Vulcan

LSR material family

Optical, electrically functional and special resistance LSR

Specialized transparent, conductive, flame and fluid resistant silicone families.

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.

TransmissionGrade and thickness specific
Refractive indexSupplier measured, wavelength dependent
YellowingHeat and light aging required
Tool surfaceOptical polish and cleanliness critical
ConductivityFilled grades use different processing controls
FlameExact thickness and listing required
Fluid resistanceFluorosilicone routes available
Key cautionContamination, bubbles, knit lines and optical measurement

Typical applications

Where this family enters a shortlist.

  • Lenses and light guides
  • Optical seals
  • Conductive keypads
  • Special fluid seals

Questions before approval

What can change the decision.

  1. What wavelength and transmission target apply?
  2. How will bubbles and optical distortion be inspected?
  3. Is the need optical, conductive, flame or fluid resistance?

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 LUMISILDow SILASTIC optical LSRMomentive Ultra Clear LSRElkem optical siliconeShin-Etsu optical KE series