MY Polymers

LM-142-NI-10: Optical Coatings / Adhesives

LM-142-NI-10 is low modulus (highly flexible) low refractive index UV curable coating/adhesive which do not require inert atmosphere during the curing process. The material is optimized for curing by both UV LED and UV Mercury lamps. This experimental series contain products of different modulus. This product is characterized by excellent adhesion to silica type products and good retention of adhesion after exposure to water and 85°/85RH conditions.




  Liquid state
RI liquid at 589 nm 1.4039
Density, g/cm3 1.38
Viscosity, cps @ 25°C 5400
color Clear, yellow
  Cured state
RI (cured) at 589 nm 1.415
RI (cured) at 950 nm 1.407
Adhesion to silica,

90° Peel, g/cm * (@5cm/min)

Elastic modulus,  MPa (@ 45% RH, 24º) 22
Tensile Strength, MPa 4
Elongation to Break 100

*   Very strong adhesion. Adhesion is reduced by slowing speed to avoid cohesive failure.

The product is supplied pre-filtered to below 1 micron particles.



  1. Avoid unnecessary exposure to ambient light and moisture.
  2. Long term storage should be at ambient conditions of 10-30ºC.
  3. The shelf life is 6 months in sealed bottles.


Curing can be achieved by any source of UV at 300-400nm. Typically, a dose of 1000-2000 mJ/cm2 is necessary.

Keep the bottle closed in all times when not in use. The material is sensitive to moisture.  Absorption of moisture may cause haze.

Safety: Refer to the SDS


Note: The above information is believed to be reliable, but it is not to be taken as a representation, warrantee or guarantee. Customers should perform their own QC, QA and evaluation tests.


Updated: June 4, 2020