Blue Demon BDTP-125-01T Triple Play Low Temp Aluminum-Zinc Brazing Rod 1/8" x 18" 1 Lb Tube,

De las 3 marcas que e probado en este tipo de producto, esta es con la que mejores resultados e tenido y con la que menos e batallado a la hora de estar aplicando.

It’s not working . Not good Don’t buy. I lost time and money.

It does take some skills and knowledge to do it properly ( watched some YouTube tutorials) , but it can be done with minimal tools, in my case for a simple 3 mm aluminium box , it did the job as I needed, the weld feels strong, I can't damage it by bending the box.

This low-temperature aluminum brazing rod is economical, easy to use, and effective (IF you follow the directions). I used this rod to seam braze 75 aluminum joints (300 total brazes) that had broken on an aluminum pontoon boat canopy frame that had collapsed during a storm. Most of the joints were 1" x 1" aluminum square tube" with heavier duty/guage rectangular aluminum at the base of the frame. This fluxless aluminum rod worked well for this purpose, but only when the instructions were copiously followed, which, in essence, are: 1) Secure your joint (vice grips, clamps, etc.) and copiously clean all aluminum surfaces to be brazed with a large new stainless steel ("SS") brush (buy one large brush and 2 or 3 small brushes), 2) get a good "handheld" torch (I tried several and found "Mag – Torch" the best) with a hose (sold separately from the torch for about $20) that connects the torch to a "map gas" cylinder (hotter than propane and available in all home improvement stores), 3) frequently use your small stainless steel brush on the area to be brazed during the heating and brazing process to remove impurities ("oxides"). if you don't brush, your braze will be significantly weakened or may not adhere at all. 4) frequently test the heat of your metal by running the aluminum rod over the joint area. When the rod begins to easily melt (from the heat of the rod against the hot metal only- absolutely not from the direct heat of the torch) deflect the torch flame away from the joint and begin "tinning" the joint ( tinning = applying a light coat of melted aluminum from the rod to the surfaces you abraded with your small stainless steel brush). 5) Put the flame back on the joint for 3 to 5 seconds to be sure that the tinning adheres, then remove the torch to let the tinning coo/solidify for 5 to 10 seconds. 6) Use your stainless steel brush again to clean the oxides from the tinned area, 7) reheat the joint to where your aluminum will again melt the rod and apply a generous coat of melted aluminum to the tinned area of your joint, 8) finish the joint braze with about 4 or 5 seconds more heat from the torch to increase final adherence of the melted aluminum to the joint. 9) If you see impurities (oxides) in your braze, don't be afraid to run your small brush through your braze to clean out the impurities to strengthen your joint. This "brush through" may require you to melt a little more aluminum on your joint but the joint will be stronger for it. In sum, secure the work, use new stainless steel brushes to frequently clean work, metal not torch must melt aluminum brazing rod, "tin" all brushed areas, apply final braze coat, and always finish with more heat for adherence. Practice on a few joints before doing your finish work. Everything will seem very awkward at first as you juggle the torch, the brush, the rod, and the correct heat. Within about 5 to 10 joints you will feel like a professional. If you cut corners though and don't get the work hot enough or don't frequently keep your joint clean of the oxides with the brush your brazes will look pretty but won't hold and your time will be wasted. Good luck!

Billig ( gebraucht ,sehr gut) Prime geliefert ,dauerte etwas länger da das aus England kam ( zoll..) Wenn man weiß wie man es machen muss *ein top Produkt sehr schöne schweißnaht, dicht. Ich habe damit meine regenrinne am Haus repariert. * das Material muss warm gemacht werden ( z.b Gasbrenner) und nicht die schweißstange!! Öfters testen ob das Material warm genug ist ,in dem man mit der Elektrode darüber reibt, damm Flamme weg und mit der Elektrode zu machen