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Rubber Material

Rubber material is a kind of high-elastic polymer material, which is divided into two categories: natural rubber (NR) and synthetic rubber. Its unique molecular structure gives it excellent resilience, wear resistance and cushioning performance. At the same time, it can achieve oil resistance, high temperature resistance, chemical corrosion resistance and other properties through formula design.

PU
IIR
FKM
TPU
NR
PS
CR
EPDM
SBR
NBR
TPE

PU

PU (Polyurethane) is a high-performance polymer material combining the elasticity of rubber and the strength of plastic. It features wear resistance, oil resistance, and low-temperature tolerance, making it widely used in footwear, automotive, furniture, and other industries.

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IIR

IIR (Butyl Rubber) is a synthetic rubber known for its excellent air tightness, chemical resistance, and aging resistance. It is commonly used in tire liners, medical stoppers, and sealing products.

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FKM

FKM (Fluoroelastomer) is a high-performance specialty rubber known for its outstanding resistance to high temperatures, oils, and chemicals. It is widely used in demanding applications such as aerospace, automotive sealing, and chemical processing equipment.

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TPU

TPU (Thermoplastic Polyurethane) is a versatile polymer combining the elasticity of rubber with the processability of plastics. Known for its abrasion resistance, oil resistance, and high resilience, it is widely used in footwear, sporting goods, industrial components, and 3D printing.

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NR

NR (Natural Rubber) is a highly elastic natural polymer derived from rubber trees. With outstanding tensile strength, resilience, and wear resistance, it is widely used in tires, hoses, medical devices, and various elastic products.

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VMQ

VMQ (Silicone Rubber) is a synthetic rubber known for its excellent temperature resistance and insulation properties. With superior flexibility and chemical stability, it is widely used in electronic seals, medical devices, kitchenware, and automotive components.

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CR

CR (Chloroprene Rubber) is a synthetic rubber renowned for its excellent weather resistance, ozone resistance and flame retardancy. It also features good mechanical strength and elasticity, making it widely used in cables & wires, seals, adhesives and protective products.

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EPDM

EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber with exceptional weather resistance and insulation properties. Known for its superior aging resistance, ozone resistance, and chemical stability.

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SBR

SBR (Styrene-Butadiene Rubber) is one of the most widely used synthetic rubbers, polymerized from styrene and butadiene. It offers excellent abrasion resistance, tear resistance, and processability at a competitive cost.

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NBR

NBR (Nitrile Butadiene Rubber) is an oil-resistant synthetic rubber featuring excellent abrasion resistance and air tightness while maintaining good elasticity. It is widely applied in petroleum-related products like oil seals, fuel hoses, industrial rollers and protective gloves.

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TPE

TPE (Thermoplastic Elastomer) is a polymer material combining the elasticity of rubber with the processability of plastics. Known for its eco-friendliness, easy processing and recyclability, it is widely used in automotive parts, electronics, consumer goods and medical devices.

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Engineering Plastics

POM

PA

PC

PEEK

PSU

PPO

PET

LCP

PPS

PBT

PET

PI

General Plastics

PE

PMMA

PVC

PS

PP

ABS

Metal Material

Aluminum

Copper

Carbon

Special Alloy

Stainless Steel

Material Modification

Through methods such as formula optimization, process adjustment, and functional filling, plastic and rubber material modification can significantly enhance key performance indicators such as mechanical properties, weather resistance, wear resistance, and flame retardancy, while reducing costs and expanding application scenarios. 

Kehui Mold possesses extensive expertise in this field, mastering advanced modification techniques and a mature formulation system. From demand analysis and material selection to performance testing, we provide end-to-end customized solutions. We have successfully served industries such as automotive, electronics, medical, and industrial components, enabling product upgrades. Our full-chain technical services cover material selection, formulation development, and mass production support.

Rubber Material

FAQ Of Rubber Material

Visit our FAQ center for more questions.

How to choose the right rubber material for seals?
  • Environment: Temperature range (e.g., VMQ for -60°C~250°C), exposure to oils/chemicals (FKM for fuel resistance).

  • Mechanical Needs: Dynamic seals require high elasticity (NR), static seals need compression set resistance (EPDM).

  • Cost: NR for general use; specialty rubbers (FKM) for extreme conditions.

Why does rubber material degrade over time?
  • Ozone/UV Exposure: Causes surface cracking (mitigated by adding antioxidants in EPDM).

  • Heat Aging: Hardens rubber (silicone VMQ resists up to 250°C).

  • Chemical Attack: Swelling in oils (NBR withstands mild petroleum fluids).
    Proper material selection and compounding significantly extend service life.

How to address cracking/deformation in general plastics products?
  • Material selection issues → Re-select materials based on usage environment (e.g., cold-resistant PP for low-temperature use)

  • Process defects → Optimize parameters like injection temperature and holding pressure time

  • Stress concentration → Improve product design (e.g., adding rounded transitions)
    We provide failure analysis services to develop customized solutions