Hi All,

I'm glad to share a source I've found for Thompson leaded flux.  I've tested it and it works well with the vintage Thompson enamels I have.  I realize there are always concerns when dealing with enamels/fluxes that are this old, however this seems to have been stored well.  The source is an ebay seller and here is the link:

http://cgi.ebay.com/Enamel-Flux-Powder-Oz-U-Choose-Quantity-/120597188163?pt=LH_DefaultDomain_0

The price is very reasonable, too!

Cheers,
Diana

I have some old Thompson leaded enamels that I've had for 25 to 30 years. I haven't used them much, but I lightly grind them in distilled water before I use them. Don't remember where I heard to do that. After I grind them, there is a dusty looking film floating on the surface of the water. The enamels work like new after that, but I haven't tested them without grinding. They have been stored in their original containers, some in plastic jars and some in plastic bags, but it is very dry here in Colorado. Jim