Transtar 4633 2-in-1 Primer White is a professional-grade aerosol primer designed for fast, convenient priming of both metal and plastic substrates in collision repair applications. The white color provides excellent hiding power under light-colored topcoats including whites, silvers, yellows, and pastels — reducing the number of color coats needed for full coverage and accurate color match. This dual-purpose formula handles both metal and plastic substrates in a single product, streamlining body shop workflow on mixed-material repairs. Fast drying with excellent fill, build, rust prevention, and easy sanding properties.
Key Features:
- 2-in-1 Metal and Plastic Primer: Single product primes both metal and plastic substrates for streamlined collision repair.
- White Color: Excellent hiding under light topcoats — ideal for white, silver, yellow, and pastel finishes.
- Rust Prevention: Seals out moisture and prevents corrosion on bare metal and repaired steel panels.
- Fast Drying: Rapid dry time keeps repair workflow moving and minimizes booth occupancy.
- Superior Fill and Build: Covers minor imperfections and sand scratches for a smooth topcoat foundation.
- Easy Sanding: Sands smoothly for efficient final surface preparation.
- Compatible with All Automotive Paints: Works under virtually all solvent and waterborne topcoat systems.








