SpectrAl® 51 by Cabot is fumed alumina with a low surface area and high purity. It is characterized by high purity, aggregated structure, submicron particle size, low bulk density, positive surface charge. It provides excellent gloss, color gamut, coating transparency, and water fastness. It enhances the durability of polyurethane clearcoats. The addition of the hard alumina particles imparts excellent scratch and abrasion resistance to the coating. SpectrAl® 51 is also suitable for use in microporous coatings for inkjet printable media.
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SpectrAl® 51 properties
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| Properties | Value & unit | Test condition | Test method |
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| Density, Bulk | 0.0 Visible After Login | Visible After Login | Visible After Login |
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