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Hey "paint" guys.... gotta question for ya!


Coytee

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I have an industrial backhoe (JCB).  It's painted that proverbial "industrial yellow" and of course, is greatly faded from new.

 

I don't really care so much about the shade.....as much as "what would be the best (durable) type of paint to put onto something like this?

 

Scenario:  One of my stabilizers has popped a leak so needs to be rebuilt.  When I was inspecting it (as I was attaching new hoses to it) I noticed that the underside is nearly naked of paint so thought I'd pull it off, clean it, rebuild it and then repaint it.

 

I'm guessing that an oil base would be the most durable (?) and same with a primer (?)  Any brand specific that should be considerred first?  When I painted the fenders of my tractor, I was told to go to PPG and use their stuff.  I can do that again if their brand would work well.

 

One reason I bother to ask about this is decades ago, I had my car painted.  At the time, I was a teenager.  Took it to the car wash (mistake #1) and used their pressure washer (mistake #2) and had a spot on the side of the car where the paint literally peeled off when the pressure hit it.  So it wasn't sticking very well and this will get abused so want something sticky!!! (but not to the touch!)

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For anyone who wants a chuckle....  couple years ago, I had "Frozen Shoulder".  Well, in addition to that, I had a "SLAP" tear and a torn rotator cuff....  all on the same shoulder.

 

Then my swing cylinders decided their life was up and time for them to explode on me.  I needed to get them off however, they are heavy as lead AND you have to hold them both up in midair while taking off the plate that holds them up (then duck lest they fall and crush you)

 

Then, you have to put them up in reverse.....holding TWO 80/90 pound (?  guess) cylinders while also using your mythic third & fourth hands to lift the 50 pound plate that goes under them to hold them.

 

THEN, try that with one arm tied behind your back.

 

That is what I was up against here so I got my floor jack and a plethora of straps.  At the time of the picture, I don't recall if it was going up or coming down but got it done.  Oh, and the bolts have to be torqued to something like 400 Ft Pounds (from memory, not sure if that's correct)

 

So I also had to get a torque multiplier to aid with that.

 

It was a challenge but I'm nothing if not persistent.

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With rust already eating away at parts of it, why not just get everything prepped by scraping loose the flakes where it is peeling, then sanding it spo that the new primier will stick well...and instead of using regular primer, get some of that stuff (can't remember what it is called!) that bonds with the rust...put on a coat of that, then shoot it whatever color you want afterwards?  That way you would be killing two birds with one stone, I would think.

 

Bed liner isn't a bad idea, either....that way when you're climbing around on it, at least your shoes would have a better grip to what they come in contact with! 

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It looks like the rust is very established. Sand blasting would be the preferred method if you really want to do a pro job, most likely you that's not what you had in mind.

 

The inexpensive alternative is to treat it with a "rust converter" after using a heavy duty wire brush attached to an angle grinder to remove much of the flakey surface rust and old paint. There are many different brands of the stuff for sale that are all basically the same. Here's an example: https://www.eastwood.com/eastwood-rust-converter.html

https://www.eastwood.com/4-5-in-angle-grinder.html

https://www.amazon.com/Makita-Piece-Grinders-Heavy-Duty-Conditioning/dp/B01869GKBY

 

After that a good sanding with an orbital sander like a DA (dual action) using progressively finer grits of sandpaper. Start with 60 grit and work up to 300 or so...

 

I'd then use a brush to apply a couple of coats of enamel paint. A brush or roller is the way to go with tractors and farm implements when the surface is rough and you aren't interested in a "show car" quality paint job. Rustoleum makes a farm equipment enamel (and a primer too) that's available at most any Home Depot. https://www.homedepot.com/p/Rust-Oleum-Specialty-1-qt-Farm-Equipment-John-Deere-Yellow-Gloss-Enamel-Paint-2-Pack-7443502/202552473?MERCH=REC-_-PLP_Browse-_-NA-_-202552473-_-N

 

In the past one could purchase original decals for John Deere, Ford, International Harvester and other manufactures. A good finishing touch!

 

 

 

 

 

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Make sure you scrape then wire brush then ospho the rust first! Sikkens is fantastic, mostly two part stuff (aliphatic epoxy) at $150 a quart on the late 90s. You have a commercial paint store in town near you? The one here was useless compared to the one in Orlando years ago. A good one would help you out!

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8 hours ago, Coytee said:

I have an industrial backhoe (JCB).  It's painted that proverbial "industrial yellow" and of course, is greatly faded from new.

 

I don't really care so much about the shade.....as much as "what would be the best (durable) type of paint to put onto something like this?

 

Scenario:  One of my stabilizers has popped a leak so needs to be rebuilt.  When I was inspecting it (as I was attaching new hoses to it) I noticed that the underside is nearly naked of paint so thought I'd pull it off, clean it, rebuild it and then repaint it.

 

I'm guessing that an oil base would be the most durable (?) and same with a primer (?)  Any brand specific that should be considerred first?  When I painted the fenders of my tractor, I was told to go to PPG and use their stuff.  I can do that again if their brand would work well.

 

One reason I bother to ask about this is decades ago, I had my car painted.  At the time, I was a teenager.  Took it to the car wash (mistake #1) and used their pressure washer (mistake #2) and had a spot on the side of the car where the paint literally peeled off when the pressure hit it.  So it wasn't sticking very well and this will get abused so want something sticky!!! (but not to the touch!)

it called preping before painting..

Remove the rust.... remove oil and grease.. epoxy primer..  sand or scuff.. then tack rag ..oil and graese remove... then paint

 

 

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Note that I'm not going to paint the machine....  I'm only going to be working on the rear stabilizers

.

14 hours ago, HDBRbuilder said:

Bed liner isn't a bad idea, either....that way when you're climbing around on it, at least your shoes would have a better grip to what they come in contact with! 

 

Andy, you don't know how much you hit this on the head....  I do climb over it like a monkey when I'm trying to reach or fix something (or need a perch while doing something else)

 

I still have some of that red paint I used on the K510 (for the sake of keeping it low cost)...  hadn't thought about that.  

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The cylinders are ....I don't know....  six maybe eight inches in diameter (never really looked at them)

 

but being round, might  be annoying.

 

Isn't there a paint "POR" which is something like paint on rust??

 

I was once told that's the cats meow for oxidized items.  

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