On Mon, 28 Nov 2016 14:03:20 -0600, Califbill
wrote:

Freon cleaner was expensive. We got it in 5 gallon cans to clean our
computer equipment in the 1960's. EPA Was what phased it out as cleaner,
not cost.

You are both right. The "cost" was the tax the EPA put on freon. I
still have a can or two of the old freon spray.