It has come to a point where there is so much junk refrigerant in mobile a/c systems that the shops now have to buy an expensive refrigerant identifier and use it to prevent contaminating their good, recovered refrigerants. NOW, thanks to so many people using these supposedly miracle working sealants, the shops are now being forced into having to purchase SEALANT identifiers as well.

I'm happy for those who have indeed had success with the sealants, but if you take it to a shop, do them a favor and warn them that the sealant is in there so that they don't ruin their expensive recovery equipment. They have to earn a living like the rest of us.

My $0.02,