SP-66C
POLISHING PAD – PROPRIETARY ABRASIVE FILLED
SP-66C is filled, soft polyurethane pad for double-sided sapphire polishing applications.
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
TYPICAL APPLICATIONS
Flat substrate
SP-66C PAD PROPERTIES (Average)
FILLER: Proprietary
DENSITY [g/cm³ (lb/ft³)]: 0.45 (28.2)
HARDNESS (Shore D): 36
COMPRESSIBILITY (%): 10.0
ELASTIC REBOUND (%): 75
Values are subject to change without notification.
![](https://jhrhodes.com/wp-content/uploads/2017/06/SP-66C-pic2-1-207x300.jpg)
![](https://jhrhodes.com/wp-content/uploads/2017/06/SP-66C-pic1-1-300x223.jpg)