Finish sand 4:1 is a hybrid polyester primer surfacer that utilizes patented technology to provide a smooth, low-texture finish. It is ideal for holding down troublesome repairs on a variety of substrates. Finish sand 4:1 passes 500 hr in salt spray test (ASTM B117) and can be applied over properly sanded and cleaned bare metal. It is compatible with waterborne paint systems and VOC compliant. Must be catalyzed with 733 4:1 polyester primer catalyst or 734 fast 4:1 polyester primer catalyst only.
https://houseof1000kolors.com/products/evercoat733
https://houseof1000kolors.com/products/evercoat734

EVERCOAT® Finish Sand 4:1 Polyester Primer Surfacer, 3.78 L Net Content, Liquid Form, Gray, Aromatic Odor/Scent, Composition: Styrene, Acetone, Titanium Dioxide, Talc (Hydrous Magnesium Silicate), Toluene, Mineral Spirits (Stoddard Solvent), Crystalline Silica (Quartz), Naphtha (Petroleum), Hydrotreated Heavy, Copper Naphthenate, 2 hr Dry Time, Density: 11.03, 144 g/L, 216 g/L VOC, Application Method: Spray Gun, Applicable Materials: Aluminum, Bare Metal, Body Filler or Putty, Fiberglass, Rigid Plastics and SMC