High whiteness aluminium hydroxide is precipitated from organics-free, high-purity sodium aluminate solution. Taking advantage of its optical characteristics (with refractive index of 1.57), aluminium hydroxide is used as an artificial marble filler made from unsaturated polyester resin or acrylic resin. ICA also provides specially processed products in addition to various products ranging from standard-sized to fine particles, depending on the purpose of use. HS series is the grade with a quality design exclusive for artificial marble, and has round shaped particles with less fine powder. Because of that, the specific surface area is smaller and the ambient-temperature curing rate is higher than conventional series.
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