Description

SP-66C is filled, soft polyurethane pad for double-sided sapphire polishing applications.

Application

Flat substrate

Benefits

• High removal rate on A-plane sapphire
  
• Superior surface roughness, NO scratching
  
• Excellent flatness & roll-off characteristics
  
• Effective with most alumina & colloidal silica slurries

Physical Characteristics

• Filler: Proprietary
• Density [g/cm³ (lb/ft³)]: 0.45 (28.2)
• Hardness (Shore D): 36
• Compressibility (%): 10.0
• Elastic Rebound (%): 75