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Producer of materials for the metals industry , including alloys and powders , aluminum , metal catalysts and optical surface technologies . Following the agreement to sell to the US Hexion Specialty Chemicals Group its Latex business activities including dispersions and powders , as well as its organic foam control agents , Rhodia announced the sale has been completed . Producer of materials for the world 's metals industry , including alloys and powders , aluminum , metal catalysts and optical surface technologies . It is found in a variety of forms including crystals / powder , tablets , and liquid . PCP comes in a variety of forms including crystals / powder , tablets , and liquid .