Rust-oleum 769402 Damp-proof Primer 1 Gal Red

Product Description

The RUST-OLEUM 769402 is a red damp-proof primer formulated for direct-to-metal application on steel surfaces. Based on a modified alkyd composition, it bonds directly to rusted or marginally prepared steel without requiring a clean, bare-metal surface first, which reduces prep time on maintenance and repair jobs. Coverage ranges from 230 to 435 square feet per gallon depending on surface condition and application method. VOC content is less than 450 grams per liter. The primer reaches a tack-free state in 60 minutes, is fully dry in 7 hours, and accepts a topcoat after 24 hours. It is applied by trade painters, maintenance crews, and contractors working on structural steel, equipment, and industrial or commercial metal substrates.

This primer is suited for maintenance painting on steel in industrial, commercial, and light structural settings where surface rust is present and full abrasive blasting is not practical. Typical applications include structural steel, fabricated equipment, storage tanks, railings, and similar ferrous metal components. It is designed to minimize prep time by allowing application directly over rust, making it practical for field repairs and scheduled maintenance cycles where downtime is limited.

Key Features

• Direct-to-metal formula bonds over rust without full blast cleaning, reducing surface prep time
• Modified alkyd composition provides adhesion to steel substrates
• Tack-free in 60 minutes, supporting efficient workflow on multi-coat jobs
• Full dry time of 7 hours with a 24-hour recoat window
• Coverage of 230 to 435 square feet per gallon depending on surface profile
• VOC content less than 450 grams per liter

Compatibility

Designed for use on steel surfaces as an OEM-style damp-proof primer; compatible applicable material is steel as specified by the manufacturer.

Installation Notes

Application should be performed by qualified painters or maintenance technicians familiar with surface coating procedures. Remove loose scale, heavy rust, and contaminants per the manufacturer surface prep guidelines before applying; full removal of tight rust is not required but will improve performance. Ensure adequate ventilation when applying in enclosed spaces, and follow local VOC regulations and applicable safety codes. Do not apply over non-ferrous metals or surfaces outside the manufacturer specified applicable material without confirming suitability.