Rust-oleum 330494 Universal Bonding Primer 1 Qt

Product Description

The RUST-OLEUM 330494 is a universal bonding primer formulated to promote adhesion of topcoats on difficult-to-coat surfaces, including galvanized steel and two-part epoxy systems. It creates a smooth, rust-resistant base layer that allows finish coats to bond firmly across a wide range of substrates. Suitable for both indoor and outdoor applications, this primer is designed for use by painting contractors, maintenance technicians, and industrial coaters who need reliable adhesion on problem surfaces before applying a durable topcoat.

This primer is well suited for maintenance and repair painting on metal structures, HVAC equipment housings, industrial enclosures, and other surfaces where standard primers fail to achieve adequate adhesion. Its corrosion-resistant formulation makes it a practical choice for exterior metal surfaces exposed to moisture and weathering. The product ships in a unit-of-measure package of two quarts per package, with a total package weight of 7.4 pounds.

Key Features

• Bonds topcoats to difficult surfaces including galvanized steel and two-part epoxies
• Creates a smooth, rust-resistant base for topcoat application
• Suitable for indoor and outdoor use
• Corrosion-resistant formulation for metal and challenging substrates
• Durable adhesion promotes long-term finish performance

Compatibility

Designed as an OEM-style bonding primer for use as a preparatory coat on galvanized steel, two-part epoxy surfaces, and other difficult-to-coat substrates prior to topcoat application.

Installation Notes

Application should be performed by qualified painting or maintenance professionals following surface preparation best practices. Clean and degrease all surfaces before applying; loose rust, scale, and contaminants must be removed. Allow full dry time before applying topcoat per the manufacturer label instructions. Work in adequately ventilated areas and follow applicable safety data sheet guidance for handling solvent-based or specialty coating products.

Technical Specifications

• Container Size: 1 quart
• Package Quantity: 2 per package
• Package Weight: 7.4 pounds
• Application Environment: Indoor and outdoor
• Finish Type: Rust-resistant bonding primer

Standard Information

• Brand: RUST-OLEUM
• Manufacturer Part Number: 330494