Re: Dura Fix
 

I've tried it with Propane, Brazing Fluid and Oxy/Acetalyne ans the first 2 would touch it, Oxy/Ace, was hard not to heat it too much and burn the materials. Work, but not nice.

Remeber the guy in the video has 100's of hour of practice and 100's of video take to get it right for the good shot.

Re: Dura Fix
 

Yup. what size and type oxy/ace tip were you using? rosebud?

Re: Dura Fix
 

ive seen the aulmaloy on tv and in person, its tricky, but its a decent tool for quick fixes here and there. not sure i would put it in situations where my life was on the line and such...

Re: Dura Fix
 

ive used the aluminum brazing ----, and it's fairly good (hobart rods though) but prepping is extremely important. roughing the edges makes a nice difference

Re: Dura Fix
 

Not strong enough for hvac applications. Most of the time the copper high pressure line sees in excess of 160psi, depending on the refrigerant used. Older systems are usually alot less than 160, so you can use silver/tin (pipe solder for all practical purposes), but even newer ones are starting to hit the 180-200psi mark. Strength is critical, especially when you first pressurize and evacuate the system. One guy I worked with lost a finger because the joint wasn't good enough...pipe blew apart and refrigerant hit his finger. Instant frostbite.

Re: Dura Fix
 

and to think all the R12/R22 we wasted in class.......

Silver/tin will hold, but it gets $$$$ for the right rods, the nickel rods end up being cheaper.

Now what to do with 4.5 pounds of silver solder rods????? :)

Re: Dura Fix
 

ok.. ive been wanting to play around so i ordered some durafix. a little torch setup and i have some aluminum im going to test this out on. Ill take some pics and maybe a vid when i get it. heres my torch i got at lowes. im using mapp gas and oxygen setup(50 bucks). It can cut steel quickly and steels melting point is like twice aluminums so this should do the job fairly well. Total invested so far is $90 bucks. Thats the torch and rods.

http://i37.photobucket.com/albums/e5...r8/P_00112.jpg
http://i37.photobucket.com/albums/e5...r8/P_00110.jpg
http://i37.photobucket.com/albums/e5...r8/P_00111.jpg
you cant tell but i have a nice blue flame about 5/8 in long from the tip.

Re: Dura Fix
 

Looks like an interesting product.

I've never tried to work with aluminum, but this sure does look easier than tig welding.

Re: Dura Fix
 

i ordered and it came in today. works very similarly to the video. i'm using a bernzomatic torch (took a while to get hot enough). now to finish that ------- intercooler.

Re: Dura Fix
 

If you bought this you either your a smiley owning homo