I think I may have used the wrong paint, maybe.

I'm halfway through a complete replacement of my front porch railings, balusters, pillars etc., the whole nine yards. Starting out I thought a good quality exterior latex satin/semi gloss paint was the way to go, so I've been using a Benjamin Moore exterior latex semi-something, which they said would be good for the porch. But a couple days ago I thought that maybe I should have used a latex wood porch paint instead, after reading that porch paint was more durable than regular exeterior latex paint, as in you walk on it, but it was still flexible enough to handle weather, temperature cycles, etc., as regular exterior latex does.

If I did chose the wrong paint, it may be a little to late to change it up, unless I'm willing to disassemble and replace again more than half my work. I would not need to replace the pillars though, I could just paint over the exterior latex, but I don't think it would be good to do the same with the rails and balusters, I'd have to disassemble it, partially sand before overpainting, and deciding wether to sand and repaint or replace the balusters from scratch.

So, did I use the wrong paint, what do you think ?

B M is quality paint and you got exterior. Pre paint prep is the key and sounds like you know that - I'd proceed without a second thought. Good Luck

My whole front porch, sheds, etc are BM exterior.

It’s great paint, you’re fine.

It’ll be fine.

What you don’t want is trying to put oil based paint over latex

It's probably fine, if you used a primer it's definately fine.

Yes, I used a primer. Started out with Zinsser Bulls Eye 123, then switched to Kilz 2 after the Zinsser ran out. The Kilz 2 flows easier, it's a little cheaper, and it's working nicely. Everything I'm using is water based, except I had to pick up some Zinsser Bin shlac based knot sealer, when some wood knots bled through the Ben Moore paint. For those guys I sanded the spots, hit them with the Bin, then spot prime and repaint, I'm pretty sure that will take care of it. I think the Bin somehow seals the knots chemically so their sap can't bleed though the paint. I had the same problem in an interior florida room with painted wood, and the darn stuff worked. I used Benjamin Moore interior latex for that, and those knots have stayed in their place, though it's only been a year so far. I guess if they came back, I guess you could use some kind of two part resin or epoxy type something to seal them, but my guess is the Zinsser Bin will prob take care of it permanently.

If you aren’t painting the floor it shouldn’t matter. If you are and can just switch to the porch paint for the floor I’d do that.

For non walking surfaces the SG is the correct product

For the floor it’s the incorrect product but won’t harm anything

The normal SG isn’t designed to be walked on being a “softer” finish than a porch and floor