How do I paint metal gutters and downspouts?

Paint Metal Gutters and Downspouts

Project Scenario

You need to re-paint your metal gutters and downspouts. How should I proceed?


  • Remove dirt, loose paint, and other contaminants by pressure washing or wire brushing.
  • Clean with mildew retardant solution, if necessary.
  • Use a medium grit sanding block to create a slight profile.
  • Rinse thoroughly to remove any sanding residue and let dry.

Primer Coat

Select the proper primer by the type of gutters and downspouts that you have:

Ferrous Metal:708195x All Purpose Red Oxide Primer
Galvanized:501601 First Coat Exterior Primer
Plastic or Vinyl:XIM UMA

Top Coat

Best:522501 Ultimate Exterior Satin
Better:54200x Unique II / Color Base
Good:758801x Powerkote Silicone Alkyd Gloss

Caution! Things to consider

  • Check for and clean clogged downspouts.
  • Check for pin hole leaks. Repair or replace as necessary.
  • Check brackets and reinstall, if necessary.

For more information about this or other painting tips & techniques, our paint & coatings products, or general DIY paint and coatings questions, please contact us online or by calling 1-800-452-2315.

How can we help you today?