The Cold Apply Evolution is here! MasterWax Cold apply waxes are applied without an iron for quick, convenient application without harmful fumes. Masterwax adds a bonding agent to their blocks so the product adheres to the ski after being applied with a wool applicator attached to a standard power drill. The Ultra8 PP4 line is MasterWax's premier ultra-high fluoro wax series for the best racing performance. These waxes are fantastic for training, ski testing, or as a base for pure fluoro racing toppers. Cold apply reduces the chance of burning your bases with an iron to zero percent - meaning your skis last longer before stone grinding.