
OPTICAL BRIGHTENERS
The REPI OPTICAL BRIGHTENERS are organic additives that absorb ultraviolet light and re-emit most of the absorbed energy in the visible spectrum, giving polyurethane products a brighter and fresher appearance. They are specifically designed for flexible, rigid, and semi-rigid foams, as well as for C.A.S.E. applications used in the automotive, furniture, footwear, construction, marine, and offshore industries. Suitable for neutral, white, and colored foams, REPI OBs can be used as a component in the polyol or added separately in the mixing head.
Additional Information
Excellent brightening action
Colour strength improvement
Compatible with polyether and polyester PU systems
Easy blending with polyol
Low viscosity
Standard: fusti da 25, 50 and 200 Kg
Appearance: liquid
Colour: neutral to yellow
Density: 1,10-1,15 g/cm3 at 20 °C
Viscosity AT 20 °C: 3.000-11.000 cP
Water Content: <0,50%
Shelf life: 12 months in sealed container
Suitable for standard liquid dosing units
LDR: 0,1 – 3% on polyol
REACH and ROHS compliance
Low fogging
Low VOC emissions
Amine free