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New nanosilica filled one component UV curable epoxy called UV22 has been
introduced by Master Bond Inc. This compound has been developed for
coating, sealing and encapsulation applications. It features superb
abrasion resistance, excellent optical clarity, low shrinkage and high
physical strength properties. UV22 cures rapidly at room temperature upon
exposure to a UV light source and is not oxygen inhibited. It has a
service operating temperature range of -60°F to 300°F (-50°C to150°C). Post
curing the UV22 material enhances its temperature resistance profile.
Adding heat (195°F-257°F for 30 minutes) will give it a glass transition
temperature of 275°F, far higher than traditional UV systems. The post
curing is also effective in increasing its chemical resistance to solvents,
acids and bases.
UV22 is easy to use. Despite the relatively high percentage of
nanoparticles (>35%) added to the UV22, it still retains high transparency
and low viscosity without sedimentation due to the agglomerate-free
colloidal dispersion of the nanoparticles in the resin. UV22 has a Shore D
hardness of >80 and a tensile strength of >4,600 psi. It has a refractive
index of 1.52 and shrinkage of 1-2%. Its electrical insulation properties
are superior.
UV22 is 100% reactive and contains no solvents or diluents. It is
available for use in pint, quart, gallon and 5 gallon containers. It is
also available in syringe applicators. Higher viscosity versions are also
available.
About Master Bond:
Master Bond is a manufacturer of high performance adhesives, sealants,
coatings, potting and encapsulation compounds and impregnation resins. The
product line offers over 3,000 grades of specially designed formulations of
acrylics, anaerobics, cyanoacrylates, epoxies, latex, polyamides,
polyurethanes and silicone systems to provide an optimal solution for even
the most extreme applications.
For further information please visit our website at www.masterbond.com or
contact: James Brenner. Phone: 201-343-8983 Fax: 201-343-2132 E-mail:
technical@masterbond.com
Cover Story Material selection for plastic design.
Major Focus
Automotive applications.
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