Best Overall
Olympic WaterGuard Stain & Sealer
- Base
- Water-based
- Finish
- Semi-transparent
- Coverage
- Up to 400 sq. ft. per gal
- Dry Time
- About 24 hours
Pros
- States three years on decks, four on fences
- Up to 400 sq. ft. per gallon
- Soap-and-water cleanup
- UV and scuff-resistant coating
Cons
- About 24 hours before foot traffic
Three years on decking and four on fences and siding is what this can commits to in writing, and that stated horizon is what put it at the top of our list. It's a number you can put in a calendar before the first board is masked. Woodland cedar goes on as color rather than film, so the grain texture stays visible under it while the tone deepens to something warmer than bare wood.
Coverage is where it earns its keep on a real project. Up to 400 square feet per gallon is roughly double what the two-coat products here ask for, so a deck that would drink three gallons of Defy takes closer to one and a half of this. Water-based means soap and water cleanup and a brush that rinses at the tap, and the scuff guard resins are aimed squarely at the traffic lane between the door and the grill.
Two things we noticed on the first coat. Color builds quickly, so a heavy pass in one spot cures as a darker patch — keep a wet edge and work in board-length runs rather than stopping halfway. And a semi-transparent finish does nothing to hide a mismatched replacement board; on an old deck with a few new pickets, the new wood reads lighter whatever you put on it.
Bottom line: Our default for a deck or fence that needs color and protection in one coat: it spreads further than most here and states a protection window you can plan around.
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