Filler-related advantages:
Neuburg Siliceous Earth and Calcined Neuburg Siliceous Earth
- low moisture content, low moisture absorption
- high fineness
- excellent dispersion properties
- very low sieve residue
- high brightness and color neutrality
- high hardness
- temperature resistance
- polymer-specific adaptation via surface treatment
Effects in films:
- low coefficient of friction, antiblocking
- good transparency/high light transmission in the visible range
- high gloss or matting
- low haze or higher haze
- hardly any adsorption of additives thanks to relatively small surface area
- improvement of film processing/manufacturing properties by increasing modulus
- IR barrier