They also have a refractive index of 1.47. Both of these free-film isotropic adhesives are said to be firmer, less tacky and easier to convert than comparable adhesives.
3M Bonding Systems Div.: Optically clear adhesives
3M’s (St. Paul, MN) Optically Clear Adhesives 8161 and 9483, both for film laminations, are designed for the highest possible visual accuracy. They offer more than 99% light transmission with a haze level of less than 1%.
Aug 31st, 2000
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