have a kemper system gutter that I need to modify and wish to then re-seal and re waterproof. The bonding substrate I need will ideally work with Galvanised steel, aluminium and the existing Kemper surface. What do you think might work best?
Assuming the substrates are clean, dry and prepared as detailed in the Technical Data Sheet we can recommend Rust-Oleum Mathys Fillcoat or Rust-Oleum Mathys Fillcoat Fibres if any areas with cracks upto 2mm.