Swarfbuster is a coolant that treats production water and tooling in glass fabrication. Swarfbuster is not a lubricant. Instead, Swarfbuster is a water-soluble treatment to control odor and spotting problems associated with glass etching and fabrication. The proper use of Swarfbuster can prevent buildup in piping systems, maintain flow rate and improve tool life/performance, helping to reduce your costs.