Product information "NOA 74 Optical Adhesive 10g syringe"
Viscosity at 25°C: 80-95 cps, Refractive Index: 1.52
Norland Optical Adhesive 74(10g syringe) is a clear, colorless, liquid photopolymer that will cure when exposed to ultraviolet light. Since it is a one part system and 100% solids, it offers many advantages in bonding where the adhesive can be exposed to UV light. The use of NOA 74 eliminates premixing, drying or heat curing operations common to other adhesive systems. Curing time is remarkably fast, and is dependent upon the thickness applied and the amount of ultraviolet light energy available.
NOA 74 is designed to give the best possible optical bond when using plastic to plastic or plastic to glass substrates. NOA 74 has excellent adhesion to cellulose acetate butyrate (CAB) and glass and good adhesion to CR-39, polarized film, nylon, polycarbonate and acrylics.
Typical Properties of NOA 74
Hardness - Shore D
Water Absorption (ASTM D 570-63)
Tensile Strength PSI
Elongation at failure
Shelf life of the liquid is at least 4 months from the date of shipment if stored in a cool (5-20C), dark place in the original container. If refrigerated, allow the adhesive to come to room temperature prior to use.
10 g Syringe
Viscosity at 25°C (cps):
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