Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow NORDEL IP 4640 EPDM

Dow NORDEL IP 4640 is a high-ethylene, solution-polymerized EPDM rubber offering excellent heat, ozone and weather resistance plus superior compression set performance. Designed for demanding automotive and industrial sealing applications, it delivers consistent processing and vulcanization behavior with balanced mechanical properties and long-term durability in harsh environments.
  • dow nordel ip 4640 epdm_881f091b
  • dow nordel ip 4640 epdm_881f091b

Features Of Dow NORDEL IP 4640 EPDM

  1. High ethylene content for excellent compression set resistance and thermal stability.

  2. Optimized diene level enabling efficient sulfur and peroxide curing systems.

  3. Outstanding ozone, weathering, and UV resistance due to saturated polymer backbone.

  4. Good processability in extrusion and calendering operations with low Mooney viscosity.

  5. Compatible with high-load carbon black and mineral fillers for enhanced reinforcement.

Typical Applications Of Dow NORDEL IP 4640 EPDM

  1. Automotive weatherstripping and door seals.

  2. Roofing membranes for commercial flat roof systems.

  3. Hot water and steam hose compounds.

  4. Bridge expansion joint profiles.

  5. Industrial gaskets requiring long-term sealing performance.

Specifications Of Dow NORDEL IP 4640 EPDM

Chemical TypeEPDM terpolymer (Ethylene-Propylene-Diene)
Product FormRaw elastomer in bale form
AppearanceOff-white to light tan, smooth surface bales
Primary ApplicationsExtruded and molded sealing products
Key FeaturesHigh ethylene, medium diene, low Mooney viscosity
BenefitsSuperior aging resistance, flexible processing, consistent cure behavior
Standard Packaging25 kg bales on pallets


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