Two-part polyester finishing and blending putty. Includes ZNX-7 for adhesion to galvanized metal - aluminum - steel - SMC - and O.E.M paint. Extra-thin formula spreads smoothly. Easily fills grind marks - pinholes - uneven surfaces and other MetalWorks body fillers and glazing putties to enhance their ease of working. Sands easily. Pinhole-free. Helps prevent staining or bleed-through when used under basecoat/clearcoat paint systems. Blue cream hardener included.