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Advantages of Neuburg Siliceous Earth in Coatings Presentation: Author: Siegfried Heckl

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Material Description Structure and Mineralogical Composition

The unique morphology of Neuburg Siliceous Earth is due to its composition as a natural combination of cryptocrystalline and amorphous silica and lamellar kaolinite.

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+ Cryptocrystalline and amorphous silica

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Kaolinite

Neuburg Siliceous Earth

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Material Description Structure and Mineralogical Composition

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Benefits in Coatings

Properties of the filler

Effect in Coatings Systems • Quick and good incorporation • Excellent dispersability

Loose structure, Small particle sicze

• Very little tendency towards sedimentation • No hard sediment • Favorable rheological properties

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Benefits in Coatings

Properties of the filler

Effect in Coatings Systems • Matting effect • Rapid drying

Loose structure, Small particle sicze

• Breathability • Water vapor permeability • Good pigment dispersion (spacer effect)

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Benefits in Coatings

Properties of the filler

Effect in Coatings Systems • Good corrosion protection • Good edge covering

Loose structure, Small particle sicze

• Good sanding • Excellent stone impact resistance • Good mechanical properties

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Benefits in Coatings

Properties of the filler

• Non-ground filler • Low grit content

Very low electrical conductivity (< 100 µS)

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Effect in Coatings Systems

Low abrasivity

• No disturbing electrolytes • Good stability in electrophoretic applications

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Benefits in Coatings

Properties of the filler

Effect in Coatings Systems

No buffer effect

Good stability in waterbased systems

Hardness

â&#x20AC;˘ Scratch resistance â&#x20AC;˘ Abrasion resistance

Chemically inert

Weather and chemical resistance, especially acids

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Benefits in Coatings

Properties of the filler

Effect in Coatings Systems

Similar refraction index as binder

Very good transparency (for clear lacquer systems)

Surface treatment possible

Good bonding between filler to polymer

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Advantages of NSE in Coatings