Ph 7080 Rare Earth Polishing Powders Optimize Precision Optics Manufacturing

A cerium-oxide-based rare earth polishing powder with a pH range of 7.0 to 8.0 is specified for precision optics and consumer-electronics cover glass. Product documentation describes a formulation that combines chemical decomposition and mechanical abrasion to improve surface finish and process efficiency. Its particle-size distribution and suspension behavior are presented as key controls for consistency in high-precision polishing.

Core technical advantages

Product specifications identify cerium oxide as the core material. The powder is described as offering faster polishing and higher processing efficiency than conventional materials, with lower material consumption per unit.

• Processing speed: The formulation is intended to shorten polishing cycles and reduce material use compared with traditional polishing materials.
• Surface quality: Particle size is controlled at D50 1.0 to 1.4 µm, a range intended to promote uniform abrasion and improve lens transparency and flatness.
• Impurity control: Multiple screening steps are used to remove impurities, reducing the risk of scratches during polishing.
• Suspension stability: A dedicated suspension agent is added to keep particles dispersed in the polishing slurry, supporting consistency and easier post-polish cleaning.

The combination of controlled particle size and dispersion is intended to support repeatable results across production runs while limiting maintenance demands associated with slurry handling.

Technical parameters

Specifications list total rare earth oxide content above 99 percent and a CeO2/TREO ratio of 99.9 percent. The pH range is 7.0 to 8.0, the appearance is white, and the recommended specific gravity is 1.03 to 1.08.

Applications and equipment compatibility

Applications include spherical lenses with grinding ratings of 80 to 120, prisms, motherboard substrates, and flat optical glass. The powder is also used for cover glass in smartphones and tablets.

• Optical components: Spherical lenses, prisms, and flat optical glass requiring controlled surface roughness and wear resistance.
• Consumer devices: Cover glass for smartphones, tablets, and other smart terminals.
• Equipment: Flat polishing machines and spherical oscillating polishing machines, with process parameters adjusted to different production requirements.

Equipment compatibility is described as covering both flat and spherical polishing systems, allowing the powder to be used across different optical manufacturing setups.

Packaging and logistics

Standard packaging is 25 kg polyethylene drums and 500 kg pallets. Custom packaging can be specified to match storage and logistics systems.

Frequently Asked Questions