1. JR_Charger

    JR_Charger FBBO Gold Member FBBO Gold Member

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    I'm primarily looking to treat small hardware as in this video -



    and soften the Ziebart on the bottom of my car so I can scrape it off easier. I may use it to loosen rusty nuts and bolts but I usually use a big impact wrench for that, so it's not a "must."

    This Bernzomatic with a hose would be great for working under a car, but some of the reviews say it falls apart after a couple years. It appears like a lot of the cheaper units have that problem.

    On the higher end of things, there's the McMaster-Carr 78155A31 and 78245A26. The 78245A26 puts out half the heat of the 78155A31. The 78245A26 can be equipped with the 78615A15 hose. I don't know if the 78155A31 torch can use the hose.

    What do you think?
     
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    • toolmanmike

      toolmanmike Henchman #2 Staff Member FBBO Gold Member

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      I have one with a hose and one without. I prefer the one with a hose best.
       
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      • Red63440

        Red63440 FBBO Gold Member FBBO Gold Member

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        You may be able to use a heat gun, I have in the past used a torch but it can be hazardous.
         
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        • eldubb440

          eldubb440 more miracles than Jesus FBBO Gold Member

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          if you can heat the back side it gets really easy, but yes, burnzomatic all the way

          I also customized a few different metal scrapers with rounded corners....... even one with a rounded face..... flexible is good too
           
          Last edited: Dec 20, 2021
        • zyzzyx

          zyzzyx FBBO Gold Member FBBO Gold Member

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          I have a Bernz-O-Matic MAPP gas torch with a hose. burns alot hotter than Propane
          so if you are sweating on a collar for a toilet or another big job, you've got the heat!
           
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          • toolmanmike

            toolmanmike Henchman #2 Staff Member FBBO Gold Member

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            Yep I have a mapp with a hose. Damn handy for plumbing. I love sweat soldering copper.
             
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            • Darter6

              Darter6 FBBO Gold Member FBBO Gold Member

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              I agree. Yeah, check before you buy to see if it will use both gasses.
               
            • Stanton

              Stanton Well-Known Member

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              Hire a guy to come and blast it off with a hotsy - you'll be forever grateful.
               
            • 440 4 speed

              440 4 speed Well-Known Member

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              Don’t know where you live. Don’t know about Zoe art, but if you have factory undercoating it comes off very easily if the temperature is around 32F or colder and a scraper is used.
               
            • 440 4 speed

              440 4 speed Well-Known Member

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              Spell check is sometimes not good, Ziebart.
               
            • JR_Charger

              JR_Charger FBBO Gold Member FBBO Gold Member

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              It's below freezing ATM. I've already removed most of the undercoating from the rear bumber to the crossmember the shocks bolt onto, and the rear fender wells. I used chisels and it came off fairly easy, but there are some spots where it's stuck on too well. There's also a slight layer being left behind, sometimes. I'll think I've got it all, then I move the light and there's more, and after cleaning that I move the light again and there's more . . .

              I've got a lightweight heat gun, maybe that's enough? Uncle Tony uses a propane torch, it didn't occur to me that the job could be done with less heat.

              Looks like we've got two votes for the Bernzomatic torch. If it's holding up for you guys I'll go ahead and get it. I don't mind saving a buck.

              Stanton - Can't run a pressure washer in my garage. My car is on jack stands with the suspension and rear end removed.
               
            • SlinktRR

              SlinktRR Well-Known Member

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              The benzomatics are pretty good quality for the price. I've been using mine for several years and hold up well. Comes in handy for rusted parts like seized brake drums and stuck torsion bars. I like the modular torch system you can just swap cylinders for different gases for higher temp capability. Recommended.
               
            • BB BELLA

              BB BELLA Well-Known Member

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              mapp fumes are pretty hard on the eyes! I use my Fana heatshrink gun when required, that thing can blow some serious heat quickly to a large area and be controlled placement,flame size. even removes planetary housings from trans. cases which are suppose to be non servicable! My son took it to tech school and trained the teacher when told it couldn't be done!
               
            • JR_Charger

              JR_Charger FBBO Gold Member FBBO Gold Member

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              The Amazon link says the Bernzomatic BZ8250HT is, not "made in the USA," but the country of origin is the USA. Not sure what to make of that, but I'd pay a little more to buy America a new aircraft carrier than to buy China a new carrier.

              I watched a video where they got higher temps out of propane than MAPP when they used the same tip. If MAPP fumes are bad, I don't want them building up under the car with me. If it was summer I could blow them away with a fan, but it's too cold for that now. I'll use propane.

              I didn't know there were propane powered heat guns. I'm sure that's a few times stronger than what I've got. They're not cheap though, and it's not a tool I'll use often.
               
            • ckessel

              ckessel Well-Known Member

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              Set a fan up to pull the fumes and smoke away from you.
               
            • JR_Charger

              JR_Charger FBBO Gold Member FBBO Gold Member

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              I bet that would work with a big garage fan, but I've only got a 20" box fan.

              If the propane doesn't make enough heat, I can switch to MAPP later.
               
            • ckessel

              ckessel Well-Known Member

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              Box may work, give it a shot
               
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              • SlinktRR

                SlinktRR Well-Known Member

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                A side benefit of the handheld torch: burning critters. My old GTX was full of brown recluse spiders and nests in the underside from sitting for about 20 years before I got it, the benzomatic came in handy for roasting them out of existence.
                 
              • JR_Charger

                JR_Charger FBBO Gold Member FBBO Gold Member

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                Any chance a torch can weld this skinny metal around the wheel wells?

                rear-rust-and-bondo-09.jpg

                Looks like this is only 1/16" thick at most.
                 
              • conv67bdere

                conv67bdere Super Moderator Staff Member FBBO Gold Member

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                Have you tried a needle scraper on the rustproofing . . . I used a scraper on 3/4 of my car . . . and it was "okay". Then I tried the Needle scraper and finished the last 1/4 of the car ( the hardest part ) in a couple hours . . . HUGE difference . . . wish I had used it on the whole car . . .

                It looks like this . . .

                SUNSX246_1200Wx1200H.jpg

                Look up a YouTube video on this thing . . . It's really pretty cool.
                 
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