ð§ Metric EPDM Rubber O Ring Seals 8.6mm Cross Section 32.8mm-580mm ID BS102-BS125
These premium metric EPDM rubber O-ring seals feature an 8.6mm cross-section, covering inner diameter sizes from 32.8mm to 580mm within the BS102 to BS125 standard series. Manufactured from solid black EPDM rubber with 70A shore hardness, they maintain stable sealing performance across a wide temperature spectrum and deliver superior anti-aging properties, widely used for automotive, construction, electrical and hydraulic sealing applications.
â Core Features & Advantages of 8.6mm Cross Section EPDM O-Rings
- âïļ Excellent Weather Resistance: Outstanding ozone resistance, UV shielding and long-term anti-aging performance for outdoor exposure scenarios.
- ⥠Reliable Electrical Insulation: Stable insulating performance and excellent chemical inertness for electrical equipment sealing.
- ðŠķ Low Specific Gravity & High Fillability: Light weight, compatible with high filling formulations to lower costs without sacrificing sealing performance.
- ðĄïļ Broad Operating Temperature Range: Stable elasticity from -50°C (-58â) up to 150°C (302â).
- ðĄïļ 70A Shore Hardness: Moderate hardness with great penetration resistance, balanced compression and rebound resilience.
- ð Complete BS Standard Metric Sizes: 8.6mm wire cross-section, inner diameter ranging 32.8mm–580mm, BS102 to BS125 series available.
- âŦ Pure Black EPDM Compound: Uniform color free of impurities, consistent sealing effect for long-term continuous use.
ð Complete Technical Specifications
| Measurement Unit | Metric system (mm) |
|---|---|
| Color | Solid Black |
| Raw Material | EPDM (Ethylene Propylene Diene Monomer) Rubber |
| Shore Hardness | 70A Durometer, good penetration resistance |
| Working Temperature Range | -58â (-50â) ~ 302â (150â) |
| Size Definition Standard | Outer Diameter * Inner Diameter * Cross Section (Wire Diameter) |
| Cross Section Wire Size | 8.6mm |
| Inner Diameter Coverage | 32.8mm ~ 580mm, BS102-BS125 standard range |
| Main Material Strengths | Ozone resistant, UV resistant, anti-aging, high insulation, stable chemical properties |
| Material Limitations | Average oil resistance; poor compatibility with certain polar solvents & corrosive chemicals |
â Frequently Asked Questions
ð What industries and equipment use these EPDM O-rings?
They are widely applied for automotive sealing components, building weatherproof gaskets, electrical insulation parts, hydraulic fittings and various mechanical static & dynamic sealing joints.
ðĒïļ Can these O-rings be used for engine oil sealing?
EPDM rubber only has average oil resistance, so it is not suitable for long-term immersion in mineral oil, engine oil and similar oily media. NBR nitrile O-rings are recommended for oil sealing working conditions.
ð§ïļ Are these O-rings suitable for long-term outdoor sun and rain exposure?
Yes. EPDM’s superior UV and ozone resistance effectively prevents cracking and hardening under long-term sunlight, rain and temperature fluctuations, perfect for outdoor plumbing and enclosure sealing.
ð Important Pre-Purchase & Installation Reminder
Please double-check your required inner diameter, cross-section size and working medium compatibility before placing orders. Install the O-ring into the matching groove correctly to avoid premature leakage and damage.
ð Why Choose Our Metric 8.6mm Cross Section EPDM O-Ring Seals?
Our BS standard EPDM rubber O-rings adopt 70A hardness EPDM raw material with premium anti-UV, anti-ozone and wide-temperature performance, perfectly matching outdoor, electrical and water-based sealing working environments. Covering full BS102-BS125 metric sizes with 8.6mm wire diameter and 32.8–580mm inner diameter options, these black O-rings deliver stable insulation and weatherproof sealing. Please note they are not ideal for heavy oil or strong solvent environments; confirm your working medium and dimensions beforehand to get a durable long-term sealing solution for automotive, construction and hydraulic equipment.
On 03-Jul-2026 at 15:04:19 BST, seller added the following information: