If you want to search out lime information online, www.lime.org is a good starting point. This is an international association of lime producers. There is also the trade forum www.limeonline.com. I buy high calcium lime, type "N" from Chemical Lime company, their website www.chemicallime.com Go to the map and find that they have high calcite plants all over the U.S. - contact a sales office to see where the nearest retailer is (US or Canada). There are at least three other lime companies, I am not sure which produce the high calcite lime.

I also have an old publication from the lime association on how to make different whitewash formulas, for different purposes. Email them, or me if you are involved with this. I feel that we should be encouraging the use of lime paints because of their vastly superior environmental qualities. They dropped out of favor purely for economic reasons - why buy a tin when for a little bit of effort you can make it yourself. Again a case where modern is not necessarily better -its just a way to make a quick buck.