Corrosion protection
Effect pigments, aluminium pigments
In functional coatings, it is less the visual effect than the functional properties of the metallic pigments which is the deciding criterion. Corrosion-protection systems are an outstanding example. The lamellar structure of metallic pigments provides effective “barrier protection”. The reflection that results from floating leafing pigments also provides protection against UV and IR radiation. In addition to the barrier function, the lamellar shape of zinc pigment particles offers an extra cathodic or electrochemical protection.
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PP aluminium powders
PP aluminium powders are extremely brilliant, polished leafing pigments in the particle-size range of approximately 10-20 µm.
They are used for decorative and industrial coatings, as well as for the coloring of plastics. The relevant safety regulations must be adhered to when using aluminium powders.
| D 50 value [µm] | Solid content | Application | |
|---|---|---|---|
| 20 | 100 |
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| 17 | 100 |
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| 13 | 100 |
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| 10 | 100 |
|
Aquasilber®
These are VOC free, stabilized leafing aluminium pastes, available in a particle size of approximately 10-20 µm.
They are used for all industrial, decorative and functional, water-based coating applications which require a high-grade, metallic chrome effect.
| D 50 value [µm] | Solid content | Solvent | Application | |
|---|---|---|---|---|
| 20 | 65 +/- 2 % | water |
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| 17 | 65 +/- 2 % | water |
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| 13 | 65 +/- 2 % | water |
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| 10 | 65 +/- 2 % | water |
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| 13 | 65 +/- 2 % | water |
|
EM
EM aluminium pastes are standard, white spirit-based leafing materials and come in a particle-size range of approximately 10-20 µm.
They are mainly used in decorative and industrial coatings and, in particular, for functional coatings which require a high degree of barrier protection (corrosion-protection coatings) or high light-reflecting properties ( e.g. roof coatings).
| D 50 value [µm] | Solid content | Solvent | Application | |
|---|---|---|---|---|
| 20 | 65 +/- 2 % | white spirit |
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| 17 | 65 +/- 2 % | white spirit |
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| 13 | 65 +/- 2 % | white spirit |
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| 10 | 65 +/- 2 % | white spirit |
|
Metaface®
Metaface® aluminium powders that provide high brilliance, good coverage and excellent printability. They are available as powders, water-based pastes or UV pastes.
| D 50 value [µm] | Solid content | Application | |
|---|---|---|---|
| 13 | 100 |
|
Polytop®
Polytop® are conventional, i.e white-spirit/aromatic-solvent-containing, non-leafing aluminium pastes.
A wide particle-size distribution ensures good covering power. They are referred to as “economy qualities” and are therefore chiefly used in general industrial coatings.
| D 50 value [µm] | Solid content | Solvent | Application | |
|---|---|---|---|---|
| 14 | 65 +/- 2 % | white spirit |
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| 11 | 65 +/- 2 % | white spirit |
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If you would like further information we would be happy to assist you.
