Having read the original posts on this material, and in the process of adding
A/C to a westy, I purchased some. I ran the info by a friend knowledgeable in
A/C and other matters associated with this field (I am not an expert) just to
be sure it was safe. It is not. This is a mix of propane and butane. It may
be legal but certainly not something I want in my van. A real issue is if
having the AC serviced by a tech unfamiliar with this material. He may use a
flame type leak detector with catastrophic results.
Propane was used many years ago as a refrigerant because of its outstanding
thermal properties - but one drawback - it explodes when ignited (think
fuel/air bomb). Thats why they don't use it anymore. I thought I would post
this just in case some one was considering using ES-12. Just my opinion, hope
it helps.
John
'84 Westaru