Product Description:
NOA139 is a clear liquid adhesive that cures when exposed to long-wave ultraviolet light. It is recommended for glass-to-glass bonding and also bonds well to cellulose acetate butyrate. NOA139 cures under UV light from 315 nm to 395 nm . Full cure requires 6 joules /cm2 of energy. When used as a coating, it exhibits oxygen inhibition. To overcome this inhibition, cure in an inert environment such as nitrogen.
NOA139 Technical Data:
Refractive index: 1.37 before cure, 1.388 after cure;
Viscosity: 865 cps;
Hardness: 45D;
Operating temperature range: -15° C to 90° C
Modulus (psi): 14,850
Elongation at break: 51
Tensile strength (psi): 807
NOA139 Light Transmission:
