White fused alumina 1500# for rubber roller fillers
White Fused Alumina (WFA) 1500# is a high-performance, ultra-fine abrasive powder specifically engineered for use as a functional filler in rubber roller manufacturing. Produced from high-purity calcined alumina in an electric arc furnace and subsequently processed through precision classification, this white micro-grit offers an exceptional combination of hardness, thermal conductivity, and chemical inertness. It is the ideal material to enhance the mechanical properties and service life of rubber rollers used in printing, laminating, papermaking, and industrial conveying applications.
PHYSICAL PROPERTIES-White fused alumina 1500# for rubber roller fillers
| Specific Weight | 3.96 g/ cm3 |
| Mohs Hardness | 9.0 |
| Crystal form | α-Al2O3 |
| Melting Point | 2250℃ |
TYPICAL CHEMICAL ANALISIS [%]-White fused alumina 1500# for rubber roller fillers
| Al2O3 | Fe2O3 | SiO2 | FeO | MgO | CaO | TiO2 | Na2O | K2O | LOI |
| 99.2-99.6 | 0.03-0.10 | ≤0.02 | / | ≤0.01 | ≤0.01 | / | 0.20-0.30 | ≤0.02 | < 0.09 |
Recommended Applications
This grade is particularly recommended as a filler for:
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Printing rollers (offset, flexographic, and gravure)
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Laminating and film-casting rollers
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Papermaking press and guide rollers
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Industrial conveying and drive rollers
