PPG has introduced the PPG Primeron Optimal zinc epoxy powder primer. The patent-pending product is formulated with an optimized amount of zinc, providing better transfer efficiency than standard zinc-rich primers and corrosion protection that meets rigorous ISO C5 corrosivity specifications for use in high humidity and aggressive environments.

PPG Primeron Optimal primer has a much lower specific gravity than standard zinc-rich primers (2.0 vs. 3.6), making it less dense and easier to apply. With a transfer efficiency of 85%, about half as much product is needed compared to a standard zinc-rich primer, saving costs and enhancing sustainability. Additionally, PPG Primeron Optimal primer is made without solvents that release volatile organic compounds (VOCs).

"Corrosion protection is a decisive factor in the durability of a part and one of the most significant challenges for the coating industry,” said Paul Bradley, PPG manager, product development, Industrial Coatings.

“PPG Primeron Optimal primer offers improved adhesion and corrosion resistance, even in coastal environments, and has a better overall balance of properties than traditional zinc-rich primers.”

Additional benefits include exceptional edge, face and scribe corrosion resistance, and excellent adhesion on both smooth and blasted steel for a strong bond that resists peeling, chipping and degradation.

“PPG Primeron Optimal primer is a significant leap forward in corrosion protection and illustrates PPG’s commitment to sustainably advantaged solutions and powder coating innovations,” said Shelley Verdun, PPG business manager, powder coatings, Industrial Coatings.