Rust-oleum 248657 Rubberized Undercoating Black 15 Oz

Product Description

The RUST-OLEUM 248657 is a black rubberized undercoating sold in a 15 oz aerosol format, designed to protect bare and exposed metal surfaces from corrosion, moisture, and rust. Applied as a spray-on barrier coat, it forms a flexible, rubberized film that adheres to metal substrates and resists ongoing moisture intrusion. The formula is paintable once cured, making it compatible with topcoat applications where appearance matters. This product is used by automotive technicians, fleet maintenance crews, and experienced DIYers working on vehicles, trailers, and recreational equipment.

This undercoating is suited for automotive and light-to-medium commercial applications where underbody metal surfaces are exposed to road moisture, salt, and debris. Typical use cases include treating underbody panels, wheel wells, frame rails, and trailer floors on cars, trucks, and recreational vehicles. For full protection, the manufacturer recommends applying two coats. The aerosol delivery format allows direct spray access to contoured or hard-to-reach underbody areas without additional equipment.

Key Features

• Rubberized formula creates a flexible, impact-resistant barrier coat on metal surfaces
• Protects against rust, corrosion, and moisture intrusion
• Paintable surface after curing accepts topcoats without adhesion issues
• Aerosol format provides direct application to contoured underbody surfaces
• Two-coat application recommended for maximum protective coverage

Compatibility

Designed for use on metal surfaces of cars, trucks, trailers, and other recreational vehicles where underbody rust protection is required.

Installation Notes

Application is typically performed by automotive technicians or experienced maintenance personnel. Before applying, ensure the surface is clean, dry, and free of loose rust, grease, and debris. Work in a well-ventilated area and follow standard aerosol safety practices. Allow adequate dry time between coats as specified by the manufacturer before returning the vehicle to service.

Technical Specifications

• Net Fill: 15 oz
• Color: Black
• Finish Type: Rubberized
• Paintable: Yes
• Package Weight: 8.4 pounds
• Unit of Measure: EA
• Package Quantity: 6

Standard Information

• Brand: RUST-OLEUM
• Manufacturer Part Number: 248657