U-POL SYSTEM 20 FAST HARDENER S2030/25 FOR PAINT PRIMER LACQUER 2.5 LITREU-Pol Fast Hardener / Activator Paint & Primers 2.5L U-PolU-Pol Fast Hardener / Activator For Paint & Primers 2.5LIdeal for spot & panel repair.2K Hardener range for U-Pol primers, clears and solid coloursHigh quality isocyanate hardeners for use with 2K acrylic coatings. Use with SYSTEM 20 HS and SR clearcoats, UHS primers and HS solid colours.Ideal for spot and panel repairs