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UV-1988 is a benzylidene malonate type UV stabilizer which absorbs strongly in the high energy (low wavelength) part of the UV spectrum.
UV-1988 belongs to the class of UV-B absorbers which protect the stabilized substrates from photodegradation by the matrix screening of UV light.
Addition of UV-1988 to plastics does not impair the colour of the stabilized polymers due to specific absorption range of the UV absorber.
The strong absorption of UV-1988 in the UV-B range assures an effective light stabilization of the plastics. In certain cases, combinations of UV-1988 with hindered amine light stabilizers give a further enhancement to the UV protection of polymers.
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