ZSP Zero Sole Pressure

ZSP, or Zero Sole Pressure / McKinley Shoe liners are used to bond racing plates with two-part acrylic glues. The liners are made of a soft rubber compound that can easily be inserted inside the shoe to hold the adhesives at the white line and prevent it from running into the sole area. They are VERY sticky so they are a great help with the initial placement of the shoes to be bonded and they also keep the shoe level during the curing time.