October 25, 2023 1 min read



  1. Surface Selection: Suitable for uncoated metal, wood, and fiberglass.
  2. Surface Preparation: Degloss and remove topcoat for better adhesion. Use 16 or 24 grit sandpaper. Clean the area thoroughly using a clean rag dampened with acetone to ensure no contaminants remain.


  1. Catalyst Requirement: This putty needs MEKP (methyl ethyl ketone peroxide) for curing.
  2. Catalyst Ratio: Add MEKP at a rate of 2% by volume at 77°F. This translates to:
    • 14-16 drops per ounce.
    • 10 cc per pint of putty.
  3. Temperature Adjustments: Adjust the catalyst amount to match the ambient temperature:
    • Cooler conditions: Slightly increase the catalyst.
    • Warmer conditions: Slightly decrease the catalyst.
    Ensure the catalyst doesn't drop below 1% or exceed 3% by volume.
  4. Mixing Caution: Once catalyzed, do NOT return the mixed putty to its original container. Stir the mixture thoroughly until even.


  1. Applying Putty: Use a plastic spreader or putty knife to spread the putty evenly. For filleting, shape a wooden paint stir stick to achieve the desired contour.
  2. Curing and Finishing: Allow the material to cure. Once set, sand and featheredge to your desired contour and finish.


  • Always work in a well-ventilated area.
  • Wear safety gloves and goggles when handling and mixing.
  • Store away from children and pets.