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USP Class VI Adhesives
USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

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Momentive Performance Materials Silopren™ LIM 8040 Liquid Silicone Rubber - Healthcare  (discontinued **)
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: LSR elastomers are a two-component, platinum (addition/heat) curable, and pumpable silicone elastomer that can be molded and cured with very fast cycle times, at elevated temperatures. The molding process allows for complex part geometry and exact dimensions. LSR elastomers are generally suitable for short cycle time injection and full automatic flash-less processing. Color pastes are available to pigmenting addition cure productions of LSR's.

All LSR grades are platinum cured materials which are mixed in a 1:1 ratio by weight.

The distinctive properties of silicone elastomers - purity, clarity, strength - coupled with ease of processability, have resulted in their use in a broad range of medical device applications. Silicone materials exhibit exceptional stability over a wide range of temperatures, lending themselves to use in applications requiring repeated sterilization performance.

Typical applications include, but are not limited to:

  • Dental / surgical devices
  • Diagnostics / imaging
  • Fluid and drug delivery devices
  • Orthopedics / prosthetics
  • Scar management
  • Septa / stoppers / laboratory accessories
  • Medical tubing
  • Wound drains and bulbs
  • Sterilization mats
  • Pharmaceutical closures
  • Instrument grips
  • Dialysis o-rings
  • Positioning devices
  • Catheters
  • Seals / o-rings / valves
  • Respiratory / anesthesia
  • Medical equipment keypads

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.12 g/cc
Linear Mold Shrinkage 0.027 cm/cmvulcanized 10 sec at 200°C; Without post-cure
 0.035 cm/cmvulcanized 10 sec at 200°C then post-cured
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 39
Tensile Strength 7.00 MPa
Elongation at Break 640 %
Tear Strength 36.0 kN/mDie B
Compression Set 20 %Post cured
 
Optical PropertiesOriginal ValueComments
Transmission, Visible 80 %transparent; thickness unknown
 
Processing PropertiesOriginal ValueComments
Nozzle Temperature 20.0 °Ccool nozzle and cylinder to prevent premature vulcanization
Mold Temperature 140 - 230 °Cshort vulcanization time required (a few seconds)
Injection Pressure 5.00 - 15.0 MPadepends on feed channel
Hold Pressure 5.00 MPa
 
Compliance PropertiesOriginal ValueComments
FDA YesFDA Indirect food contact - Rubber articles intended for repeated use - FDA Reg 21CFR177.2600
USP Class VI YesUSP Class VI methods: Intramuscular implantation, intracutaneous injection, & systematic injection
 
Descriptive Properties
AppearanceTransparent

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Momentive Performance Materials Silopren™ LSR 2740 Liquid Silicone Rubber - Healthcare
Dow DOWSIL™ MS-4022 Optical Grade Moldable Silicone

PGE8V757 / 109017

USP Class VI Adhesives
USP Class VI Approved Adhesives for Medical Device Applications
Master Bond’s biocompatible adhesives are designed to meet the needs of medical device manufacturers. Compounds withstand various types of sterilization methods.

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