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Joe,
I purchased an R-134 retrofit kit that had three (3) cans of R-134, one (1) can of pressurized oil, and the necessary hoses, valves, and R-134-unique quick-disconnect fittings.
The above would have been enough R-134 & oil to recharge & retrofit my car, but...as I mentioned, I needed to stop a leak.
So, I purchased one (1) can of R-134 WITH sealant. I believe it was between 12-16 oz....same size as the regular R-134 pressurized cans.
Voila! The R-134 refrigerant/sealant/"fix-a-flat" worked.
Who knows, maybe it won't work in your leak...but, maybe it will.
One final tip...if you can part with another $40 (i.e., $39.95 for the basic R-134 retrofit kit [includes R-134 refrigerant & fittings] and $40 for the Installation Kit Upgrade) then, I would strongly recommend purchasing this K-mart-stocked Installation upgrade kit. The upgrade kit includes a nice pressure gauge, quite long hoses, and valves that were intended to be operated "as" you install R-134, not "in-between" cans of R-134.
I didn't have this nice kit. But, it would have made the job easier & safer. I just had to remove the installation valve (after shutting off the valve)...when I "thought" it was nearing its design pressure (which, if I remember correctly, was between 24-44psi).
The 'high-dollar' (i.e., $40) valve kit would certainly make the chore easy.
By the way, the "fix-a-flat" as you call it, R-134/sealant can was about $4.00 U.S. There are other "sealants" available, I simply chose the one that was made by the same company as my R-134 retrofit kit.
I wish you luck & safety in the process.
If you have any questions, just email me back. My main goal was to give it a try, and not lose any fingers or eyes in the process. My first R-134 retrofit was on my 1984 Peugeot wagon (which has very cold a/c now), then I did my wife's 1992 Isuzu trooper. Same principle.
v/r,
Tim Grimes
New Orleans
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