
Welding Slag Damage, also known as welding drips, is a particularly challenging and labor-intensive form of glass impairment caused when molten material from welding activities inadvertently lands on glass surfaces. Due to its complexity, restoration is typically recommended only when replacing the glass is prohibitively expensive or difficult.
A critical consideration in restoring welding slag damage is the safety implications, especially concerning the glass’s location and severity of damage. If the glass is part of a building’s safety system, particularly if it is tempered, restoration efforts may compromise its structural integrity. Welding slag can penetrate the tempering envelope of tempered glass and almost invariably shatter annealed glass, affecting its ability to function safely as intended.
Furthermore, welding slag damage often involves encapsulated metal within the glass. Before any restoration attempts, it is essential to remove as much of this metal as possible. The metal can act as a heat sink during the restoration process, drawing excess heat into the glass and causing rapid thermal expansion. This introduces additional challenges and risks, making meticulous planning and execution of the restoration process crucial to effectively restore the glass while maintaining its structural safety.
Welding Slag Damage can be removed using GlassRenu’s Grey RenuDisk, Red RenuDisk, Polishing Compound, and Polishing Felts.
Buy Welding Slag Removal Tools
Tool Checklist |
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Corded, Variable Speed, Rotary Polisher (600-3000 RPM MINIMUM, ⅝-11 threaded spindle) |
Backing Pad |
Grey RenuDisk(s) |
Red RenuDisk(s) |
Polishing Felt |
Polishing Compound |
Rasp |
IR Thermometer |
PPE |