[modern] Refrigerant sealant conditioners etc

Last summer I investigated a refrigerant blend to use in my 85XJ6 but I never
put the engine back in the car. I need to top off the 90 XJ6 and I’ll
probably go with a blend product called R406a from Autorost.

While looking around I came upon a website for a product that will seal any
leaks and products that will remove moisture from the system. Anybody ever
used these sealants? http://www.ssrintl.com/

90 XJ6