door seal/pu foam seal strip/weather strip - DR021

Sponge strip, 1. Epdm, CR, NBR,silicone sponge strip, 2. Customized profiles& hardness, 3. High sealing function., 4. OEM, ROHS - details see:
Type: Other Door & Window AccessoriesPlace of Origin: Guangdong China (Mainland)Brand Name: XindongModel Number: DR021
material: EPDM,CR,NBR,TPV etc.density(g/cm3): 0.50-0.60hardness(Shore A): 20°-30°tensile strength(MPA): ≥3.5
tensile elongation(%): ≥150certification: ROHS,REACHManufacturing technique: extrusionwork temperature: -40°--+120°
color: blackapplication: door, window,auto  
door seal/pu foam seal strip/weather strip
contact supplier for door seal/pu foam seal strip/weather strip

Rubber Sponge strip

1. WHY US?

1. Full technical support from material mixing to final product delivery.

2. On-time delivery with no compromise on quality

3. High-quality product making with advanced equipment and techniques.

4. above 10 years' experiences in rubber parts manufacturing.

2. Classification:

*EPDM sponge strip

Main features: good resistance to weathering aging.

Purpose: the choice of material, can be used in outdoor seal can be used for Windows and doors curtain wall sealing, auto engine seal, etc

Flame retardant: can achieve UL94V0

*Silicone sponge strip

Main features: high temperature, the highest can reach 250°; Environmental protection, can reach the food grade;

USES: can be used for cooking utensils, outdoor lamps and lanterns, etc. The sealing effect of high temperature parts

Flame retardant: can achieve UL94V0

Silicone sponge materialproperty table

NoItemUnitSpecifications and requirementsThe test results
2HardnessA shoreA25±5°28°

white,black or other colorful

3Tensile strengthmpa≥3.03.8
4elongation at break%≥150280
5Compression deformation70°C/22h%≤2816.7
6Working Temperature°C-60°- +250°OK
7Water absorption%≤102%

*CR sponge strip

Main features: flame retardant

USES: mainly used in public security seal occasions with higher requirements, such as air-condition unit seal, sealed elevator, etc

Flame retardant: can achieve UL94V0

CR sponge materialproperty table



Specifications and requirements

The test results






A shore A





3Tensile strengthmpa


4elongation at break%


5Compression deformation70°C/22h%


6Working Temperature°C

-40°- +100°

7Water absorption%



5. Our Advantage:

  1. High density foam sponge strip is manufactured by good silicone rubber with scientific formula, via advanced technology processing.
  2. It has fuel oil resistance, lubes resistance, no smell and wears well.
  3. It can be widely used for providing insulation protection for household electric appliance, industrial electric appliance.

If u are interested in our products, pls feel free to let me know directly!

Packaging Detail:by roll , then put into carton
Delivery Detail:3-5days

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