A combination of superior physical strength and cure rates faster than those of competing epoxy adhesives makes Master Bond UV16 suitable for demanding bonding, sealing, and coating applications. The standard formulation has a viscosity of 200–400 cP, and a higher-viscosity version (UV16TK) is also available. A reactive epoxy, UV16 is uninhibited by oxygen, and does not release any solvents or volatiles during curing. It adheres well to a wide array of substrates, including many plastics, metals, and glass. It will cure with thicknesses up to 0.125 in., and its 2–3% shrinkage rate is lower than that of most free-radical UV adhesives. Once cured, its tensile strength exceeds 4,100 psi and its Shore D hardness is over 75. Post-curing UV16 to 125°F for 30 minutes gives the adhesive a glass transition temperature of 135°F and enhanced chemical resistance, especially against acids and solvents.
Master Bond UV16
Master Bond, Inc.