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T-NOA81 - Fast Curing Optical Adhesive, 1 oz.

Fosco Connect Part No.: T-NOA81

  • $ 68.00 or

T-NOA81 - Fast Curing Optical Adhesive, 1 oz.


  • Low Shrinkage (1.5%) and Low Stress
  • Strong Glass-Metal, Glass-Glass, and Glass-Plastic Bonds
  • Recommended UV Curing Intensity >2 mW/cm2 @ 365 nm
  • Dispenser Bottle Contains 1 oz. (NOA Products) or 100 g (NBA107) of Adhesive

Norland Optic Adhesives are clear, one part adhesives that contain no solvents. When exposed to UV light, they gel in seconds and cure fully in minutes to give a tough resilient bond. Each of the six formulas listed below has been optimized to provide excellent bonding for specific applications. To cure these optical adhesives, they must be exposed to UV light.

Shelf Life
These UV-curing adhesives have a shelf life of approximately 8 months. This time frame begins on the date the epoxy was packaged at the manufacturer. Upon receipt by the end user, Our guarantees that the remaining shelf life will be at least 3 months.

Common Specifications

  • Cure: UV
  • Color: Clear
  • Linear Shrinkage: 1.5%
  • Coefficient of Thermal Expansion at Room Temperature: 220 x 10-6 in/in-°C
  • Recommended Uses Fast curing adhesive for tacking, a hard resilient bond
  • Viscosity @ 25 °C 300 CPS
  • Index of Refraction, N 1.56
  • Tensile Strength 4,000 psi
  • Shore D Hardness 90
  • Net Weight 1 ± 0.07 oz (28 ± 2 g)


Glass-Metal Excellent
Glass-Glass Excellent
Glass-Plastic Fair


Item Description

T-NOA81 is an extremely fast curing adhesive. NOA81 has similar qualities to the NOA61, yet it can cure 3 to 5 times faster. However, curing times are dependent on the UV light source. Not only is it a faster curing adhesive, it is also tougher and stronger. NOA81 is recommended for applications that require extra toughness or speed in curing. The refractive index of the cured polymer typically has a value of 1.56. Like NOA61, it may also be polished.



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