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LUMISIL®

Silicone Solutions for High-Performance LEDs

The LUMISIL® product range consists of high-performance silicones designed to meet the most exacting demands in the fields of LED production, secondary optics and lighting technology.

LUMISIL® products all offer compelling properties: they support highly efficient, low-cost production and feature optimized flow and crosslinking behavior as well as high light resistance. We supply LUMISIL® in various forms for processing to lenses by dispensing/jetting, transfer molding and injection molding.

The refractive index determines the choice of a material for a lens in a given application. We supply LUMISIL® in both refractive index variants:

  • High refractive index (HRI)
  • Normal refractive index (NRI)

HRI LUMISIL® combines high light efficiency with low gas permeability, which protects the inside of the LED against corrosion. HRI grades are therefore ideal for high-end applications in TVs and displays, as well as in car headlamps. LUMISIL® HRI silicones are based on a technology developed and patented by WACKER.

WACKER offers a number of NRI silicones that are highly efficient to process. NRI LUMISIL® grades are great for high-performance LEDs because they withstand large amounts of heat and radiation. One of many application areas here is general lighting, where costs and processing efficiency are key considerations.

Product Recommendations

Products
Technical data
Product properties
Viscosity, dynamic Tear strength Hardness Shore A Hardness Shore 00 Tensile strength Elongation at break Product Rheology Crosslinking Property Vulcanizate
LUMISIL® 010 A/B - - - - - - - - - - - - Flowable Fast curing under heat, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 010 LP A/B - - - - - - - - - - - - Flowable Fast curing under heat, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 015FC A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 100 A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 100 OD A/B - - - - - - - - - - - - Flowable Fast curing under heat, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 101 A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 101 FC A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature Highly transparent
LUMISIL® 101RT A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature Highly transparent
LUMISIL® 102 A/B - - - - - - - - - - - - Flowable Fast curing under heat, Two-component, Addition Curing Highly transparent
LUMISIL® 102FC A/B 2000 mPa·s[1] 2000 mPa·s[1] - - - - 40 - 60[5] 40 - 60[5] - - - - Flowable Fast curing under heat, Two-component, Addition Curing Highly transparent
LUMISIL® 103 HT A/B - - - - - - 45 - 65[6] 45 - 65[6] - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 105 A/B - - - - - - - - - - - - - Fast curing under heat, Two-component, Addition Curing -
LUMISIL® 105 FC A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 105 HP A/B - - - - - - - - - - - - Flowable Fast curing under heat, Two-component, Addition Curing Highly transparent
LUMISIL® 108 A/B - - - - - - - - - - - - Flowable Fast curing under heat, fast curing at moderate temperatures, No chemical shrinkage, Two-component, Addition Curing Highly transparent
LUMISIL® 201 FLEX UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 202 UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 203 FLEX UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 203 Gel UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 203 IM UV A/B - - - - - - - - ≥ 0.15 MPa ≥ 0.15 MPa ≥ 550 % ≥ 550 % Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 203 UV A - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 203 UV P A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 205 FLEX UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 205 Gel UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 205 UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 206 IM UV A/B - - - - - - - - - - ≥ 600 % ≥ 600 % Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 210 UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 245 GEL FLEX UV A/B 60000 - 70000 mPa·s[2] 60000 - 70000 mPa·s[2] - - - - - - - - - - - No chemical shrinkage, Two-component, UV curing, Addition Curing -
LUMISIL® 245 GEL UV A/B 60000 - 70000 mPa·s[3] 60000 - 70000 mPa·s[3] - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 245 UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 245 UV P - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 307 IM UV A/B - - - - - - - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 307 UV DAM A/B - - - - - - - - - - - - - No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 307 UV P A/B - - - - - - - - - - - - - No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 402 IM UV A/B - - - - 15 15 - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 402 UV A/B - - - - 27 27 - - - - - - - No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 403 IM UV A/B - - - - 20 20 - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 405 IM UV A/B - - - - 55[9] 55[9] - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 405 UV A/B - - - - 60[9] 60[9] - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 409 UV A/B - - - - 45 45 - - - - - - Flowable No chemical shrinkage, Two-component, UV curing, Addition Curing Highly transparent
LUMISIL® 903 A/B 9000 mPa·s[4] 9000 mPa·s[4] 6 N/mm[11] 6 N/mm[11] 55[10] 55[10] - - 5 N/mm²[7] 5 N/mm²[7] 100 %[8] 100 %[8] - - -
Legend
[1] Viscosity | 25 °C | 10 1/s ,  [2] Viscosity | 25 °C | 10 1/s | ISO 3219,  [3] Viscosity | 25 °C | ISO 3219,  [4] Viscosity, dynamic | 25 °C | 1 1/s | DIN EN ISO 3219,  [5] Hardness (Penetration, 9.38g hollow cone) | Cured for 1 hr at 65'C in a circulating air oven,  [6] Hardness (Penetration, 9.38g hollow cone) | Cure condition: 60'C, 1hr,  [7] Tensile strength | ISO 37 Type 1 / 23°C / t = 2 mm,  [8] Elongation at break | ISO 37 Type 1 / 23°C / t = 2 mm,  [9] Hardness Shore A | DIN 53505,  [10] Hardness Shore A | DIN ISO 48-4,  [11] Tear strength | ASTM D 624 B