All Classified forums require a Site Supporter subscription. It is only $25 per year and you can buy and sell whatever you like on the forum. To become a Site Supporter, go to Your Profile and select "Paid Subscriptions."
https://shop.advanceautoparts.com/p/permatex-thread-sealant-with-ptfe-4-oz.-80632/16160023-p?product_channel=local&store=9671&adtype=pla&product_channel=local&store_code=9671&gclid=EAIaIQobChMI1tv6kNqI5QIVzsDACh3o0AGzEAQYBCABEgJekfD_BwE&gclsrc=aw.ds