I've always been skeptical of "miracle" products but I had a chance to use this one and I was almost speechless when I was done. Wood check gaps and splits up to about 3/16" were filled in (even on vertical surfaces!) as if they'd been caulked. When I was done the old deck looked almost new :cool:
I tried a roller but this ain't paint, it's more like heavy slick mud and the roller slid without depositing anything so in the end I brushed the whole deck instead. For the wider cracks I brushed cross-grain to fill them, then laid a dry smoothing stroke along the grain to finish. It dries fast in the heat and sun but I was able to keep up with it. It's heavy on the brush, about double what a normal brush full of paint weighs and gloppy but it spreads well though again that's about twice what painting takes. 5 gallons is supposed to cover 375 SqFt with 2 coats but I did about the same in one. Cutting in close is a royal pain because of the thickness of the mix but a slight amount of water mixed in helped considerably.
I did another deck with this stuff yesterday with it in cheap-rental-marginal condition, and once again the results looked amazing. It's a textured finish meant for floors but it works great on rails and pickets too. The texture looks like fine sand but isn't really abrasive to the touch. I don't know how durable it is yet- that remains to be seen- and of course it's not intended to fix any structural issues with the wood but if I were going to 'flip' a house with a weathered old deck I'd use this in preference to replacing the weathered but sound wood.
If anybody here has any tips on applying this stuff I'm all ears- that customer has a lot of old decks and he's as impressed with the results as I am so there will be more in my future. I'd like to roll it rather than brush it even if I have to lay it off with my brush after rolling. Even with all my brushing experience this stuff is a real chore to use but it performs miracles. I never thought I'd say that but it's true!
PS: Please read post #6 in this thread for my final assessment