RCCrawler Forums

ser3100 · 03-23-2010, 08:14 AM

Hey all i started to do some braze work and noticed something different about what im doing and what im seeing from most build threads. First off im using the dark grey flux from home depot, Oatey solder, a Benzomatic MAPP gas system, and 3/16 solid rod. All of the above are from home depot. I have not been able to make the switch to Harris yet but will soon.

Anyways when seeing most of the build here that use brazing i see that the joints are goldish in color and seem to flow very well. When im done with mine, the joints are a dull silver in color and dont seem to flow as well. when i heat up the metal and flux, it seems the flux burns off before i can put the solder to it and im left with what seems to be burn marks or charred flux. It is the stuff im using? would i be better off with hollow brakeline? Please help. Im making stuff come together but it just doesnt look as clean as the stuff im seeing.

passinby · 03-23-2010, 10:03 AM

I believe its your solder and flux

ser3100 · 03-23-2010, 10:52 AM

So the Harris stuff will work alot better? I know everyone else is using it but i have heard of some people using the Oatey stuff with good results as well.

throttlejock27 · 03-23-2010, 12:18 PM

is the sloder your using come on a roll and bends easy? if so thats a low temp solder used for mainly copper work. you need the higher temp sticks for brazing. and the flux you need is normally a white color and a "pasty" texture.

ser3100 · 03-23-2010, 12:34 PM

Yes the solder that im using comes in a roll. The flux im using is grey in color. I guess i really need to find that harris stuff. do i really need a pencil tip for my torch. I got the Benzomatic kit from Lowes that came with a "better" torch head than my previous one but its still no pencil tip one.

ser3100 · 03-23-2010, 12:43 PM

Here's the torch kit that i have:
http://www.lowes.com/pd_128825-717-2880093_0_?productId=3130227&Ntt=benzomatic&Ntk=i_products&pl=1&currentURL=/pl__0__s?newSearch=true$Ntt=benzomatic&spellCorrectedTerm=bernzomatic

Heres the solder:
http://www.homedepot.com/h_d1/N-5yc1...atalogId=10053

The flux: Its one of these. Not sure which one though.
http://www.oatey.com/Plumber/Shared/...p/64/Flux.html

throttlejock27 · 03-23-2010, 12:47 PM

yea thats the wrong solder. thats for copper/brass work. you need the brazing solder and brazing flux

freetimecrawler · 03-23-2010, 02:29 PM

Get the Harris safetysilv and flux, and you'll never look back.
You'll be brazing with professional looking joints in no time

It is a bit expensive, but well worth it.

caymin last · 03-23-2010, 05:58 PM

Soldering and Brazing are two seperate/different ways of joining metalic material. Brazing requires much higher temps and results in a much higher PSI tensile strength. Using regular solder, is a waste of time, as far as this type of application goes.
Here is all the info on Brazing: http://www.handyharmancanada.com/The...ents.htm#Index

ser3100 · 03-23-2010, 10:27 PM

Just picked up some stay silv flux for $8 for the big tub and 1 troy oz of 45 for $22. Hows that sound? I tried the safety silver 45 and good god its strong! I also noticed that the metal must be way hotter now or else the flux does not liquify, but once it does, you only need a small amount of the 45 to make a strong ass joint. Now i know why you all use this stuff. Expensive, but well worth every penny!

RyansRubicon.co · 03-25-2010, 03:19 AM

Man, you said it. I tried the Oatey stuff earlier this week thinking I could get it to work, OMG what a joke. I just picked up Harris 45 and the Harris white flux like all the cool kids, and wow what a difference having the right material makes. I just started my first cage today my first time brazing. I won't jack your thread but here's the beginning of my first attempt at brazing...

ser3100 · 03-25-2010, 07:13 AM

Thats beautiful right there. Great work! Cant wait to get started on the cage for my scaler.

RyansRubicon.co · 03-25-2010, 08:09 AM

Quote:

Originally Posted by ser3100

Thats beautiful right there. Great work! Cant wait to get started on the cage for my scaler.

Thanks, can't wait to see what you come up with

03-23-2010, 08:14 AM	#1
ser3100 RCC Addict Join Date: Feb 2006 Location: Bellflower, CA Posts: 1,028	Question about brazing Hey all i started to do some braze work and noticed something different about what im doing and what im seeing from most build threads. First off im using the dark grey flux from home depot, Oatey solder, a Benzomatic MAPP gas system, and 3/16 solid rod. All of the above are from home depot. I have not been able to make the switch to Harris yet but will soon. Anyways when seeing most of the build here that use brazing i see that the joints are goldish in color and seem to flow very well. When im done with mine, the joints are a dull silver in color and dont seem to flow as well. when i heat up the metal and flux, it seems the flux burns off before i can put the solder to it and im left with what seems to be burn marks or charred flux. It is the stuff im using? would i be better off with hollow brakeline? Please help. Im making stuff come together but it just doesnt look as clean as the stuff im seeing.

03-23-2010, 10:03 AM	#2
passinby Quarry Creeper Join Date: Oct 2009 Location: stephens city Posts: 267	I believe its your solder and flux

03-23-2010, 10:52 AM	#3
ser3100 RCC Addict Join Date: Feb 2006 Location: Bellflower, CA Posts: 1,028	So the Harris stuff will work alot better? I know everyone else is using it but i have heard of some people using the Oatey stuff with good results as well.

03-23-2010, 12:18 PM	#4
throttlejock27 Rock Crawler Join Date: Feb 2010 Location: rochester, mn Posts: 579	is the sloder your using come on a roll and bends easy? if so thats a low temp solder used for mainly copper work. you need the higher temp sticks for brazing. and the flux you need is normally a white color and a "pasty" texture.

03-23-2010, 12:34 PM	#5
ser3100 RCC Addict Join Date: Feb 2006 Location: Bellflower, CA Posts: 1,028	Yes the solder that im using comes in a roll. The flux im using is grey in color. I guess i really need to find that harris stuff. do i really need a pencil tip for my torch. I got the Benzomatic kit from Lowes that came with a "better" torch head than my previous one but its still no pencil tip one.

03-23-2010, 12:43 PM	#6
ser3100 RCC Addict Join Date: Feb 2006 Location: Bellflower, CA Posts: 1,028	Here's the torch kit that i have: http://www.lowes.com/pd_128825-717-2880093_0_?productId=3130227&Ntt=benzomatic&Ntk=i_products&pl=1&currentURL=/pl__0__s?newSearch=true$Ntt=benzomatic&spellCorrectedTerm=bernzomatic Heres the solder: http://www.homedepot.com/h_d1/N-5yc1...atalogId=10053 The flux: Its one of these. Not sure which one though. http://www.oatey.com/Plumber/Shared/...p/64/Flux.html

03-23-2010, 12:47 PM	#7
throttlejock27 Rock Crawler Join Date: Feb 2010 Location: rochester, mn Posts: 579	yea thats the wrong solder. thats for copper/brass work. you need the brazing solder and brazing flux

03-23-2010, 02:29 PM	#8
freetimecrawler Debunking old stereotypes Join Date: Feb 2006 Location: 1st and Amistad Posts: 2,260	Get the Harris safetysilv and flux, and you'll never look back. You'll be brazing with professional looking joints in no time It is a bit expensive, but well worth it.

03-23-2010, 05:58 PM	#9
caymin last Rock Crawler Join Date: Jun 2008 Location: Naples Posts: 609	Soldering and Brazing are two seperate/different ways of joining metalic material. Brazing requires much higher temps and results in a much higher PSI tensile strength. Using regular solder, is a waste of time, as far as this type of application goes. Here is all the info on Brazing: http://www.handyharmancanada.com/The...ents.htm#Index

03-23-2010, 10:27 PM	#10
ser3100 RCC Addict Join Date: Feb 2006 Location: Bellflower, CA Posts: 1,028	Just picked up some stay silv flux for $8 for the big tub and 1 troy oz of 45 for $22. Hows that sound? I tried the safety silver 45 and good god its strong! I also noticed that the metal must be way hotter now or else the flux does not liquify, but once it does, you only need a small amount of the 45 to make a strong ass joint. Now i know why you all use this stuff. Expensive, but well worth every penny!

03-25-2010, 03:19 AM	#11
RyansRubicon.co Rock Stacker Join Date: Sep 2007 Location: Yuma Posts: 96	Man, you said it. I tried the Oatey stuff earlier this week thinking I could get it to work, OMG what a joke. I just picked up Harris 45 and the Harris white flux like all the cool kids, and wow what a difference having the right material makes. I just started my first cage today my first time brazing. I won't jack your thread but here's the beginning of my first attempt at brazing...

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03-25-2010, 07:13 AM	#12
ser3100 RCC Addict Join Date: Feb 2006 Location: Bellflower, CA Posts: 1,028	Thats beautiful right there. Great work! Cant wait to get started on the cage for my scaler.

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