Better results with 3" mf pad vs 6" mf pad

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jvamagic

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I wetsanded my car with 1500/2k/3k and went at it with menz fg400. I started with a MICROFIBER ORANGE CUTTING PAD 5.5" and didn't really like the results (had to go over twice or more). This using a PC 7424xp ( I have a dewalt 849 but don't quite trust myself).

http://www.amazon.com/Meguiars-DMC3-Microfiber-Cutting-Disc/dp/B005JPJNMW

I ordered 3" mf cutting pads for the smaller sections and saw a difference from the 5.5" pads. It cuts so much better/faster. Is it because of leverage etc..or because the Meguiar's pads are that much better? The 3" disc don't have much padding so I assume it builds heat quickly which cuts better??? Just trying to figure this out for future reference.

Meguiar's DMC3 3" DA Microfiber Cutting Disc

Chemical Guys - Black Optics Microfiber Orange Cutting Pad (5.5")

I finish with menz 4000 with a white pad and it comes out pretty nice if I may say so myself. I will post photos when I'm done.
 
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I have not tried CG's pads, but the combination of thinner backing and smaller pad will both contribute to additional cut.

For my style, the Meg's MF cut better than B&S (not sure if B&S makes those pads for CG though.
 
Thanks for your replies....will adjust accordingly.
 
jvamagic said:
I ordered 3" mf cutting pads for the smaller sections and saw a difference from the 5.5" pads. It cuts so much better/faster. Is it because of leverage etc..or because the Meguiar's pads are that much better? The 3" disc don't have much padding so I assume it builds heat quickly which cuts better??? Just trying to figure this out for future reference.
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As a previous poster noted, assuming the power output of the machine is fixed (that you are using the same speed), that power is being distributed over a smaller area (7.1 square inches vs. 23.8) so you are potentially doing ~3 times the work to your smaller area. It's just math. The downside of course is you are only covering 1/3 the area so it will take you longer to get done.
 
I just stick with Meguiars pads, after all they came out with them for automotive use first.
 
Setec Astronomy said:
As a previous poster noted, assuming the power output of the machine is fixed (that you are using the same speed), that power is being distributed over a smaller area (7.1 square inches vs. 23.8) so you are potentially doing ~3 times the work to your smaller area. It's just math. The downside of course is you are only covering 1/3 the area so it will take you longer to get done.
Click to expand...

So if I purchase the 6" Meguiars cutting disc's it will not be much different than when using the 6" chemical guys cutting pad? Have another DIY project and it's my SUV.

:cry:
 
jvamagic said:
So if I purchase the 6" Meguiars cutting disc's it will not be much different than when using the 6" chemical guys cutting pad? Have another DIY project and it's my SUV.
Click to expand...

I really can't speak to the CG pad, but it's just physics that you're going to get better correction with a smaller pad. Why don't you buy the 5" Meg's discs? Or is your backing plate too big?
 
Setec Astronomy said:
I really can't speak to the CG pad, but it's just physics that you're going to get better correction with a smaller pad. Why don't you buy the 5" Meg's discs? Or is your backing plate too big?
Click to expand...

I have a 5" backing plate. Sounds like I should go with a 5" Meg's disc.
 
jvamagic said:
I wetsanded my car with 1500/2k/3k and went at it with menz fg400. I started with a MICROFIBER ORANGE CUTTING PAD 5.5" and didn't really like the results (had to go over twice or more). This using a PC 7424xp ( I have a dewalt 849 but don't quite trust myself).

http://www.amazon.com/Meguiars-DMC3-Microfiber-Cutting-Disc/dp/B005JPJNMW

I ordered 3" mf cutting pads for the smaller sections and saw a difference from the 5.5" pads. It cuts so much better/faster. Is it because of leverage etc..or because the Meguiar's pads are that much better? The 3" disc don't have much padding so I assume it builds heat quickly which cuts better??? Just trying to figure this out for future reference.

Meguiar's DMC3 3" DA Microfiber Cutting Disc

Chemical Guys - Black Optics Microfiber Orange Cutting Pad (5.5")

I finish with menz 4000 with a white pad and it comes out pretty nice if I may say so myself. I will post photos when I'm done.
Click to expand...

Not trying to be rude, but if you have the balls to wet sand your car, then you can wrangle that Dewalt.
If I was in your shoes and had only those 2 machines. I'd buff with a black tuffbuff wool or scholls spider pad and polish with the PC.
On the Dewalt, concentrate on keeping your pad flat, do your passes on speed 600-800 and you'll be amazed why you didn't grab it sooner!
 
I have used the CG microfiber discs and tried the meguires and never looked back! The difference for me was night and day.
 
fly07sti said:
Not trying to be rude, but if you have the balls to wet sand your car, then you can wrangle that Dewalt.
If I was in your shoes and had only those 2 machines. I'd buff with a black tuffbuff wool or scholls spider pad and polish with the PC.
On the Dewalt, concentrate on keeping your pad flat, do your passes on speed 600-800 and you'll be amazed why you didn't grab it sooner!
Click to expand...

No offense taken. I see your point. I was going to give it a shot with the Dewalt but being that I have been waiting 15 years to get my Mustang back together after being stolen and completely stripped (minus the power train) I didn't want to risk doing some damage.
If I ever have to wet-sand/buffing, I will give the Dewalt a chance.
 
kwwhite1 said:
I have used the CG microfiber discs and tried the meguires and never looked back! The difference for me was night and day.
Click to expand...

Did you wet-sand and buff? Which Meg's compound did you use? Maybe the Menz 400 was not the way to go though it's a great product for correcting other defects.
 
I am actually restoring a 92 fox body that I completely sanded with 1500, 3000, and 5000. I used meguiars MF correction compound with both pads. The meguiars pads cut through so easily compared to the other MF pads. Also both pads were being used on a Rupes lhr15.
 
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