Casting aids comprising a resin-impermeable substrate and a lubricating material, wherein the lubricating material is coated on at least one surface of said substrate. The casting aid may be used to deliver lubricant as needed to gloves or other surface contacting a tacky resin material during molding or forming of the tacky material. In particular, the lubricant-impregnated porous substrate may be used to lubricate gloves during molding and forming of orthopedic casting materials. The casting may be packaged as a kit with an orthopedic casting material.
