Open Cell EPDM Sponge Rubber

1. Product OverviewOpen Cell EPDM Sponge Rubber is a lightweight, flexible, and resilient foam material made from 100% EPDM (Ethylene Propylene Diene Monomer) rubber, featuring a uniform interconnected open‑cell structure. It delivers outstanding weatherability, UV/ozone resistance, and excellent compression recovery, ideal for outdoor sealing, cushioning, vibration damping, and sound absorption applications.

2. Key Features

Open‑cell structure: Interconnected pores ensure excellent breathability, air circulation, and sound absorption.

Superior weather resistance: Outstanding UV, ozone, and aging resistance; performs well outdoors long‑term.

Extreme temperature tolerance: Operates reliably from ‑40°C to +120°C (‑40°F to 248°F).

Low compression set: Excellent recovery after repeated compression, maintaining shape and performance.

Chemical resistance: Resists acids, alkalis, and oxidizing agents; suitable for harsh industrial environments.

Lightweight & conformable: Soft, flexible, and easy to cut; fits irregular surfaces perfectly.

3. Typical Specifications

Material: 100% EPDM 

Density: 60–100 kg/m³ (customizable)

Color: Black (standard) gray, white available on request

Hardness: 5–25 Shore C 

Temperature range: ‑40°C to +120°C

Tensile strength: ≥0.1 MPa

Elongation at break: ≥150%

4. Applications

Automotive: Door/window weatherstripping, interior padding, vibration dampers, HVAC seals.

Construction & HVAC: Duct gaskets, expansion joints, soundproofing, insulation strips, dust seals.

Industrial: Anti‑vibration pads, machinery cushioning, die‑ejection pads, protective packaging.

Outdoor: Marine seals, garden equipment padding, outdoor furniture cushioning.

5. Available Forms

Sheets, rolls, strips, custom die‑cut parts

With/without pressure‑sensitive adhesive (PSA) backing

Custom thickness (1–50 mm), size, density, and color available