Rust-oleum 301904 Elastomeric Roof Coating 7 Year White

Product Description

The RUST-OLEUM 301904 is a white, 7-year elastomeric roof coating designed to waterproof and weatherproof low-slope and flat roofing systems. It delivers a high initial solar reflectivity of 84 percent, reducing heat gain and improving energy efficiency in conditioned buildings. The coating resists mildew growth and becomes rain resistant within 6 hours of application. Formulated to meet or exceed ASTM D 6083 standards, it provides long-term durability and excellent resistance to weathering and dirt pickup. Roofing contractors and licensed applicators use this product as a maintenance or restoration coating on compatible roofing substrates.

This coating is suited for commercial and residential low-slope roofing applications. It adheres to metal roofing, weathered single-ply membranes, smooth-surface asphalt built-up roofing, and modified bitumen substrates. It is appropriate for re-roofing and maintenance scenarios where the existing substrate is structurally sound but requires waterproofing, reflectivity restoration, or weather protection. The high reflectivity value makes it a practical choice in climates where cooling loads are a concern.

Key Features

• 84 percent initial solar reflectivity for improved energy efficiency
• 7-year durability rating with excellent weathering resistance
• Meets or exceeds ASTM D 6083 elastomeric roof coating standard
• Rain resistant in 6 hours after application
• Mildew resistant formulation
• Waterproofs and weatherproofs metal, single-ply membrane, asphalt built-up, and modified bitumen surfaces

Compatibility

Designed for use on metal roofing, weathered single-ply membranes, smooth-surface asphalt built-up roofing, and modified bitumen roofing substrates. Substrate must be clean, dry, and structurally sound prior to application.

Installation Notes

Application should be performed by a qualified roofing contractor or licensed applicator familiar with elastomeric coatings and local building codes. The substrate must be thoroughly cleaned and free of loose material, oil, and standing water before coating is applied. Do not apply to wet surfaces or when rain is expected within 6 hours. Follow all safety data sheet guidance for ventilation and personal protective equipment during application.

Technical Specifications

• Solar Reflectivity: 84 percent initial
• Durability Rating: 7 years
• Color: White
• Container Size: 1 gallon
• Rain Resistance: 6 hours
• Standard Compliance: ASTM D 6083
• Package Weight: 24.5 pounds
• Package Quantity: 2 per case

Standard Information

• Brand: RUST-OLEUM
• Manufacturer Part Number: 301904