Buying DA Sander or Orbital Sander

[davbell22602]

I'm going to suggest leaving the angle grinder in your tool chest for any of the body work or painting unless you need to to cut out some panels that have cancer!

Ok, The angle grinder is out of the picture. I'll use the orbital sander to take the 2nd layer of paint off.

 

[crazy4offroad]

The angle grinder is for cutting steel, or grinding excess steel away. If you use it on your body panels it will go straight to the metal and leave heavy grooves in it that will take forever to fix. The DA will go through the paint really quick too but wont be so hard on the steel. Which is why I suggested the orbital just for cutting the top layer of paint off. Aluminum oxide paper you can use wet or dry, emery cloth is used more for polishing things than paint removal.

 

[davbell22602]

The angle grinder is for cutting steel, or grinding excess steel away. If you use it on your body panels it will go straight to the metal and leave heavy grooves in it that will take forever to fix. The DA will go through the paint really quick too but wont be so hard on the steel. Which is why I suggested the orbital just for cutting the top layer of paint off. Aluminum oxide paper you can use wet or dry, emery cloth is used more for polishing things than paint removal.

OK, Can I use a heavier grit aluminum oxide paper if needed? Meanwhile 120grit aluminum oxide paper and orbital sander.

 

[crazy4offroad]

Use what you want, just keep a close eye on how deep it's cutting. 150 is pretty standard to start with, and the aluminum oxide has a rough feel to it compared to regular sand paper.

 

[davbell22602]

It this the right sand paper I need?

http://www.harborfreight.com/pack-of-5-5-inch-120-grit-psa-sanding-discs-43987.html

 

[crazy4offroad]

I frown on Harbor Freight anything, I doubt it will be worth a damn but if you wanna support China more power to ya. That looks more like regular paper to me. This is what I usually see, red paper...
http://www.arizonatools.com/aluminu...&utm_medium=organic&utm_campaign=productfeeds
Honestly though, I really doubt that HF paper will hold up for 3 minutes.

 

[davbell22602]

OK, Thanks guys

 

[davbell22602]

What about a heat gun paint stripper?

 

[Swims350]

why use a heat gun? paint stripper works on it's own, wouldn't mix it with heat, it'll dry out faster.

I've used citri-strip or citrus strip from wal-mart, stuff works great. I never had any luck with the aircraft stripper crap.

You can use as rough as you need to remove paint, they make 80 and 40 or 36 grit, but it's gonna leave scratches and take putty, filler or alot of coats or high build filler/primer to get them out.

 

[davbell22602]

Someone offered one of these for $75/BO.

http://www.homier.com/review/product/list/id/581/

 

[crazy4offroad]

It's not as big as the picture leads you to believe. I have a 33 gallon horizontal I can lift by myself. On top of that, there's gotta be a reason they only want $75.

 

[davbell22602]

It's not as big as the picture leads you to believe. I have a 33 gallon horizontal I can lift by myself. On top of that, there's gotta be a reason they only want $75.

Will it work with a DA sander though?

 

[crazy4offroad]

At only 6 CFM @ 90psi, and a DA using 4-8 CFM @ 90psi, I dont think you'll get much runtime until you'll have to wait for the 4.5hp pump to build it back up.

 

[davbell22602]

It has a 25 gallon tank. There's that much difference.

 

[crazy4offroad]

I would be looking at compressors that can put out better than 10 CFM, you'll be looking at spending more than $400-$500 for a quality unit. If the ratings say 6 CFM @90psi, 9 CFM at 40psi, it doesn't matter how much the tank holds, you'll get 2-3 minutes runtime, then the motor runs for 2-3 minutes, you'll want to get back to sanding quicker, the tank empties quicker, pump kicks back on sooner, etc. In my opinion a smaller compressor like that is less energy efficient than a bigger one rated at higher CFM. The smaller one will be running 5x more than the bigger one, and building back up much slower. Even my 240v 6hp 33 gallon seems like it runs a lot to me, rated at 12 CFM @ 90psi. But at least I can get about 8 or 10 minutes continuous runtime before the compressor kicks on, and even when it does I can still keep going without losing too much pressure to hurt the performance of the tool.