Red Silicone Rubber Washer - 21mm (0.83") OD x 3mm (0.12") ID x 0.8mm Thick
All Prices Include GST.
- Available in a large selection of standard sizes.
- Custom sized washers also available upon request.
- Cut in our Australian facilities from high quality, high temperature silicone rubber sheet.
At Swift, we are very pleased to offer one of the world’s largest ranges of high-quality silicone rubber washers and flat seals. All our Red Silicone Rubber Washers are manufactured from premium grade silicone rubber that withstands high temperatures, is FDA certified for food grade applications and provides excellent sealing performance.
This page lists all our standard sizes of Red, Food Grade Silicone Rubber Washers with an outside diameter of approximately 21mm. All of these are cut to size in our Australian facilities to suit tight tolerances. To browse our huge range of other sizes of silicone washers, please follow this link.
21mm OD, 0.8mm Thick Red Silicone Washer Standard Size Table.
The table below lists all our standard sizes of Red Silicone Rubber Washers in this particular outside diameter. Custom sizes can also be produced upon request. Please do not hesitate to contact us for more information or to enquire about custom silicone washer manufacturing.
|Washer ID||Washer OD|
|2.5mm (0.10")||21mm (0.83")|
|3mm (0.12")||21mm (0.83")|
|3.5mm (0.14")||21mm (0.83")|
|4mm (0.16")||21mm (0.83")|
|4.5mm (0.18")||21mm (0.83")|
|5mm (0.2")||21mm (0.83")|
|5.5mm (0.22")||21mm (0.83")|
|6mm (0.24")||21mm (0.83")|
|6.5mm (0.26")||21mm (0.83")|
|7mm (0.28")||21mm (0.83")|
|7.5mm (0.3")||21mm (0.83")|
|8mm (0.31")||21mm (0.83")|
|8.5mm (0.33")||21mm (0.83")|
|9mm (0.35")||21mm (0.83")|
|10mm (0.39")||21mm (0.83")|
|11mm (0.43")||21mm (0.83")|
|12mm (0.47")||21mm (0.83")|
|13mm (0.51")||21mm (0.83")|
|14mm (0.55")||21mm (0.83")|
|15mm (0.61")||21mm (0.83")|
|16mm (0.63")||21mm (0.83")|
Sealing Capabilities of Red Silicone Rubber Washers.
Our Red Silicone Rubber is a premium-quality, industrial grade Silicone Rubber Sheet with excellent sealing properties. This rubber has excellent temperature resistance, very good electrical insulation properties and wide-ranging chemical resistance. These, and other properties, are expanded on more below:
Food Grade and Potable Water Approved.
Washers and seals cut from our Red Silicone Rubber inherit this materials food and potable water certification. Red Silicone Rubber Washers from Swift are made from food grade rubber which allow them to be used in sealing equipment that will have direct contact with food (as per FDA and EU standards) and for sealing potable (drinking) water (as per WRAS).
This rubber also carries certifications for several other applications which are detailed more on the attached technical data and over on the specifications tab.
Excellent Heat and Cold Temperature Resistance.
Seals made from our Red Silicone Rubber will withstand ongoing exposure to temperatures between -60°C and +230°C as well as short-term spikes to 250°C.
This is important as most other rubbers (Viton/FKM is the other exception) simply will become brittle and crack well before -50°C and will exhibit serious degradation before 160°C. Silicone doesn't and maintains excellent flexibility and sealing performance. An important attribute for high or low temperature seals.
Excellent Sealing Characteristics.
Silicone Washers are Seals are often selected because of this rubber excellent sealing performance. All the washers featured on this page are made from 60 Shore A Durometer Rubber sheet and have excellent compression, recovery and mechanical strength.
This results in washers which are very long lasting and offer reliable sealing performance.
|Hardness (ASTM D2240)||60 Shore A (+/- 5) Durometer|
|Continuous Operating Temperature||-60°C to +230°C|
|Short-Term Operating Temperature||250°C|
|Elongation at Break (ASTM D412)||340%|
|Tear Strength (ASTM D624)||14.2 N / mm|
|Tensile Strength (ASTM D412)||1146 PSI|
|Potable Water||WRAS Approved for Potable Water
at Temperatures up to 85°C
|FDA Compliant||As Per 21 CFR 177.2600
(Suitable for Direct Food Contact)
|EC Food Safe||Compliant with EC 1935/2004
(Suitable for Direct Food Contact)
|RoHS and REACh||Both Fully Compliant|
|FMVSS 302||Meets Part 571 Flammability Test|
|Unit Of Measure||ea|
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