0mm ± 0.25mm 3.0mm to 5.0mm ± 0.50mm 6.0mm to 9.0mm ± 0.80mm Developed Length ± 1.5mm = less than ±0.5mm on diameter Cord Diameter mm Depth Width Minimum Inside Diameter of 'O' Ring...

(j Kemtron Proven EMC Shielding Performance Environmental Sealing Silicone 'O' Rings Technical Specifications Compressed Gasket Internal Bend Radius Casting With Solid Cord Gasket Materials Solid Silicone General Temperature Shore Hardness Colour Flame Purpose Range Resistance Solid Flurosilicone General Temperature Shore Hardness Colour Flame Purpose Range Resistance Silicone Sponge SP16 Temperature Density Kg/M3 Colour Flame Range Resistance The minimum internal bend radius of a solid cord gasket is 1.5 x cross section of cord. Casting With Tube...