I have a few Quick-Grip® clamps that slip, even though I have cleaned the bar and lubricated it with WD-40. Is there a remedy?
John Swanson: Try cleaning them with denatured alcohol and not lubricating them with WD-40.
Stephen Rosasco: I would wipe them down with paint thinner, then alcohol, sand them with rough paper 6- grit, and do not use WD-40, as it is a lubricant.
Kevin Hancock: Rinse off the WD-40 with naphtha.