Product information "NOA 138 Optical Adhesive 1oz bottle"
Viscosity at 25°C: 20-40 cps, Refractive Index: 1.38
Norland Optical Adhesive 1.38 is clear liquid adhesive that will cure when exposed long wavelength ultraviolet light. NOA 1.38 is recommended for bonding for glass to glass. Adhesion is also good with cellulose acetate butyrate. NOA 1.38 is cured by ultraviolet light between 315 to 395 nm. Full cure requires 6 Joules/cm2. The adhesive exhibits oxygen inhibited and must be cured under an inert atmosphere if used as a coating to fully cure the adhesive.
Typical Properties of NOA 138
Keep NOA 138 in a cool (5-22°C) dark place. If refrigerated, allow the adhesive to come to room temperature before using.
Viscosity at 25°C (cps):
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