Direct-to-metal coating designed to perform similarly to primer-topcoat systems

PPG has introduced SPECTRACRON® SPM series DTM (direct-to-metal) monocoat, a one-component coating that helps prevent corrosion on heavy-duty, transportation, agricultural, and construction equipment.

The coating is engineered for direct application to pretreated metal substrates while providing corrosion resistance that is comparable to traditional two-component primer-topcoat systems, says the company. The high-solids, high-gloss formulation allows the coating to be applied over pretreatment chemistries such as iron phosphate, zinc phosphate, and zirconium at supplier-recommended weights.

According to the manufacturer, flash times and cure temperatures for the coating are similar to those commonly associated with current urethane topcoats, eliminating concerns about fast wet-on-wet application times and enabling the coating to work without constraints on existing paint lines.