... 3.whiteness:93min 4.Used for plastic,rubber,chemical,papermaking etc. Limestone Powder and lump, additive in the feed Application: 200mesh ... : as the additive in the feed 250-300mesh: whitewash the wall,plastic,rubber,waterproof material 350-400mesh: ... ,pipe 400-600mesh:toothpaste and soap 800mesh:rubber,pvc,plastic,electric cable 1250mesh:pvc,PE,coating,papermaking Properties:1 ...