Patent ID: 7399117

Claim:
A method for measuring a factor of ultraviolet (UV) curability of a UV curable material, comprising the steps of: establishing a precise thickness of UV curable material by placing a thickness control device in a test area on a surface of a heat flux sensing device; providing an insulating panel, wherein the heat flux sensing device is mounted on the insulating panel; placing the UV curable material in, about or on the thickness control device; flattening the UV curable material to the thickness of the thickness control device; placing a mask defining a hole with a predetermined area over the test area; directing UV light through the hole onto the flattened UV curable material beneath the hole in the mask for a predetermined time period to cure the flattened UV curable material; while measuring (1) the peak temperature generated by the exothermic reaction that takes place during curing of the flattened UV curable material, (2) the time to peak curing temperature of the flattened UV curable material; and (3) the total heat generated by the exothermic reaction that takes place during curing of the flattened UV curable material.