6 Tips for Applying a Second Coat of Deck Stain. Choose a Good Day for Staining. Since you will be applying two coats of stain on your deck, you should pay attention to the weather for the day you plan to do the project. Use the Same Stain. Use a Clean Brush. Wait a Few Hours. Work Quickly. Blot Excess Stain.
The general rule of thumb is to apply only as much deck stain as the wood can absorb. Typically this will be 2 coats, unless your dealing with extremely dense hardwoods which may only be able to absorb 1 coat of wood stain. Watch this video to see more tips on how many coats of stain to apply.
I re-stained my redwood deck about a month ago with TWP 1500 after. Yes you cannot apply now but you can apply a light coat after a light .
Before applying stain, make sure your deck has been cleaned properly. Sprinkle some water. If a second coat is required, wait 4 hours between applications.