Vulcan

LSR material family

General purpose platinum cure LSR

High volume, two component liquid silicone families for flexible precision parts.

8 property checks5 commercial examples11 supplier paths

Property screen

Useful ranges and selection cautions.

These are family level planning ranges. The selected commercial grade and its current data sheet control the design.

Typical densityAbout 1.08 to 1.16 g/cm³
HardnessAbout Shore 20A to 80A
Mix ratioMost molding grades specify 1:1 by supplier method
TemperatureOften minus 50 to 200 °C
ShrinkageCommonly about 2 to 3%, grade dependent
Compression setGood with correct cure and post cure
ViscosityLow viscosity before cure
Key cautionInhibition, flash, venting and cold deck balance

Typical applications

Where this family enters a shortlist.

  • Precision seals
  • Membranes and valves
  • Electrical boots
  • High volume flexible parts

Questions before approval

What can change the decision.

  1. What hardness, tear and set are required?
  2. Is post cure allowed?
  3. What substance could inhibit platinum cure?

Existing material names

Commercial families to start the search.

These names are examples within the broader family. They are not presented as equivalent grades or approved substitutions.

WACKER ELASTOSIL LR 3003Dow SILASTIC 3D and QP familiesMomentive Silopren LSRElkem BLUESIL LSRShin-Etsu KEG

Supplier directory

11 sources with related portfolios.

Open current supplier data and filter for the exact chemistry, reinforcement, hardness, cure, certification and regional supply requirement.

WACKERELASTOSIL LR, SILPURAN and LUMISILDowSILASTIC and XIAMETER LSRMomentiveSilopren and LIM LSRElkemSILBIONE and BLUESIL LSRShin-EtsuKEG liquid silicone familiesKCC SiliconeIndustrial and specialty LSRNuSilHigh purity medical and aerospace siliconesDuPont LiveoHealthcare silicone elastomersCHTCENUSIL and specialty liquid silicone rubberStockwell ElastomericsCustom LSR materials and molding supportSIMTECLSR material and application engineering

Continue the engineering screen.

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