Which paint do you use? I am familiar with different brands of paints and have discovered that its more of an art than a science. Some of the paints in the markets are grossly overpriced. I have discovered several formulas which a person can make own paint. For a cheap undercoat, mixing slaked lime with spoilt fermented milk will make an excellent water paint which can be applied on stone buildings. Add some vinegar as a preservative. Which paints do you use or do you have a homemade formulation you would like to review for us?