This is a TRE6121 Self-Etch Prime Cata/Gal. 2K Self-Etching Primer recommended application directly to new, stripped or sandblasted metal. Adheres direct to metal. Exxcellent choice when stripping an entire vehicle. Two-component primer has excellent adhesion properties & slows down the corrosion process. Olive green color. 1:1 mix ratio (1 part primer to 1 part activator) Thin with urethane reducer if needed. Made in the USA.