Red Silicone O Rings
Buy more, save more! Buy in bulk to unlock huge savings.
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BS029 Red Silicone O Ring. 37.82mm ID x 1.78mm C/S. Choose Quantity. New.
Regular price £1.68Regular priceUnit price / per -
15mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 15x3. New. Metric.
Regular price £1.65Regular priceUnit price / per -
BS113 Red Silicone O Ring . Choose Quantity . 13.94mm I/D x 2.62mm C/S . New .
Regular price £1.57Regular priceUnit price / per -
14mm ID x 2.5mm C/S Red Silicone O Ring. Choose Quantity. 14x2.5. New. Metric.
Regular price £1.65Regular priceUnit price / per -
43mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 43x3. New. Metric.
Regular price £1.98Regular priceUnit price / per -
14mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 14x3. New. Metric.
Regular price £1.65Regular priceUnit price / per -
18mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 18x3. New. Metric.
Regular price £1.65Regular priceUnit price / per -
11mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 11x3. New. Metric.
Regular price £1.54Regular priceUnit price / per -
BS019 Red Silicone O Ring. 20.35mm ID x 1.78mm C/S. Choose Quantity. New.
Regular price £1.46Regular priceUnit price / per -
20mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 20x3. New. Metric.
Regular price £1.65Regular priceUnit price / per -
BS021 Red Silicone O Ring. 23.52mm ID x 1.78mm C/S. Choose Quantity. New.
Regular price £1.46Regular priceUnit price / per -
33mm ID x 3mm C/S Red Silicone O Ring. Choose Quantity. 33x3. New. Metric.
Regular price £1.98Regular priceUnit price / per
Red Silicone O-Rings – High Temp & Food Contact Sealing
Our red silicone o rings are perfect for high-temperature, low-temperature, and food-safe sealing applications. With a wide operating range and excellent flexibility, they’re ideal in both domestic and industrial environments.
✅ Features of Silicone O Rings
- Wide temperature range: –50 °C to +200 °C
- Food & beverage safe (non-toxic, tasteless)
- Steam, ozone & weather resistant
- Soft & flexible – ideal for fragile fittings or brittle plastics
🛠️ Common Uses
- Espresso machines, ovens & food processing equipment
- Water filtration & home brewing systems
- Steam pipes & autoclaves
- Electronics & lighting gaskets
📏 Sizes & Options
- Metric and BS series o rings available in red silicone
- Standard hardness: 60–70 Shore A
- Need a specific size or colour? Contact us – we may already have it
⚖️ Silicone vs EPDM vs Nitrile – Quick Comparison
| Feature | Silicone | EPDM | NBR (Nitrile) |
|---|---|---|---|
| Temp Range | –50 °C to +200 °C | –45 °C to +150 °C | –40 °C to +120 °C |
| Water Resistance | Good | Excellent | Good |
| Oil Resistance | Poor | Poor | Good |
| Food Safe | Yes | Some grades | No |
| Flexibility | Excellent | Good | Good |
🧡 Why Buy from SealWithSelo?
- No minimum order quantity – even for silicone!
- Every O-ring individually packed and measured
- Friendly support & fast UK dispatch