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  1. #1
    Join Date
    Oct 2007
    Location
    ATLANTA
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    120

    Stop Using 15% brazing sticks. Ridiculous cut back idea!

    I would like everyones thoughts on this.

    A friend of mine got an email from a company executive and it reads like this.



    "DO NOT pick up 15% solder anymore. You should only be using 5% or 6% solder ONLY."



    The company does commercial AC and refrigeration and supposedly to add to the absurdity if you buy 15% then they deduct it from your pay check.

    I know in my own experience 410A systems NEED the 15% solder and on joints that already have 15% on them mixing in another solder is a call for disaster.

    What do you all think of this outrageousness?
    Last edited by AtoZhvac; 08-08-2009 at 08:00 PM. Reason: add info

  2. #2
    Join Date
    Apr 2008
    Location
    Pluto
    Posts
    983
    I don't see what the big deal is on using the stuff. Don't they have mark-up for welding supplies that are charged to the customer?
    Not as lean, not as mean, but I'm still a hardcore, ass-kicking, hard charging Marine! Oohrah!

  3. #3
    Join Date
    May 2000
    Location
    Urbandale IA. USA
    Posts
    4,939
    I say THAT commercial company is WRONG, and will regret it later.
    Anyone who thinks that stay-bright or 5-6% is good enough is just kidding themselves.
    It has been my experience that ONLY 15% or better will hold up for more than 10 years.

    Maybe they are looking for out of warrenty business.....
    Those who dance, appear insane to those who do not hear the music.
    Those who believe, appear ignorant to those who do not know God.

  4. #4
    Join Date
    Apr 2007
    Location
    Kaufman county, Texas
    Posts
    10,247
    Agreed. Foolish. Given the cost of freon and labor vs. the cost of solder, one warranty leak on a commercial size charge will destroy any savings. Not so much outrageous, as foolish. An accountant making service decisions?

  5. #5
    Join Date
    Apr 2007
    Location
    St.louis metro area
    Posts
    315
    Quote Originally Posted by Lee Adams View Post
    I would like everyones thoughts on this.

    A friend of mine got an email from a company executive and it reads like this.



    "DO NOT pick up 15% solder anymore. You should only be using 5% or 6% solder ONLY."



    The company does commercial AC and refrigeration and supposedly to add to the absurdity if you buy 15% then they deduct it from your pay check.

    I know in my own experience 410A systems NEED the 15% solder and on joints that already have 15% on them mixing in another solder is a call for disaster.

    What do you all think of this outrageousness?

    Sounds like you work with a bunch of bean counters to me.

  6. #6
    Join Date
    Aug 2004
    Location
    North Richland Hills, Texas
    Posts
    14,915
    Well, if all the fittings are a good tight fit, there really isn't a "reason" to use 15%.
    The main benefit to using 15% is that it has much better gap filling properties than alloys with lower silver content. The joint strength and vibration resistance is pretty much the same.

    Other than that, 15% is marginally easier to flow around a joint, but that is about it.

    I only buy 15% mostly because I only want to have to keep track of one brazing alloy, but also because I hardly ever see a refrigerant pipe system where EVERY joint is a nice tight gap free fit...
    If more government is the answer, then it's a really stupid question.

  7. #7
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,307
    5% works on R410A systems.

    Doesn't flow as well as 15%. So takes a little extra care.

    Lots of 5 and 6% joints out there for 15 and 20 years that don't leak.

    I prefer 15%.
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  8. #8
    Join Date
    Sep 2007
    Location
    NC Coast
    Posts
    2,604
    Quote Originally Posted by beenthere View Post
    5% works on R410A systems.

    Doesn't flow as well as 15%. So takes a little extra care.

    Lots of 5 and 6% joints out there for 15 and 20 years that don't leak.

    I prefer 15%.
    LOL... color me stoopid! :d
    I didnt even know there was a 5 or 6 percent animal!
    Silent Service........ Death From Below!

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  9. #9
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,307
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  10. #10
    Join Date
    Jul 2008
    Location
    Denver, CO
    Posts
    4,229
    There are other brazeing rods on the market that contain little or no silver with the same tensil strength as silver. Blockade is one of them it is a Phosphorous/copper brazing alloy with silicon it contains no silver. I used it for awhile a few years back when it first came out. It didn't flow as good as silver but it did the job with the same strenght as silver and was a lot cheaper than silver rod.

  11. #11
    Join Date
    Jan 2004
    Location
    Here and there
    Posts
    4,805
    Sorry gents 15 is the best but Stay Brite is better than a braze joint that was not drifted.
    i belong to peta ... people eating tasty animals. all my opinions are just mine.

  12. #12
    Join Date
    Dec 2007
    Location
    houston, texas
    Posts
    3,787
    I only use 15% when sticking copper to brass, 5% works just fine if you know what your doing.
    I'm not tolerating Political Correctness anymore, from now on it's tell it like it is.

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  13. #13
    Join Date
    Sep 2007
    Location
    NC Coast
    Posts
    2,604
    Quote Originally Posted by Texas-Tech View Post
    I only use 15% when sticking copper to brass, 5% works just fine if you know what your doing.
    thats just it... I never was trained on how to braze..... Just picked it up myself with a limited amount of "just do this" help!
    so..... I guess I dont know what I am doing!
    Silent Service........ Death From Below!

    Somewhere in Kansas, a town found a village idiot!

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