Step 1
Mix 1 cup of paint thinner to 1 gallon of exterior paint to help thin the paint out. The exact ratio is not critical, however. Mix the paint and thinner with a paint stick.
Step 2
Apply a thin layer of paint to the surface of the wood with a paint sponge. Overlap each stoke by 50 percent to achieve a consistent layer of paint. Wait 10 to 15 minutes before moving on.
Step 3
Wipe the paint off the surface of the wood with a clean rag. Follow the grain of the wood while wiping the paint off. This removes the excess paint and leaves the paint in the wood grain.
Step 4
Inspect the wood after 24 hours' drying time. If you feel you want the color darker, repeat the process a second time.