Tinting epoxy for inside compartments: mixing ratios

Those SW paints are really good stuff. Thanks for the link on the uv urethane. It would be good to try them against each other. Had super help from my local store. I rolled the stuff and it looks like someone sprayed my boat inside the cabin.

fyi...I also bought a two part paint from them for areas like the cabin bottom of the catamaran build...the local guys have been really nice on price.

 

If you want a durable finish that's UV resistant (although inside a locker I don't see the need) that's easy to clean I'd recommend only one product. A two part linear polyurethane paint. Interlux Perfection is what I use. Awlgrip should be just as good and there are others. Follow the directions, use the recommended epoxy prime coat and you'll do it once and be done with it. I'll attach a photo that shows the compartments I built 9 years ago up on the flybridge they are exposed to the weather. Used Perfection on the inside. While generally bone dry I've noticed that the port side has developed a small leak in the access door gasket over the past year. We seem to get these driving rain events recently and a few ounces of water finds it's way into the compartment occasionally. I've mopped things up a few times this summer but notice absolutely no issues with water getting to the wood that the compartment is built from. Like you I used the three coat epoxy waterproofing method then added a layer of 4 oz. cloth, filled the weave, primed and painted with Perfection.

Like I said, once and done.

 

Once and done is good. I'm planning to use Interlux performance VC as a bottom paint. Looks like I'll need to get the 2 gallon kit. That means I'll have a lot left over. I'd be inclined to use it up on the interior places. Problem is that things are getting closed in, and it'll be hard to access certain areas once the planking is done. I was sort of thinking to get some painting done now before the last planks go on. Maybe I'll just accept the difficult access and leave all painting till the end. That would solve some problems for me. I have long arms...

 

DO NOT use bottom paint on any interior surface. Bottom paint is designed to leach toxins in order to slow marine growth. You don't want those toxins leaching into interior spaces.

Almost any other paint will suffice for your application without priming. Oil based will have greater scuff resistance than water borne. Two part even more so. Oil will take the longest and water the quickest to dry. All paints can be recoated within a week without need of adhesion sanding. Low ventilation slows drying.

 

I thought the same thing Blueknarr. VC isn't an anti-fouling bottom paint. It's designed for boats that don't stay in the water like runabouts. So the OP should be OK if he wants to use it. I never have and don't know about priming bare epoxy for VC but he'll figure it out.

 

The only reason to use epoxy or a primer is if the surface needs to be made smoother than fairing compounds. Or in the case of something without glass, the epoxy can create a bit of a hard(er) shell than a high density foam, for example. Or if the boat is not epoxy. The business of many layers of barrier coats on an all epoxy boat is silly.