Product information "NOA 68T Optical Adhesive 1oz bottle"
Refractive Index 1.54; 20,000-25,000 cps Viscosity at 25°C
Norland Optical Adhesive 68T is a clear, colorless, high viscosity 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 of optical materials where the bonding surface can be exposed to light. The use of NOA 68T eliminates premixing, drying and heat curing operations common to other optical adhesive systems. Curing time is remarkably fast, and is dependent upon thethickness applied and the amount of ultraviolet light energy available.
The NOA 68T is designed to give improved adhesion to many plastics such as acrylic, polycarbonate and celluloseacetate butyrate. In addition to plastics,NOA 68T has good adhesion to glass and metals and can be used to bond combinations of the three. Suggested uses for NOA 68T include bonding compound plastic lenses, laminating polarizedfilm between glass or plastic, mounting plastic lenses in metal or plastic mounts and bonding cover glasses. NOA 68Thas a high viscosity which allows the user to screen printed onto substrates.
Typical Properties of NOA 68T
Elongation at Failure
Hardness - Shore D
Shelf life of the liquid is at least 4 months from the date of shipment if stored in a cool (5-22° C), dark place in the original container. If refrigerated, allow the adhesive to come to room temperature prior to use.
1 oz Bottle
Viscosity at 25°C :
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