BY MATERIAL

EPDM O-Rings — Supply & Application Support

We supply EPDM O-rings and support compound and application review. Start with your drawing, dimensions, existing compound specification or seal replacement requirement.

Request a Technical Review

Initial response within 12 hours.

Three nested black EPDM O-rings at the center, with other O-rings arranged around them
The three nested O-rings in the center are EPDM.

01 / EPDM REQUIREMENTS

Describe the Media and Exposure

EPDM (ethylene propylene diene rubber) is often considered for selected water-based sealing applications. Its resistance to weathering and ozone can also be valuable where seals are exposed to outdoor conditions or ambient air. These are general material-selection characteristics, not specifications for every EPDM product. The proposed compound should be reviewed against the actual media, temperature, exposure duration and seal design.

Peroxide-Cured EPDM Options

FLUID supplies peroxide-cured EPDM O-rings. Peroxide curing and sulfur curing use different curing agents to crosslink the rubber. The curing system can influence heat aging, compression set and other sealing properties, alongside the overall formulation and processing conditions. Peroxide curing does not make a compound suitable for every application. The proposed compound, operating conditions and available documentation should be reviewed for each project; the curing description alone does not establish a temperature limit, steam life or certification.

Water, steam and cleaning exposure are starting points for reviewing an EPDM requirement, not confirmation that every EPDM compound or finished seal is suitable. Include the existing specification and any reason for replacement.

Water and hot water

Describe the water conditions, additives, temperature, pressure and exposure duration. Review the specific compound and sealing arrangement against the actual service conditions.

Steam exposure

Share steam conditions, temperature, pressure, exposure duration and cycling. A general EPDM designation does not confirm suitability for the stated steam service.

Cleaning media

Identify cleaning chemicals, concentration, mixtures, temperature, contact time and frequency. Include other process media and lubricants the seal may encounter; compatibility must be reviewed separately.

EPDM is generally not a first-choice material for petroleum-based lubricating oils or hydrocarbon fuels. Identify the exact fluid, additives, mixtures and any assembly lubricant. Any proposed departure from this general selection guidance requires evidence for the specific compound and exposure conditions.

02 / EPDM REQUIREMENTS

Review the Compound and Sealing System

Review the existing specification or candidate compound and available documentation together with exact media, pressure, static or dynamic operation, gland geometry, compression and clearances. An alternative is not assumed equivalent simply because it is also EPDM.

Continuous operation and short exposures are reviewed separately, including duration, frequency and temperature cycling. A material name or short exposure alone does not establish a temperature rating or finished-seal performance.

03 / EPDM REQUIREMENTS

Food-Contact Requirements Need Separate Review

If food contact is part of your requirement, describe the intended use, target market, contact conditions and required documentation during the technical review. The specific compound and supporting documents need separate confirmation; an EPDM material name is not a food-contact compliance statement.

04 / REVIEW

Share What You Already Have

You do not need a complete specification to begin.

  1. 01

    Drawing, dimensions, sample information or part reference.

  2. 02

    Existing EPDM compound specification, required documents and replacement requirements, if known.

  3. 03

    Exact process and cleaning media, concentration, additives, lubricants and exposure duration or frequency.

  4. 04

    Continuous operating temperature, short exposures, temperature cycling, pressure and static or dynamic operation.

  5. 05

    Gland details, service history, leakage or damage, and any food-contact use and documentation requirements.

05 / RELATED PATHS

Continue the technical discussion

06 / TECHNICAL REVIEW FAQ

Start with what you have

Can I start without a drawing?

Yes. A sample, dimensions, photo, part number, or a description of the sealing issue can provide the starting point.

What information helps the review?

Share the information available, such as media, temperature, pressure, motion, seal geometry, or operating history. Missing information can be identified during the review.

What happens after I send a requirement?

We review the available requirement, clarify the next information needed where relevant, and respond with the appropriate next step.

Is EPDM suitable for petroleum-based oils or fuels?

EPDM is generally not recommended as the first choice for petroleum-based lubricating oils or hydrocarbon fuels, which may cause swelling and loss of sealing performance. Share the exact fluid, additives, concentration, temperature and exposure duration, including any assembly lubricant. A proposed EPDM compound should only be considered for such exposure when supporting compatibility evidence is available for the intended conditions; the material name alone is insufficient.

Can EPDM O-rings be used in hot water or steam?

Selected EPDM compounds can be considered for hot-water or steam sealing, but suitability varies with formulation and service conditions. Review the water chemistry or steam condition, temperature, pressure, exposure duration and cycling, together with cleaning chemicals and the seal arrangement. Evidence for one compound or short exposure does not establish suitability for another compound or continuous steam service. The proposed material and application require specific review.

NEXT STEP

Discuss Your EPDM O-Ring Requirement

Send the information available. We will review the compound, application and any documentation requirements, and clarify the next information needed.

Request a Technical Review

Initial response within 12 hours.

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