I've used them. Worked for a while, but now I'm back to adding 134a. They are not
worth the money.
Jerry

----- Original Message -----
From: "Robert Fisher" <refisher@MCHSI.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, May 13, 2005 1:21 PM
Subject: Re: AC Service Prior to Pressure

> There are a number of various brands and types of 'sealers' that are
> supposed to help combat this problem; I haven't used any and I'm generally
> suspicious of them in the same way that I'm suspicious of coolant system
> 'stop leaks'. Perhaps someone that has used 'em has some info for us?
>
> Cya,
> Robert
>
> ----- Original Message -----
> From: "Roger Sisler" <rogersisler2000@YAHOO.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Friday, May 13, 2005 9:54 AM
> Subject: Re: AC Service Prior to Pressure
>
>
> > Another consideration- 134a will need new barrier hoses to prevent leaks.
> > If you dont mind a leaky compressor and wrong hoses , you will be ok.Just
> > recharge every year till the compressor cant take the pressures anymore.
> > 50
> > feet of barrier hoses , using your old fittings will cost about
> > $350.Commparison of the two molicules is that the R_12 molecul(sp-again!)
> > is like a beach ball , and a 134a molicule is like a golf ball.It will
> > migrate through the rubber.Being enviornmentaly correct with vanagon a/c
> > is
> > difficult any way you go, unless money is of no concern.It may actually be
> > much cheaper to go r-12 is many cases.