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Tinuvin® PUR 866

Technical Datasheet | Supplied by BASF
Tinuvin® PUR 866 by BASF is a high performance light stabilizer package. Offers UV stabilization for polyurethane systems (e. g. thermoplastic polyurethane (TPU), elastomers, RIM flexible foam applications). Shows excellent initial color, superior color retention during UV exposure, enhanced long-term–thermal-stability and easy dosability. Compatible with polyamides and other engineering plastics including aliphatic polyketone, styrene homo and copolymers, elastomers, TPE, TPV and epoxies as well as polyolefins and other organic substrates. Suitable for transparent or light colored TPU applications. Applications include synthetic leather. Use level of Tinuvin® PUR 866 ranges between 0.1 % and 2.0 % depending on substrate and processing conditions.
Product Type
Light Stabilizers / UV Absorbers
Chemical Composition
CAS Number
Physical Form
White to slightly yellow
Product Status
Applications/ Recommended for
  • PA, Nylon
  • TPE and TPV > TPU (or TPE-U)
  • Epoxy, Epoxide Resin
  • Other Thermoplastic > PEEK, PEKK,PEK…
  • Injection molding- thermosets > Reaction Injection Molding (RIM)
  • Foaming > Flexible foams
  • Polymer protection > Weatherability (UV, moisture, Oxygen...)
Food contact approval

Tinuvin® PUR 866 Properties


Value & Unit
Test Condition
Test Method
Specific Gravity
1.21 g/ml
(At 20°C)
Bulk Density
0.4 g/ml
Angle of Repose
47 °
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