Where to Buy Liver of Sulfur Gel

In Toning MetalLeaf with Liver of Sulfur, I describe how to create a patina with a liver of sulfur gel. Several people, who have read the story, have asked what brand to use and where to buy it. I have used the XLGEL brand,  manufactured by AMPS Industries in Birmingham, AL.  On their website, www.xlgel.net, they list several suppliers in the USA, Great Britain, Canada, Australia and New Zealand.  You can also buy it on Amazon.com.  A 4 Fl. Oz. jar will cost about $15 to $18 USD.