Rust-oleum 321696 Dtm Urethane Mastic Coating 1 Gallon Black

Product Description

The RUST-OLEUM 321696 is a high-performance, two-component direct-to-metal (DTM) urethane mastic coating designed for industrial corrosion protection. Part of the 9800 System, this flat black coating is self-priming and formulated to deliver a high-build, high-solids finish that resists sagging and retains color under aggressive environmental conditions. It applies in a single coat directly to metal surfaces without a separate primer step, though pairing with the HS9300 System Epoxy Primer is recommended for best results. Licensed coating applicators and industrial painters install this product in moderate to severe industrial environments where long-term rust resistance is a primary requirement.

This coating is intended for use on tanks, towers, structural steel, and metal equipment operating in moderate to severe industrial settings. The two-component system requires ordering the base and activator separately. It meets USDA requirements for incidental food contact and is accepted for use in federally registered Canadian food facilities, making it suitable for food processing and agricultural facilities where incidental contact compliance is required.

Key Features

• Direct-to-metal (DTM) formula — no separate primer required for standard applications
• High-solids, high-build, sag-resistant finish for durable coverage in one coat
• Two-year rust-proof guarantee with maximum corrosion resistance
• Meets USDA requirements for incidental food contact
• Accepted for use in federally registered Canadian food processing facilities
• Flat black finish suitable for industrial equipment and structural metal surfaces

Compatibility

Designed for use on tanks, towers, and metal equipment in moderate to severe industrial environments. For best adhesion and corrosion protection, prime first with the HS9300 System Epoxy Primer in red or gray. Base and activator components must be ordered separately.

Installation Notes

Application should be performed by qualified coating contractors or industrial painters familiar with two-component urethane systems. Follow proper surface preparation procedures — remove loose rust, mill scale, and contamination before application. Ensure adequate ventilation and use appropriate respiratory protection per coating manufacturer safety data guidelines. Do not apply to surfaces exposed to temperatures outside the product-rated range without consulting the full product data sheet.

Technical Specifications

• Finish: Flat
• Color: Black
• Size: 1 gallon
• Coating Type: DTM Urethane Mastic
• System: Two-component (base and activator sold separately)
• Weight: 10.3 pounds
• UPC: 020066369903

Standard Information

• Brand: RUST-OLEUM
• Manufacturer Part Number: 321696