NBA 107 Blocking Adhesive 10g syringe

NBA 107 Blocking Adhesive 10g syringe Norland Products
  • C007050-6
Content: 1 pcs

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Delivery time 10 workdays

Refractive Index 1.51 ; 350 cps Viscosity at 25°C NBA 107 (10g syringe) is a... more
Product information "NBA 107 Blocking Adhesive 10g syringe"

Refractive Index 1.51; 350 cps Viscosity at 25°C

NBA 107 (10g syringe) is a single component, UV curing adhesive used for temporary bonding of lenses to metal polishing mounts or where bonded components need to be easily separated in the future. The adhesive cures in minutes at room temperature by exposure to long wave UV light and eliminates the heat induced strain typical of the old fashioned hot pitch blocking methods. NBA 107 is specifically formulated to provide low shrinkage and low strain to further minimize any potential strain on the lens during the blocking process. Debonding is readily accomplished by heating in hot water with a small amount of detergent or wetting agent added or with acetone.

The adhesive cures only by exposure to UV light in the range of 350 to 380 nanometers. Recommended light sources include mercury lamps, sun lamps, fluorescent black lights and xenon lamps. Norland Products sells a variety of light sources optimized for curing our adhesive. The adhesive needs 5 joules per centimeter squared of long wave Uv energy to fully cure. Cure time will depend on the amount of UV energy the light source used generates at the surface of the adhesive.

Typical Properties of NBA 107


Solids 100%
Elongation at Failure 5%
Modulus (psi) 800
Tensile (psi) 76
Hardness - Shore D 15


Shelf life of the liquid is at least 6 months at room temperature if stored in the original container away from UV light. Prolonged skin contact should be avoided and affected areas should be washed with soap and water. Avoid prolonged vapor inhalation and use in a well ventilated area.


Norland Number: 107
Packaging: 10 g Syringe
Viscosity at 25°C : 350 cps
Refractive Index: 1.51
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