Optically Clear UV Curable System


Specially formulated to optimize bond strength, Master Bond UV15-42C is a UV curable system for bonding, sealing and coating applications. This smooth paste can be applied vertically without sagging. As an optically clear compound, it is often used in the fiber-optic, optical, electronic, aerospace and specialty OEM industries.This one part system bonds well to a wide variety of substrates including glass, metals, composites, rubbers and most plastics. Adhesion to acrylic and polycarbonates is exceptional. UV15-42C also features a tensile strength of 5,000-6,000 psi and a tensile modulus of 250,000-300,000 psi at room temperature. Its toughness enables it to withstand thermal cycling as well as mechanical shock. UV15-42C is also resistant to chemicals such as water, oils, cleaning agents, acids and bases. 

It cures readily in 10-30 seconds upon exposure to a UV light source emitting a 320-365 nm wavelength with an energy output of 20-40 milliwatts/cm2. UV15-42C is not oxygen inhibited and will cure in thicknesses up to 1/4 inch. This electrically insulative, dimensionally stable system has low shrinkage upon curing. UV15-42C is serviceable from -65°F to +300°F and is available for use in syringes and cartridges. It can also be purchased in 1/2 pint, pint and quart containers.


  • can be applied vertically without sagging
  • tensile strength of 5,000-6,000 psi
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