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| Akrochem SC-25 |
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| Kaolin hard clay |
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| 1332-58-7 |
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Aluminum silicates or clays are the single most used non-black fillers in elastomeric systems.
They function as semi-reinforcers or extenders in rubber compounds at an economical price.
These light cream powders are refined by an air separation process to remove impurities like quartz and mica and to produce a specific particle size.
Aluminum silicates or clays are commonly referred to as kaolin clays.
Clays are used as low cost non-black reinforcing, stiffening or extending fillers in rubber. Hard clays give abrasion resistance.
SC-25 is less reinforcing, has slightly better color and processing advantages (hot metal release, extrusion, etc.) over standard hard clays. All these clays are manufactured by an air-floated process and are economically priced. Also available from Akrochem are water-washed kaolin clays of high purity, fine particle size, high brightness, calcined, delaminated and treated variations. |
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Free Moisture 0.80
Ignition Loss, % 14.0
GE Brightness 79
Alumina, % 39.8
Silica, % 44.5
Particle Size, < 2 micron 68%
Mean Particle Sz., micron 1.2
Screen Residue, % (325 mesh) 0.35 |
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