Norland Optical Adhesive 61

 

The following are typical properties of NOA 61:

Liquid

Color (APHA) 80
Viscosity at 25° C 300-450 cps
Refractive Index (liquid) 1.527
Density (gm/cc) 1.231
Surface Tension (dynes/cm) 40.0
Flash Point 175°C

Cured Film

Modulus (psi) 135,000-160,000
Tensile (psi) 2,800-3,500
Elongation at Failure 35%
Shore D Hardness 85
Density (gm/cc) 1.29
Water Vapor Permeability (gm/100 sq. in./24hrs/mil) 1.48
Water Absorption 0.16%
Linear Shrinkage 1.5%
Dielectric Constant (1 MHz) 4.04
Dissipation Factor (1 MHz) 0.045
Volume Resistivity (0hm-cm) 1.0 x 10 to the 15
Surface Resistivity (Megohms) 1.0 x 10 to the 9
Dielectric Strength (volts/mil) 980
Arc Resistance (sec) 95.6

 Wavelength (nm.) Index
643.8 1.5562
589.6 1.5594
546.1 1.5634
480.0 1.5691
435.8 1.5754

 

Coefficient of Thermal Expansion as a Function of Temperature

 

VISCOSITY vs. TEMPERATURE

 

 

 

The Formula for Dispersion of the Refractive Index of NOA 61

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