Assess the railing: Check for any worn-down areas that need sanding and priming.

Prime if necessary: If the original paint is glossy, the paint job is sloppy, or you're transitioning from a dark to a light color, consider using a primer.

Choose the right paint: Recommended options include Sherwin Williams Urethane Trim Enamel, Benjamin Moore Advance, or Sherwin Williams Pro-Classic Interior Water-based Acrylic Alkyd.

Lightly sand: Use 220 fine sandpaper to scuff the surface for better paint adhesion.

Wipe down with deglosser: Use a deglosser like Krud Kutter to thoroughly clean the surface.

Tape out areas: Use painter's tape to mark off areas you don't want to be painted.

Use brush and roller: Apply the paint using a foam roller for a smooth finish and a brush for hard-to-reach areas.

Let dry and apply multiple coats: Allow the first coat to dry, then apply 2-3 coats of Sherwin Williams Emerald Urethane Trim Enamel for a lasting finish.

Remove the tape: Carefully remove the tape while the paint is still tacky for clean lines.

Touch up any areas: Use a small painter's brush to fix any imperfections between the colors.

Let paint cure: Allow the paint to cure for approximately 30 days for maximum durability.