UPO Isopon Hardener Sachet for P38 and P40 Body Fillers 40g

The U-Pol Hardener for P.38/P.40 is an essential additive for polyester body fillers, enabling reliable curing and a smooth repair finish. Supplied as a 40g sachet, this hardener is designed to work with U-POL and ISOPON polyester fillers, ensuring quick set times and strong bond development when mixed with fillers. Ideal for automotive bodywork, it helps achieve sandable, durable repairs on dents, scratches, and reshaped panels. For best results, mix the hardener with the filler to the recommended ratio and apply within the pot life. Lightweight and easy to store, the sachet format keeps the product fresh and ready for fast repairs on the shop floor or in the home garage.