The Pro Clean Pipe Gel is specifically designed to remove rust and corrosion from untreated steel race pipes.Immediately dissolving rust and corrosionBrush applicationApply and leave for a few minutes and simply wipe awayWhen using Pro Clean Pipe Gel, the pipe must be removed from the machine prior to the application as it will cause damage if in contact with aluminium surfaces.Pipe Gel is brush applied and goes to work immediately dissolving rust and corrosion, agitate gently if required, leave for a few minutes then simply wipe away with industrial paper towel or wash off with clean water.