Polymer Systems
Technology Limited

Advanced Engineering

Optoelectronics:
Electronics:

LS-6946

Adhesives/Sealants

Optical Thermoset

DESCRIPTION
  • Two-part, optically clear, silicone system that pours
  • Cures at room temperature or rapidly with heat
  • Offers good physical properties and a broad operating temperature range
  • 1:1 Mix Ratio (Part A:B)
APPLICATION
  • For bonding, casting or injection molding of high performance optical components
  • For applications requiring index matching at 1.46
PROPERTIES
Typical PropertiesResultMetric Conv.
Uncured:
AppearanceTranslucent-
Viscosity, Part A40,000 cP40,000 mPas
Viscosity, Part B35,000 cP35,000 mPas
Work Time2 hours minimum-
Cured : 30 min at 150°C (302°F)
Specific Gravity1.14-
Durometer, Type A30-
Tensile Strength675 psi4.7 MPa
Elongation275 %-
Tear Strength40 ppi7.1 kN/m
Lap Shear (primed w/ LS1-3200)510 psi3.5 MPa
Coefficient of Linear Thermal Expansion,
above Tg (-80 to 250°C)360 ppm/°C-
TGA Takeoff (1% weight loss)715°F365°C
Extractable IonicsBelow MIL-STD-883E-
Young's Modulus425 psi2.9 MPa
Dielectric Strength510 volts/mil20.1 kV/mm
Refractive Index, 589 nm1.46-
Refractive Index vs. Temperature, 589 nm-3.3 x 10-4/°C-
Refractive Index vs. WavelengthSee Profile PDF-
Optical Absorption vs. WavelengthSee Profile PDF-
Operating Temperature Range-85 to 465°F-65 to 240°C

Packaging

50 Gram Kit
50 ml SxS Kit
2 Pint Kit (910 g)

Warranty

12 Months

Product Profile - Full Details Product Profile
Material Safety Data Sheet EU EN Material Safety Data Sheet

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