Today I bought three cans of Slip Plate for $8.18 per can at Grainger. That's their retail price per individual can.
If you have a Grainger store nearby, your company may have an account under which you may (or may not) get a discount off retail. In my case, my company has an employee account there that includes retirees. No discount, though.
If you do not have company access to Grainger, they will provide you with an "accommodation membership." You pay their full retail price of $8.18 per can, in this case. With an accommodation account you may have to pay by cash or check. With a corp acct you can use plastic. Doublecheck that. I may have that wrong.
Grainger is also online at
www.grainger.com . There you can find the Slip Plate for $8.18 per can plus shipping.
You want the Dry Film Lube at
http://www.grainger.com/Grainger/wwg/productIndex.shtml?from=Search&newSrch=yes&operato r=keywordSearch&search_type=keyword&action=Go!&Que ryString=slip+plate&submit.x=0&submit.y=0
At this time they have a special with free ground shipping for orders of $50 or more. Otherwise I find their shipping rather high. $12 and change for the three cans. So we drove to their store today.