Clausen CLZRD-2 Rust Defender Hi-Build Polyester Primer – 1 Gallon with 40cc Hardener, High-Build Filler/Sealer for Metal, Fiberglass & Bodywork

The Clausen CLZRD-2 Rust Defender Hi-Build Polyester Primer is a premium, high-build primer system designed for professional automotive refinishers and restoration experts. This advanced primer primes, fills, and seals in one step, creating a smooth, stable surface ready for virtually any type of automotive paint system. Formulated for use on bare metal, body filler, aluminum, wood, and fiberglass, Rust Defender provides a reliable barrier that prevents solvent penetration and moisture intrusion. Its polyester composition offers exceptional resistance to heat, water, solvents, and salt, making it ideal for long-term durability and corrosion control. The primer sands easily—wet or dry—without shrinking, clogging, or feather-edge issues, making it well-suited for high-end restoration work. Rust Defender forms an effective layer between cured body filler and topcoats, safeguarding modern basecoat/clearcoat finishes from filler absorption and substrate irregularities. This 1-gallon kit includes the required 40cc prime hardener, providing a ready-to-use, professional-grade solution for smoothing panels, repairing surfaces, and preparing vehicles for high-quality finishes.

• High-Build Polyester Primer: Primes, fills, and seals in a single step for efficient refinishing.
• Includes 40cc Hardener: Complete kit with required catalyst for proper curing.
• Multi-Surface Compatibility: Excellent on bare metal, body filler, wood, fiberglass, and aluminum.
• Exceptional Barrier Layer: Protects topcoats from filler absorption and substrate imperfections.
• Moisture & Solvent Resistant: Strong defense against water, salt, heat, and solvent exposure.
• Non-Shrinking Formula: Maintains surface stability without swelling or shrinking over time.
• Easy Sanding: Smooth sanding performance, both wet and dry, for fast surface leveling.
• Ideal for Automotive Restoration: Highly regarded among classic car restorers and body shop professionals.
• Compatible with All Paint Systems: Works under basecoat/clearcoat, single-stage, and custom paint applications.
• Professional Quality: Designed for high-end refinishing, collision repair, restoration, and custom fabrication.