CRL Cerium Oxide Powder 10 lb – Glass Polishing Compound

• Used with the CRL9257 Scratch Polisher
• Premium cerium oxide polishing compound for glass—fast stock removal
• Average particle size 2.9 micron for a bright optical finish
• Exceptional suspension qualities for recirculating slurry systems
• Soft settling for easier equipment and glass cleanup
• Contains no zinc—meets most local disposal ordinances
• Suitable for hand or machine polishing, edging, beveling, and mirror repair

CRL Cerium Oxide is a high-grade optical polishing compound used to reduce and remove scratches from mirror bevels, table-top edges, vehicle and architectural glass. Mixed with water to form a paste or slurry, this cerium oxide compound offers consistent particle size and a high concentration of rare earth oxides to deliver a bright finish while resisting hardening.

This compound is compatible with hand pads for light surface cleanup, powered hand devices for scratch repair, mechanized scrubbers in mirror silvering lines, and as the final polishing step in multi-stage edging and beveling equipment. Its exceptional suspension quality and soft settling make it ideal for recirculating slurry systems and routine maintenance.

Performance depends on proper concentration and temperature. Cerium oxide polishes glass via mechanical and chemical action: agitation with felt pads or wheels creates the heat required to activate the chemical reaction. Maintain a damp paste during polishing to avoid drying and loss of effectiveness.

For recirculating slurry systems, measure concentration in Degrees Baume with a hydrometer. Mix heated water (at least 80ºF / 30ºC) with cerium oxide and adjust to the recommended Baume:

• Light surface cleaning / pre-silvering: ~1º Baume (1.6 oz per gallon / 11.8 g per liter)
• Beveling and edging: 3º–5º Baume (4–7.2 oz per gallon / 29.7–53.7 g per liter)

Maintain slurry temperature between 90ºF and 105ºF (32ºC–40ºC) for optimum performance.