High Tear Resistance Silicone-Rubber32XXU Silicone-Rubber33XXU Series

High Tear Resistance Silicone-Rubber32XXU Silicone-Rubber33XXU Series

High Tear Resistance Silicone-Rubber32XXU Silicone-Rubber33XXU Series

This series is silicone rubber compounds with high transparency and tear resistance which are vulcanization molding by adding curing agents. (The curing agents should be chosen according to process requirements.)

product details

Special properties:

  • Transparent appearance, excellent physical performance.
  • Resistance to crephardening in a long-term storage.
  • Low compression set.
  • High tear resistance.
  • Excellent process performance.
  • Can be used to mix with other rubbers.

Main applications:

  • Suitable for molding products which require high tear resistance with complex structure and high mechanical property. Suitable for large size extruded products such as special cable sheath.Suitable for large size vulcanized products such as silicone rubber plate and air bags.
  • SR32XXU &SR36XXU: crescent tear is up to 30~40, right angle tear is up to around 40. Suitable for general high tear occasions, the price is moderate.
  • SR33XXU: Can be used in special occasions that require super high tear resistance meets around 50. The price is higher.

Characteristics:

Type (according to GB/T 5576-1997)…………………………..VMQ

Natural color…………………………………………………………….transparency

Curing Condition:

After addition of 1.2% of 2.5-dimethyl bis -(tertiobutyl peroxy) 2.5-hexane (45%) and vulcanization for 5 min. at 170°C, with post curing at 200℃×4.

Mechanical properties:

Item Testing Method Unit Technical data
SR3240U SR3250U SR3270U SR3280U SR3350U SR3360U SR3370U
Appearance / semitransparent semitransparent semitransparent semitransparent semitransparent semitransparent semitransparent
Density ASTM D792 g/cm3 1.10 1.14 1.19 1.21 1.14 1.16 1.18
Hardness(Shore A) ASTM D2240 41 49 71 82 52 60 72
Tensile Strength ASTM D412 MPa 9.5 10 10.5 9.8 11 11.2 10.8
Elongation ASTM D412 % 850 700 450 300 820 570 520
Tear Strength

(crescent)

ASTM D 624 B kN/m 30 35 36 30 45 48 49

 

Packaging:20 kg per cardboard boxes.

 

Storage and shelf life:

This series may be stored in its original unopened packaging at a temperature below 40°C for up to 12 months as from the date of manufacture.

 

For More Product Information, Please Visit Our Website: www.sanezen.com

Contact:

Plant Address: Baishou Road, North District of Xuan Zhou Economic Development Zone, Xuan Cheng City Anhui Province, China.

Commercial Address: Room 1606-1608, Boda Commercial Buildings, No. 11 Puhuitang Road Xuhui District, Shanghai, China 200030   Tel: +86 21 6487 9251      Fax: +86 21 5106 2693

E-mail: kevenwang@sanezen.com

Warning to the users: 

The information contained in this document is given in good faith based on our current knowledge. It is only an indication and is in no way binding, particularly as regards infringement of or prejudice to third party rights through the use of our products. Sanezen guarantees that its products comply with its sales specifications. This information must on no account be used as a substitute for necessary prior tests which alone can ensure that a product is suitable for given use. Determination of the suitability of product for the uses and applications contemplated by users and others shall be the sole responsibility of users. Users are responsible for ensuring compliance with local legislation and for obtaining the necessary certifications and authorisations. Users are requested to check that they are in possession of the latest version of this document and Sanezen is at their disposal to supply any additional information.