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Momentive Performance Materials Siloprenâ„¢ LSR 4040 Liquid Silicone Rubber - Healthcare

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone , Silicone Rubber
Manufacturer Momentive Performance Materials (Former GE Silicones)
Trade Name Silopren™
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Momentive Performance Materials Siloprenâ„¢ LSR 4040 Liquid Silicone Rubber - Healthcare.pdf
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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 devicesDiagnostics / imagingFluid and drug delivery devicesOrthopedics / prostheticsScar managementSepta / stoppers / laboratory accessoriesMedical tubingWound drains and bulbsSterilization matsPharmaceutical closuresInstrument gripsDialysis o-ringsPositioning devicesCathetersSeals / o-rings / valvesRespiratory / anesthesiaMedical equipment keypads
Physical Properties Metric English Comments
Specific Gravity 1.12 g/cc
1.12 g/cc
Linear Mold Shrinkage 0.027 cm/cm
0.027 in/in
vulcanized 10 sec at 200°C; Without post-cure
0.035 cm/cm
0.035 in/in
vulcanized 10 sec at 200°C then post-cured
Mechanical Properties Metric English Comments
Hardness, Shore A 40
40
Tensile Strength 9.00 MPa
1310 psi
Elongation at Break 750 %
750 %
Tear Strength 25.0 kN/m
143 pli
Die B
Compression Set 25 %
25 %
Post cured
Optical Properties Metric English Comments
Transmission, Visible 80 %
80 %
transparent; thickness unknown
Compliance Properties Metric English Comments
FDA Yes
Yes
FDA Indirect food contact - Rubber articles intended for repeated use - FDA Reg 21CFR177.2600
USP Class VI Yes
Yes
USP Class VI methods: Intramuscular implantation, intracutaneous injection, & systematic injection
Processing Properties Metric English Comments
Nozzle Temperature 20.0 °C
68.0 °F
cool nozzle and cylinder to prevent premature vulcanization
Mold Temperature 140 - 230 °C
284 - 446 °F
short vulcanization time required (a few seconds)
Injection Pressure 5.00 - 15.0 MPa
725 - 2180 psi
depends on feed channel
Hold Pressure 5.00 MPa
725 psi
Descriptive Properties Value Comments
Appearance Transparent
BfR product is compositionally compliant
Recommendation XV Silicones; post cured (4h/200°C)
European Pharmacopeia compliant
Eur. Pharmacopeia VI.1.3.2.
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