Rubber Materials for Custom Manufacturing

Expert Engineering Consultation for Rubber Selection

When it comes to custom rubber parts, our engineers don’t just follow specifications — we guide you from start to finish. We help you choose the right rubber material by balancing performance, manufacturability, and cost.

Application-based material recommendation

Design for manufacturability (DFM) review

Cost vs performance optimization

Prototype material validation

Rubber Materials We Process & Molding

Rubber materials are versatile elastomers used across industries for their elasticity, chemical resistance, and thermal stability. The list below shows common elastomers we custom process through compression molding and injection molding. If you don’t see the material you need, contact us for a tailored solution.

NR

(Natural Rubber)

High elasticity, excellent tensile strength, and abrasion resistance. Good for seals, gaskets, and vibration dampers. Sensitive to oils and UV.

EPDM

(Ethylene Propylene Diene Monomer)

Excellent weather, ozone, and heat resistance. Ideal for outdoor seals, roofing gaskets, and automotive weatherstripping. Poor oil resistance.

NBR

(Nitrile / Buna-N)

Oil- and fuel-resistant elastomer with good mechanical strength. Common for O-rings, fuel hoses, and hydraulic seals. Not suitable for ozone exposure.

SBR

(Styrene-Butadiene Rubber)

Good abrasion resistance and cost-effective. Often used in tires, footwear soles, and conveyor belts. Moderate heat and chemical resistance.

VMQ

(Silicone Rubber)

Extreme temperature stable (-60°C to 250°C), flexible, biocompatible; used in medical devices, food-contact parts, and seals; lower mechanical strength.

CR

(Chloroprene / Neoprene)

Good weathering, ozone, and moderate oil resistance. Used for industrial belts, hoses, and gaskets. Balanced performance across applications.

FKM

(Viton / Fluoroelastomer)

High chemical, oil, and heat resistance. Excellent for automotive, aerospace, and industrial seals exposed to aggressive chemicals. High cost.

FFKM

(Perfluoroelastomer)

Extreme chemical and heat resistance (up to 327°C). Ideal for high-performance seals in semiconductor, pharmaceutical, and chemical industries. High cost.

IIR

(Butyl Rubber)

Excellent gas impermeability and chemical resistance. Ideal for inner tubes, pharmaceutical stoppers, and sealing applications requiring airtightness.

PU

(Polyurethane)

Excellent abrasion and tear resistance with high load capacity; commonly used for wheels, rollers, seals, gaskets, and industrial liners.

Rubber Material Custom Modification

From standard grades to custom formulations, we tailor elastomers to your needs. Here are some of our common modified materials, and we have extensive experience in modifying rubber compounds to provide the optimal balance of performance and cost.

Get Your Custom Rubber Parts

From material selection to final delivery, we handle every step. Share your requirements, and we’ll deliver your custom rubber parts on time and within budget.

Jiangzhi Processing Services

FAQs About Rubber Material Parts

Don't get your answer? Let’s jiangzhi answer for you!

What are the tolerances for molded rubber parts?

Most rubber parts are made with tolerances around ±0.25–0.40 mm. For more precise applications, we can adjust the tooling and design to meet tighter requirements, so your parts fit perfectly.

Which rubber has the best compression set?

If you need seals that keep their shape under long-term pressure, FFKM performs best (5–12%), with FKM and Butyl (IIR) also doing very well. We can help you choose based on your operating conditions and budget.

Can you customize the hardness (Shore A)?

Absolutely! We can adjust rubber hardness from Shore A 20 to 90, so whether you need a soft, flexible seal or a firmer, durable gasket, we can tailor it to your exact needs.

Which rubber material is best for high-temperature applications?

For high-heat environments: FFKM works up to 300°C, FKM up to 250°C, and Silicone (MVQ) up to 230°C. We can help you pick the right one based on your temperature range, duration, and exposure conditions.

What rubber offers the best oil and fuel resistance?

For oil and fuel, FKM and FFKM are top performers. NBR is a cost-effective option for less extreme conditions.

Which rubber is most suitable for outdoor, UV, and ozone exposure?

EPDM is ideal for long-term outdoor use, UV, and ozone resistance, while Silicone also holds up very well in sunlight and harsh weather.

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