Dow Corning® QP1-240

Category: Silicone , Silicone
Manufacturer: Dow Corning Corporation
Trademark: Dow Corning®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: ZpEeIG_DowCorningQP1240.pdf
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Liquid Silicone Rubber materials for device and component fabrication in the healthcare industry.

APPLICATIONS
Dow Corning® QP1-2XX Liquid Silicone Rubbers (LSRs) are platinum-catalyzed, heat-cured materials designed for the fabrication of medical devices and device components and for short term applications.

DESCRIPTION
Dow Corning QP1-2XX LSRs are a series of two-part platinum-catalyzed silicone elastomers specifically designed for liquid injection molding. Each elastomer is supplied in a two-part kit (Part A and Part B), equal portions (by weight) of which must be thoroughly blended together prior to use. The elastomer is thermally cured via an addition-cure (platinum-catalyzed) reaction. When blended and cured as indicated, the resulting elastomer consists of cross-linked dimethyl and methyl-vinyl siloxane copolymers and reinforcing silica.

The Dow Corning QP1-2XX LSRs are available in a range of nominal hardness from 30 to 70, Durometer-Shore A. The elastomers can be used without any post cure; although, if necessary, this may be employed to stabilize the final properties.Furthermore, the cured elastomers are heat stable up to 204°C (400°F), can be autoclaved, and exhibit high gas permeability compared with most thermoset elastomers and thermoplastics.
General Information
Features
  • High Gas Permeability
  • No frost
  • Low viscosity
  • Workability, good
  • Fast molding cycle
  • Fast curing
  • Good coloring
  • High pressure heating resistance
  • Compliance of Food Exposure
Uses
  • Medical/nursing supplies
Agency Ratings
  • USP Class VI
Processing Method
  • Injection molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.11g/cm³ASTM D792
Viscosity 1
    Part A 197Pa·s
    Part B 161Pa·s
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A)41ASTM D2240
ElastomersNominal ValueUnitTest Method
Tensile Stress (100% Strain)1.30MPaASTM D412
Tensile Strength 8.00MPaASTM D412
Tensile Elongation (Break)540%ASTM D412
Tear Strength 237.5kN/mASTM D624
Note Message
1 .10/s
2 .B mould
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