• White pigments
• BLANC FIXE
• Wood protection
• HOMBITEC RM
  UV protection
• Colorstyling
• SACHTOPERSE for
  high-end coatings
• Sachtoperse for
  PCB coatings
• Barytes

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Sachtoperse: Ultrafine barium sulfate particles for PCB coatings

SACHTOPERSE, an ultrafine barium-sulfate-based functional additive permits innovative potentials for the optimization of paint properties. A special production process combined with extremely effective after-treatment (coating) guarantees extreme fineness and the product's low conductivity at consistently high levels.

Thanks to SACHTOPERSE's small particle diameter of less than 0.1 µm and its low refractive index, no loss of transparency or gloss in the coated surface occurs. On the contrary: The spherical geometry of the SACHTOPERSE particles means that gloss is actually enhanced in most cases. SACHTOPERSE is used for stabilization of organic and inorganic pigments against flocking. SACHTOPERSE adsorbs on the surface of the pigment and thus prevents agglomeration of the pigment particles. This stabilizing mechanism can be attributed on the one hand to purely steric effects and, on the other hand, this repelling action can also be explained by the electrostatic charge carried on the surface of the SACHTOPERSE. The use of SACHTOPERSE in particular permits effective improvement of the orientation of the aluminium flakes in metallic-finish paints.

This product's low binder requirement makes it possible to use SACHTOPERSE to precisely control the rheological properties of a paint or coating. SACHTOPERSE additive permits formulation of haze-free high-gloss paints, water-based paint systems, and paints and coatings with a high solids and low solvent content. The addition of a number of percentage points of SACHTOPERSE reduces the solvent content of the paint system significantly. An increased solids content in a paint reduces the readily-volatile solvents content significantly, thus contributing decisively to the achievement of a lower pollution burden for humans and the environment.

In addition to the powder products, we can also supply easy-to-use SACHTOPERSE HU-N-Aqua pastes and solvent-based SACHTOPERSE HU-N-LP pastes as ready-to-use system solutions. There is no need for dispersion of the ultrafine particles if these pastes are used.

If you'd like to know more about SACHTOPERSE, just download our product brochure in the form of a pdf file from our server, or order the information you require from Information on-line.