U Pol Products Up0681 Replacement Hardener Blue Cream For U Pol And Isopon Polyester Fillers - 14 Gram Tube

Features and Benefits:

• Blue cream hardener formulated for polyester body fillers
• Compatible with U POL and ISOPON polyester filler products
• Promotes proper curing and strong, durable repairs
• Creates a smooth, easy-to-sand finish
• Ideal for automotive body repair and refinishing
• Reliable performance for professional and DIY applications
• Convenient replacement size for filler kits and shop use



The U Pol UP0681 Replacement Hardener is a blue cream catalyst formulated for use with U POL and ISOPON polyester body fillers. This benzoyl peroxide based hardener ensures proper curing, strong adhesion, and reliable performance when mixed with compatible polyester repair compounds. Designed for automotive body repair and refinishing applications, it promotes a smooth, durable, and sandable finish for dent repairs, surface filling, and restoration work. Ideal for collision shops and DIY users, this replacement hardener delivers consistent results with trusted U Pol filler systems.