The scuff depth is measured to determine the severity of the scuff and the expected outcome result. The scuff area is measured in square feet or inches to determine the material use and the time of the job. Scuffs are categorized in the following levels of severity:
|The scuff is 1/000” deep or less. The scuff will appear light white in color. The area of the scuff is consistent in depth. It can be restored with no distortion and minimal abrasive steps.
The scuff is over 1/1000". The scuff appears distinctly white in color. The depths may vary throughout the scuff. It can be removed with multiple steps with minimal to no distortion in the glass.
The scuff is up to 3/1000" deep. The scuffs are white in color and can be scalloped on the edges with glass missing along the scuff edge. It requires multiple abrasive and polish steps to remove the scuff and restore to clarity. Slight distortion may occur in certain areas from the repair.
The scratch is deeper than 3/1000" and visible distortion will occur by removing the glass to the bottom of the scratch.
EVALUATE DEPTH & LENGTH
The scuff depth is measured to determine the abrasive steps that are needed and to gauge the blending area to avoid distortion. The scuff area is measured in square feet or square inches to determine the time spent using each abrasive step and estimate the total time of the job. The scuff depth can be measured using a Digital Micrometer and the thickness of the glass measured throughout the process using an Ultrasonic Instrument.
MASK & PROTECT
The work area is completely covered with painter’s mask, plastic on the bottom and absorbent on the top, and taped into place. Carpets, walls and fixtures will be protected in buildings. Vehicles are masked to protect the paint from any overspray.
The initial scuff is removed using the most robust abrasives that remove the surrounding glass in increments of less than 1/10,000th of an inch per application. When the scuff is completely removed, the glass will be opaque and/or white from the aggressive abrasion.
Clarity is restored by applying lesser abrasives in diminishing stages to create a smoother surface to the glass. As each application of lesser abrasive is applied, additional clarity is achieved. This process can be from three to twelve steps of various abrasives.
Using foam pads the final polish is made with a mixture of rare earths and oxides to remove the residual haze from the abrasives and restore the like-new clarity of the glass.
All masking materials, tape and debris is collected in waterproof containers and removed from the site. All polish residue is wiped clean. There is no trace of work being done in the area.