Useful Information – Surface Finishes

Nominal
Grit
Ra
measurement
Typical applications and techniques
 Micron
(micrometer)
Micro-inch
 802.5100Dull polish – applicable for tube, bends and tees in general food processing subject to daily cleaning in place (CIP). Normal abrasive techniques achieve this.
 1001.248
1201.040
1500.832Satin polish – used by high end food and beverage plants, cosmetics, toiletries and with standard pharmaceutical and biotechnology applications. Easier to CIP. Sequential use of abrasives is required.
1800.624
2400.520
3200.416Bright polish – Top end pharmaceutical (water for injection), high value biotechnology materials, semi-conductors, solvents and pure gases. Abrasives plus electropolishing normally required.
5000.28
 5000.14

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itcsUseful Information – Surface Finishes