Rust-oleum 9171402 Epoxy Mastic Coating 1 Gal Gloss Brown

Product Description

The RUST-OLEUM 9171402 is a gloss brown epoxy mastic coating formulated for direct-to-metal application on steel and concrete surfaces. Designed as a rust preventative mastic, it bonds directly to metal without requiring a separate primer, reducing prep time on industrial and commercial maintenance jobs. Coverage runs 100 to 225 square feet per gallon depending on surface porosity and application method. An activator is required but not included in this package. VOC content is 340 grams per liter. This coating is suited for licensed painting contractors, maintenance mechanics, and facility maintenance professionals working on structural steel, equipment housings, and concrete floors.

The 9171402 is formulated for both indoor and outdoor use across a wide range of maintenance and protective coating applications. It performs on steel substrates and concrete in industrial plants, warehouses, and commercial facilities where corrosion protection is a priority. Application temperature must stay between 50 degrees F and 120 degrees F. The gloss brown finish provides a durable, finished appearance alongside its protective function. Compatible activators from RUST-OLEUM are required to catalyze the epoxy system before application.

Key Features

• Direct-to-metal application on steel and concrete — no separate primer required
• Rust preventative epoxy mastic formulation for long-term corrosion resistance
• Gloss finish in brown; suitable for indoor and outdoor environments
• Coverage of 100 to 225 square feet per gallon depending on substrate
• Tack-free in 20 minutes; fully dry in 26 hours; recoat window opens at 72 hours
• Two-component system — activator required, sold separately (compatible with RUST-OLEUM 07836737, 00243543, 00243568, 00243527)

Compatibility

Designed for use on steel and concrete substrates. Required activators are RUST-OLEUM part numbers 07836737, 00243543, 00243568, and 00243527. Do not apply without the appropriate activator — this is a two-component epoxy system.

Installation Notes

Surface preparation is critical for epoxy mastic systems — remove loose rust, mill scale, oil, and contaminants before application. Mix with the correct RUST-OLEUM activator per the manufacturer mix ratio before applying; do not apply unmixed material. Apply only when ambient and surface temperatures are between 50 degrees F and 120 degrees F to ensure proper cure. Allow a full 72 hours before recoating to prevent intercoat adhesion failure.