Re: Thoughts on best "porch paint"
Thank you -- so 100% acrylic -- which I believe is water based latex -- is your preferred choice. For the reasons you noted, and simpler cleanup, I think I'll be hard pressed to ever use oil again.
Originally Posted by ordjen
On the pontoon, the ply was very open grained. It had weathered for a year. It was very rough, but mostly un-sandable because of the remaining glue from the carpet. It would gum-up my sander. I did hit it with 40 grit. I rolled-on about 3/4 gal of the Valspar urethane oil -- http://www.lowes.com/pd_48233-4-009....rch&facetInfo= -- thinned with mineral spirits for the first coat. Then I brushed on an un-thinned second coat. It's still a little rubbery, but it does not have a solid uniform appearance. It looks like another coat is needed, but I may just let this wear a season and next spring apply the acrylic latex. I was going to mix in some sand on the second coat, but the surface is so rough already, I let it be. In fact, I need to sand down / tear-out a few sliver potentials.
On my porch -- should I prime/paint all sides of the untreated t&g boards before installing? New boards will all be PT, so I plan to install - let it rest a few months - and then paint. I also heard it might be good to paint the tongues while installing. I may have a mixture of re-useable boards and new PT ones.