CHALLENGE 300-CR
Synthetic Generating Coolant for Plastic & Glass Lenses
CHALLENGE 300-CR is a synthetic formulation developed to optimize removal rate and surface finish in generating or edging processes involving plastic (CR39, high-index, polycarbonate) and glass ophthalmic lenses.
This versatile usage produces significant cost savings. The product’s exceptional heat transfer characteristics also ensure prolonged diamond life. CHALLENGE 300-CR provides rapid settling and is compatible with all filtration systems. CHALLENGE 300-CR eliminates the problem of plastic swarf floating on the top of the coolant.
Typical Properties:
- pH – 9.6
- Conductivity Ms – 1.20
- Specific Gravity – 1.02
Directions:
CHALLENGE 300-CR is designed for use at economical dilution ratios and is equally effective in hard and soft water. For optimum results, follow the dilution ratios listed below, making production specific adjustments as needed:
| Application | Dilution Ratio |
|---|---|
| Coolant tanks with NO filtration | 25:1 |
| Large (>100g) coolant tanks with hydrocyclone filtration | 30:1 |
| Small coolant tanks (<100g) with hydrocyclone filtration | 35:1 |
Maintaining dilution ratios with a hand-held refractometer is recommended. A pH meter is also useful. Develop production-specific scales by obtaining accurately measured samples of a properly diluted mixture that corresponds to use. Maintain a higher concentration for recirculating, filtered coolant systems.
Additional Information:
CHALLENGE Products are available in 5-gallon pails and 55-gallon drums, F.O.B. Bethel, Connecticut, and also include: grinding fluids, sawing fluids, lapping/polishing slurry additives, rinse/wet storage additives and ultrasonic/megasonic detergents. Safety Data Sheets available upon request.
Benefits:
Versatile – for both plastic and glass lenses
Better surface finishes
Faster removal rates
Problem-free filtration with all systems
Extended diamond life
Operator acceptance
Low foaming