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Formula /Technical Design   Allstar can independently design the rubber material formula according to the product performance required by the drawings, and has many years of experience in the formula design of several commonly used rubber types (such as EPDM / NBR / NR), which can meet the increasingly stringent environmental protection requirements and performance indicators

Mould/Product Design   Through continuous practical operation and maintaining communication with external institutions, Allstar’s mold design and processing engineers have a deep accumulation in the structural design and production feasibility of rubber molds.

Product Design   Allstar has the ability to develop and design vehicle parts simultaneously with OEM. From 2012 to now, allstar has accumulated rich development experience and has been approved by experts from the car maker.

RUBBER TEST CENTER Provides various types of mixed rubber with different properties, such as natural rubber, ethylene propylene rubber, nitrile rubber, chloroprene rubber, hydrogenated nitrile rubber, fluorine rubber, acrylate rubber, etc., to meet the needs in Various automotive parts  testing items properties Testing standards Hardness, Shore A/degree 50~80 GB/T531-1999 Minimum tensile strength/MPa 18~22 GB/T528-1998 Minimum elongation at break/% ≥350 GB/T528-1998 tear strengthKN/M 10~40 GB/T529-1998 Maximum compression permanent deformation/%，B型100 ℃×22h ≤50% GB/T7759-1987 Hot air aging 100 ℃×70h     Hardness, Shore A/degree Minimum tensile strength Minimum elongation at break% 0~±15 ±-30 -50 GB/T531-1999 GB/T528-1998 GB/T528-1998 brittleness temperature℃ ≤-40 GB1682 ozone resistance 200pphm，72h，40℃，20%：0级 GB/T7762-2003 Fatigue performance with a radial force of 15KN and a frequency of 2HZ. There are no cracks on the rubber after 600000 cycles

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