Low viscosity, one component, UV curable epoxy based system

Key Features

  • Good physical strength properties
  • Low shrinkage upon curing
  • Cationic curing system, no oxygen inhibition
  • Passes NASA low outgassing tests

Product Description

Master Bond UV16 is a low viscosity, high strength epoxy based UV curable system for bonding, sealing and coating. It is 100% reactive and does not contain any solvents or other volatiles. It also exhibits no oxygen inhibition. UV16 will cure quickly and easily when exposed to a UV light source with a wavelength range between 320-365 nm, with the optimum at 365 nm. The energy required is typically 20-40 milliwatts per cm². UV16 is highly reactive and will cure exceptionally fast when exposed to UV light. The rate of cure depends upon the distance of the light from the material being cured, the thickness of the section and the intensity of the light source. It typically cures in thicknesses of 0.001-0.002 inches up to 0.120 inches. Thinner sections will cure in a few seconds while thicker sections will normally cure in 30-60 seconds. UV16 has excellent resistance to a wide variety of chemicals including water, acids, bases, fuels and many solvents. It has superb physical strength characteristics and electrical insulation properties. UV16 has superior adhesion to a wide variety of substrates including plastics, glass and many metals. UV16 has stellar optical clarity and light transmission properties.

Cationic systems, such as UV16, tend to have much higher temperature resistance than other UV type systems. The glass transition temperature (Tg) with a straight UV cure is 95-100°C and when post cured for 30 minutes at 125°C, the Tg is 135-140°C. This post cure also enhances its chemical resistance. The service temperature range is -80°F to +400°F. It is widely used for a variety of applications in the optical, optoelectronic, aerospace and related industries.

Product Advantages

  • One component system; no mixing needed
  • Very low viscosity, easily applied
  • Cationic curing system, no oxygen inhibition
  • Superior temperature resistance
  • Outstanding optical clarity
  • High bond strength; excellent adhesion to surface treated metals, glass and many plastics
  • Excellent dimensional stability

Industrial Certifications

ASTM E595 Compliant

Meets EU Directive 2015/863





UV16 is available is various sizes and units to accommodate customer's needs.

Case Studies

In several published research articles, patents, and manufacturers’ specifications, scientists and engineers have identified UV16 for use in their applications due to its unparalleled performance in one or more areas. The table below highlights two research applications that use Master Bond UV16.

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