UPOL Body Filler & Stopper Hardener Bag BPO

UPOL BPO Body Filler Hardener – Fast, Reliable Automotive Repair Catalyst The UPOL BPO Body Filler Hardener is a high-performance benzoyl peroxide (BPO) catalyst designed to deliver fast, consistent curing when mixed with automotive body fillers and repair putties. Engineered for professional collision repair and DIY auto restoration, this hardener ensures optimal adhesion, smooth sanding, and a durable finish every time. Formulated for easy mixing and uniform activation, UPOL BPO hardener helps reduce pinholes and imperfections, creating a strong foundation for primer and paint. Its quick-setting properties improve workflow efficiency, making it ideal for body shops, panel repairs, dent filling, and surface refinishing. Key Features: Premium BPO catalyst for automotive body fillers Fast and consistent curing performance Easy-to-mix formula for smooth application Improves sanding and finishing results Suitable for professional and DIY auto body repair