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Properties of Rubber Extrusions / Seals Tested

We test all materials and products to industrial, national standards and customer-specific requirements in-house or with third-parties. For example, we can test these properties of rubber extrusions / seals: hardness, density, tensile strength, elongation, brittleness temperature, heat aging, compression set, ozone resistance, staining in contact with organic material, corrosivity, low-temperature flexibility, low-temperature flexibility of coating, splice strength between solid &sponge, splice strength between extrusion and corner, dimensions, compression load, abrasion resistance of flock, insertion force, extraction force.

rubber seals test

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Rubber extrusions meet specifications of national standards in China

Hebei Shida Seal Group extrudes a variety of rubber and plastics and produces weather-strips and seals for a number of different industries
including automotive, railway, etc. Our rubber extrusions meet and exceed specifications of national standards in China. At the same time, our rubber products can also meet ASTM, SAE specifications depending the particular application and part.

 Standard Number: QC/T 639-2004
 Standard Title: Rubber weatherstrips for automobile
 Scope: The standard stipulates specification for rubber weatherstrips for automotive applications, test methods, and specification for inspection, marking, packaging, shipping and storage of these rubber products. The standard is applicable to all types of rubber weatherstrips for automotive applications made of EPDM (Ethylene Propylene Diene Terpolymer).
   
 Standard Number: GB/T 21282–2007
 Standard Title: Rubber/plastics weatherstrip for automobile
 Scope: The standard stipulates specification for rubber/plastics weatherstrips for passenger cars, test methods, and specification for inspection, marking, packaging, shipping and storage of these rubber/plastics products. The standard is applicable to all types of rubber weatherstrips for passenger cars made of rubber, plastic, alone or in combination.
   
 Standard Number: GB/T 27568-2011
 Standard Title: Rubber gasket for doors & windows in railway vehicles
 Scope: The standard stipulates specification for rubber gasket for doors & windows in railway vehicles, test methods, and specification for inspection, marking, packaging, shipping and storage of these rubber products. The standard is applicable to rubber gasket for doors & windows of all sorts of vehicles that run on the rails including subways, light rail vehicles, high speed trains, etc.