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Your cart is empty.Bernzomatic AL3 Aluminum Brazing/Welding Rods with 12-Inch Rods of Working Temperature 720-750 Degrees, 2-Piece
Customer
September 4, 2025
used this to braze some aluminum pieces together. worked very well however it does take practice and patience. My tig skills are not the best but I can solder so thought to give this a try. very satisfied with this product. I found that it does take a lot of heat on the metal to get it going, and like other reviews have said its necessary to heat the metal and melt the rod into it. It does help to use a tig tungsten to direct the puddle as it does not flow to rapidly which is actually good as it helps fill holes. Best procedure is to get the parts as hot as you can and use the rod very sparingly. this will give the best flow and get just enough rod around the parts to form a nice bead which then requires less clean up. then wait a while for everything to cool down. I had to remind myself several times that welding gloves are not tongs.
Spare Time
August 29, 2025
Works really well for what it is. I used this to repair a puncture hole on an older aluminum bicycle frame, and I was initially having issues using a smaller torch, I couldn't get the product to melt on the frame. I picked up a bigger handheld blow torch from Harbor Freight, still using regular green tank propane and was working within minutes. The sticks are fairly easy to work with, as long as you don't let it run and don't apply heat directly to the stick. I have some welding experience from working in a steel yard, but none in brazing or aluminum welding and this product was very easy to use for a first time user. I just watched a few YouTube videos and dove right in. I was able to span a hole almost an inch in diameter by using a circular technique, and I built up the product enough to where I was able to grind and sand it smooth afterwards. I just had to be careful of overheating the existing product I had laid down as I was building it up, or else it would run or drip. The size of the torch was really paramount, as was heating the area surrounding your work. You would never have known there was a big puncture hole in my bike frame at one point, unless you stripped the paint off and saw the difference in colors of aluminum. Highly recommended for small repairs, and saved me from going to an aluminum welder or bike repair shop.
Mike in PA
July 30, 2025
I have a 2004 Nissan Altima. The bolts that's control the rear wheel alignment run through bushings and they rusted in place over time. One of the bolts that I had to cut off was at the top of the knuckle where the bottom of the rear shock mounts. It was dark, and I was stupid, and continued. You know the rest, I cut into the knuckle a bit.After pressing the bushing out, I thought about ways to repair the damage I had done. JB Weld was on the top of the list, but I thought it'll be more effective to use a quasi welding method. I came across these Al brazing rods and thought I'd give them a try.They didn't work for me, but that doesn't mean they can't work for you. To use these rods effectively, you have to treat them like solder. The base material has to be hot enough to melt and flow the Al. I wasn't able to do that simply based on my heating materials (MAPP torch) that I had available as well as the mass I had to heat. The torch just couldn't heat the knuckle to the brazing rod's working temperature (flow) point, which is around 725F. Other than that, I could see these 100% working well. I was able to make them a flow and work very well on smaller, practice items.So, before you discount these as an option to your repair, think about what you're trying to do and if you have enough heat to get to that working temperature. They will work if you do.
David W.
July 6, 2025
Tried to repair a microchannel condenser coil. Used Mapp gas and the stuff would flow out and stick but it would not seal. Looks like it would work for mechanical parts but for gas pressure.Concerning heat, propane torch will work on thin stuff, Mapp gas on thicker stuff, and I have had to use acetylene on really thick aluminim.
SamuraiX
June 25, 2025
I come from a sheet metal, iron work, welding background. Did some copper brazing with the HVAC service guys with my company back in the day. Also never welded aluminum, always heard it was difficult as it doesn't change color when hot, usually just disintegrates.Had an issue where the welded hinge on my fence broke, likely due to overheat from the weld. Well, haven't welded in over 20 years and don't own the machines anymore, so I looked this up and watched a youtube vid about it. Well the guy was right, just need to wire wheel the oxide off and it's ready to braze. The guy said you can use propane, and here's where I disagree. Sat there 10 minutes heating the thing, still couldn't get it hot enough. Used a benzomatic mapp/oxy kit and did a great job. I added a pic for your review, the area brazed is to the left of the weld, so I did not get a before pick, but you'd be impressed of the difference as the whole thing was cracked and broke off. So I am a beleiver and will buy again if I have any aluminum work in the future.
luv2shop
May 9, 2025
Had a crack on the chain stay of my bike and I couldn't find any shop to repair it (Reasonably)So I decided to just do it myself.I used my plumbing acetylene torch and it worked like a charm! Actually didn't even need that much heat. Probably could use a small handheld propane torch.I'm very happy with this product.I'm no pro but I fixed the crack and I'm confident in the joint.
Customer
April 25, 2025
Not working, rolls right off the cast Iron, with or without flux. Title should be for aluminum only. Tried may ways to with all different Youtub instruction but the tin melts just roll right off the metal. Yes, I did prepped the surface. Not to be use with cast iron, description misleading. Too bad I only have half of rod left so I can't return it.
JM
April 18, 2025
I had a few cracks in the muffler on my KX250F dirt bike. These filler rods worked perfectly. It saved me $50.00 that a local welder wanted to tig the muffler. I used mapp gas to heat the aluminum prior to filling the three cracks in the exhaust. The brazing cleaned up well, after grinding down the excess filler. Highly recommend.
mr darren colin graves
April 12, 2025
I was looking for a product to 'weld' two thin walled aluminium tubes together, I was always a little too heavy handed with my tig welder, I have a great deal of experience with plumbers soldering and brazing.I followed the instructions and tutorials on youtube. Using a plumbers torch, I heated the Ali til the Bernzomatic rods melted with the heat from the ali, once you have filled the area with the rod, I found that I could flow the area better by wiping a tungsten mig electrode through the welded seem, you must keep the weld area hot, ends up looking like a soldered joint.Very happy
Madazz
March 29, 2025
great rids for quick repairs, easy to use, melt and flow nicely.
Sparky Steve
March 26, 2025
Wow, I bought a few different brazing rods including these brand name and the no-name. Wow wow wow what a difference!!! The photo of the lumpy metal is the absolute best I could do with the no-name rods that were bought in a pack of 20. The smoother welds were done with the Benzomatic. It flowed like solder into the aluminum, even filling a big gap in the boat.Note also that the no-name rods are very thin, the benzomatic probably has about double the volume per rod. That said, the 2-pack of 12 inch long Benzomatic rods only did about 9 inches of welding (granted, that was a big gap to fill) but they do go fast. I am going to need probably 5 packs to fix this boat.I did poke and pry at the weld when done, couldn't get it to budge.This was the FIRST EVER attempt at brazing aluminum.I used a braided wire wheel to scarify the aluminum and a high-temperature MAP like torch to get it good and hot.
Anaa garaa
January 21, 2025
no flux no weld this rod as no flux and does not stick well to aluminum. i have bought a new sheet of aluminum and will cnc machine cut myself as i am a 3d printer expert
Customer
December 27, 2024
This rod is easy to melt with a MAP heater. When the parent metal is very clean (using a clean scutch bright) and hot enough parent material the rod will melt when in contact with parent material and will create a nice bead. Need just a little bit of patience and dexterity not to over or under heat and not to overbuilt…use the rod end to spread the bead. Finalized the work with a file. In a nutshell Great Product!
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