| 摘要 |
<p>PURPOSE:To provide a polishing composition excellent as a polishing material for polishing plastic products and metal materials. CONSTITUTION:A polishing composition comprises water, an aluminum oxide polishing agent and a polishing-accelerating agent. The polishing agent is produced by mixing two or more of aluminum nitrate, a glycol and an alumina sol, and preferably comprises 5100g/l of the aluminum nitrate, 50-400g/l of the glycol, and 5-50g/l of the alumina sol. Further, 1-10g/l of a silicone-based defoaming agent may be added.</p> |
