Quality verification
Surface Roughness Measurement
Measure Ra, Rz or coating profile after blasting to confirm that the selected cabinet, media and pressure create the required surface.
Why roughness measurement matters
A blasted surface may look clean but still be unsuitable for the next process. Coating, bonding, plating and cosmetic finishing can all fail if the surface profile is too shallow, too deep, too inconsistent or contaminated with broken media and dust.
Ra is an average roughness value and Rz represents a peak-to-valley style roughness parameter. Coating preparation may also use anchor profile measurements, replica tape or profile gauges. The measurement method should match the customer specification and the surface function.
When selecting a blasting cabinet system, sample blasting and roughness measurement can prove whether the chosen media and pressure produce the required result before the equipment is purchased. The full article detail page explains how cabinet type, pressure and media affect the final surface.
| Measurement | Best use | Buying implication |
|---|---|---|
| Ra | General roughness comparison | Useful for cosmetic and precision process control |
| Rz | Peak-to-valley roughness | Shows stronger profile differences after media or pressure changes |
| Anchor profile | Coating adhesion preparation | Helps select angular media and pressure range |
| Visual reference | Decorative finish | Supports wet blasting or glass bead process approval |
Need a measured finish?
Tell us the required Ra, Rz, anchor profile or visual sample. We will align cabinet type, media and test method.