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I have a commission that I'm starting soon, and I want to make sure I'm using the right paint. It's for a stone dolphin statue, and of course I want to make sure the paint won't fade, or crack, or peel, etc.
Can I just use regular acrylic, or should I use something different?

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    Where will the statue be placed once it's done? Outside or inside? Should it be able to withstand regular usage, or will it be purely decorative?
    – Joachim
    Commented Apr 22, 2019 at 21:55

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Sealing the concrete is the crucial step. I'd be using two coats of external plastic primer. You can buy primers with more than usual grip, but they cost twice as much (worth it). Then I would paint with a paving paint for extra durability. You might be able able to buy sample pots of enough paint for the whole job.

At some stage someone is going to have scrub it clean of dried bird droppings or even high-pressure wash it, so your paint will need to withstand this.

If children are going to clamber over it, or people are touching it as they walk past, I'd consider a final clear coat of a slate/concrete sealer to prolong the life of the paint.

I'd also give the new owner you left over paint or at least the color formula so they can touch up if they need/want to, with details of the products you used for each coat.

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