Also recommended for the rinsing / washing of lapping plates, CHALLENGE 700HT removes process debris from both the plate’s surface and grooves, thereby preventing the formation of iron oxide / abrasive particle aggregates that can dislodge and cause scratching. When used for rinsing / washing polishing pads, CHALLENGE 700HT prevents staining; increases pad life by keeping the pore structure open; and reduces the frequency of pad conditioning.