I'm getting ready to paint the exterior of my home, and I bought flat latex paint. Unfortunately, I now realize I should have bought semi-gloss. Can I mix the flat latex with a semi-gloss or gloss of the same color, so I don't have to discard the flat paint?
If you mix flat and semi-gloss you'll end up with something in between.Since the bases of flat and semi-gloss paints are entirely different I wouldn't recommend it.If you are dealing with a decent paint supplier,they should exchange your flat for semi-gloss unless it's a custom color you had mixed.In that case,I'd ask them what their paint will do when mixed.