Products / Lapping Additives / Water / Challenge 540HT
Slurry Additive for Suspending Non-Treated Abrasives (Single Pass)
Challenge 540HT Details
Product is available in 5-gallon pails and 55-gallon drums.
Ceramic, Fused Silica, Glass, Poly Carbonate lens
|Challenge 543-HT||Challenge 540HT||Challenge 550-HT||Challenge 555-HT|
CHALLENGE 540-HT should be mixed with deionized water and abrasive using the following slurry formula: 77-80% water,16-18% abrasive, 4-6% CHALLENGE 540-HT. Use an agitator with a marine type propeller and a motor capable of 1750 RPM. Use a low shear dispense pump for feeding the mixed slurry onto the lap.
Disperse the abrasive with DI water at 1000 rpm for 3 minutes. Add 540-HT. Mix for approximately 30 minutes depending upon abrasive surface chemistry. A small vortex should form at the surface of the slurry. Turn the mixer off, or to a maximum of 50 rpm.
Product should be stored in a temperature controlled environment. Prolonged exposure to temperatures at or below 32° Fahrenheit (0°C) is discouraged. Prolonged exposure to temperatures at or above 100° Fahrenheit (38°C) is also discouraged. In addition, material should always be sealed when not in use to prevent evaporation.
Dispose of in accordance with all applicable local regulations.