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A day seal Hangzhou is the production of EPDM seal, silicone rubber seal, foam seal strip, seal construction, automotive seals, ship seal, EPDM seal professional manufacturers and in accordance with user requirements of various tape and rubber products. The company's products have been used to seal glass walls, cars, trains, shipbuilding and other industries, according to customer requirements the company has devised a unique shock absorbing bumper strips, rubber seal doors and windows sealed plastic strips, sealing strip, door seal, auto seal, refrigerator door seal, EPDM rubber, container door seal, refrigeration door seal strip, box car door sealing tape, fire-retardant seal the door with self-adhesive Seal silicone rubber seal, polyurethane seal, fluorine rubber seal, rubber seals (mat) product. , All kinds of rubber seals (mat) product. , All kinds of rubber seals (mat) product. , All kinds of rubber seals (mat) product. , All kinds of rubber seals (mat) product. , All kinds of rubber seals (mat) product.
    
   The company strictly according to quality system implementation of advanced production and testing equipment, strong technical force, flexible operation mechanism, strong product development capabilities, speed, delivery time, quality, fully meet the relevant technical standards;. Hongdi willing to work with you work together to create a more brilliant tomorrow.
     Stresses credibility-quality, low price, outdoor guarantee does not fade, no loss meters, fast delivery, payment can collect, the logistics national cooperation, to ensure that customers in the shortest possible time delivery. In addition, we can customize various models of distributors around the printing and packaging. The company attributed the company's success with the purpose for decades, which is to provide customers with the best products, the most competitive prices and best services.
      Companies welcome customers to consult a variety of products, according to customer requirements and strive to create a special product they need. Although the company has a large number of domestic and foreign customers, but Hongdi company will continue to carry out rubber seal product improvement, innovation and research and development work.

Test items

Skills requirement

Test result

Determination

Hardness, Shore A, of

70 ± 5

68

Qualified

Tensile strength, minimum, MPa

7

10.38

Qualified

Elongation at break, minimum,%

200

480

Qualified

Compression set, B-type sample

70 ℃ X22h, maximum,%

50

38.5

Qualified

Tear strength, minimum, KN / m

Fifteen

43

Qualified

Hot air aging, 70 ℃ X70h

Change in hardness, max, degrees

Change in tensile strength, max,%

Elongation rate of change, max,%

10

-25

-35

2

12.4

-15.7

Qualified

Qualified

Qualified

Pollution

The specimen without metastasis pollution

No transfer of pollution

Qualified

Ozone resistance, 500pphm,

It stretched 20%, 40 ℃ X72h

No cracks or anomalies

No cracks

Qualified