Rust Preventer - Sem Products

The SEM Products 39574 Rust Preventer is a professional-grade solution engineered to restore and maintain critical corrosion protection on inner body panels. This non-hardening, semi-transparent black material is formulated to precisely replace OEM corrosion protection, making it an indispensable product for collision repair centers and restoration shops committed to delivering durable, long-lasting repairs. Its specialized composition ensures robust defense against environmental corrosives, securing the long-term integrity of repaired vehicles.

Key Features

• Non-hardening formulation provides lasting flexibility and consistent protection over time.
• Designed to accurately match and replace original equipment manufacturer (OEM) corrosion protection standards.
• Semi-transparent black finish offers a discreet and professional appearance once applied.
• Optimized for efficient and precise application using the SEM 71110 Premium Undercoat Gun with the 71111 Spray Wand.
• Facilitates rapid restoration of essential corrosion resistance for both new and repaired automotive components.

Applications

• Inner Body Panels: Ideal for re-establishing corrosion protection within enclosed areas such as door skins, rocker panels, frame rails, and quarter panel interiors, especially after welding, collision repair, or restoration work where OEM coatings may have been compromised.
• New Part Installation: Essential for pre-treating new replacement panels, structural components, or aftermarket body parts to ensure immediate and long-term rust prevention before vehicle assembly and finishing.