CSI-PUV1
Specification

Appearance	White powder
Melting range	128.0 ~ 132.0℃
Heat loss	0.5 % max.
Ash content	0.1 % max.
Assay	99.0 % min
Transmittance	440nm ≥94 500nm ≥97

Characteristics
CSI-PUV1 is an ultraviolet light absorber (UVA) of the hydroxyphenol benzotriazole class, imparting good light stability to a wide variety of polymers during its use.

Application
CSI-PUV1 provides ultraviolet protection in a wide variety of polymers including styrene homo- and copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other halogen containing polymers and copolymers (e.g. vinylidenes), acetals and cellulose esters. Elastomers, adhesives, polycarbonate blends, polyurethanes, and some cellulose esters and epoxy materials also benefit from the use of CSI-PUV1.



● UV Spectrometer