Cleaning Abrasive Damage Removal Tools

Cleaning Abrasive Damage
Damage Category: 2
Approx. Time/Sq. Ft.: 12 – 15 minutes

Damage caused by cleaning abrasives is a common issue in glass care, often resulting from the use of abrasive sponge materials or steel wool. While white abrasive sponges are generally safe for glass, green and blue variants frequently cause spider web-like scratches with swirls or omnidirectional marks. These scratches may not be detectable by a fingernail but become more visible under direct sunlight.

In professional window cleaning, grade 0000 steel wool is used to remove organic materials adhered to glass surfaces. Although this fine grade typically doesn’t scratch glass when dry, its interaction with water leads to rapid oxidation, forming iron oxide (FeO₂). Iron oxide is harder than glass and can cause scratches similar to those from scrub sponges.

Restoring glass damaged by cleaning abrasives involves two main steps: removing superficial scratches and eliminating any residual abrasive particles. This process requires precise techniques to diminish the appearance of scratches while maintaining the glass’s structural integrity, especially for microscopic abrasions that are visually apparent but not easily felt.

Cleaning Abrasive Damage is easily removed using GlassRenu’s Cutting Compound, Foam Finishing Disks, Polishing Compound, and Polishing Felts.


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Tool Checklist
Corded, Variable Speed, Rotary Polisher (600-3000 RPM MINIMUM, ⅝-11 threaded spindle)
Backing Pad
Grey RenuDisk(s)
Black RenuDisk(s)
Polishing Felt
Polishing Compound
Rasp
IR Thermometer
PPE

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