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Hostavin® B-CAP™

Non discoloring UV absorber for plastic materials

Edition Number :
4
Edition Date :
October 17, 2014
Hostavin B-CAP is a UV absorber with pronounced absorptivity in the high energy (low wavelength) range of the UV spectrum.

Benefits

  • Hostavin B-CAP is a unique UV absorber with excellent absorption especially in the UVB-range
  • Hostavin B-CAP is colorless and even in high concentration in the resin does not lead to any discoloration
  • It does not form colored complexes with metal ions as many other UV-absorbers do

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Hostavin® B-CAP™

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Safety

Hazards
Classification according CLP regulation (Regulation (EC) No. 1272/2008, as amended).
    Skin sensitization, Cat. 1
For further information please refer to the Material Safety Data Sheet.

Physical Properties

Melting Range  137-139 °C
Solubility Soluble in ethyl acetate, dichloromethane, acetone
Slightly soluble in low alcohols
Insoluble in water
Absorption The absorption maximum for Hostavin B-CAP is at 320 nm with the
molar extinction coefficient more than 37000 [l/mol·cm]

Applications

Hostavin B-CAP is recommended as UV absorber for plastic materials, particularly engineering plastics with high demands for transparency, such as polycarbonate and polyesters. It can be equally used also in PVC, styrenics, etc.

Packaging and Handling

Delivery form
Powder

Packaging
Fibre drum 50 L with laminated inliner
Pallet 225 kg (9 fibre drums)

Storage
Minimum shelf life is 3 years from date of shipping when properly stored.
The product should be stored dry and at room temperatures.