Meguiars micro fiber correction question

[smkdya]

What speed should i set my porter cable 7424xp on when correcting the paint ? What speed should i use when polishing the paint ? I find when using speed 4 when applying 15 lb pressure the rotation may be to slow . On speed setting 5 I get much better rotation when applying 15lb pressure . Thanks for your help .

 

[RevitalizeAutoSpa]

I usually use between 4.5 and 5 on the PC when using compound and cutting discs, and between 3.5 and 4.5 when using a finer polish and the polishing discs.

 

[Wurmmm]

Just curious, would there be anything wrong with using it on speed 6? I used the 5" megs cutting microfibers the other day on my wife's Suburban and speed 6 seemed to work without too much vibration or fatigue. I've only tried it a couple of times, though, and only got the hood done so far...

 

[Rsurfer]

I usually use between 4.5 and 5 on the PC when using compound and cutting discs, and between 3.5 and 4.5 when using a finer polish and the polishing discs.

Really, my PC at 3.5 won't rotate at all with hardly any pressure. I use only one speed with my pc and that's 6.

 

[Setec Astronomy]

I'm not sure that 15 lbs is what is recommended for the MF pads. At any rate they have a recommended OPM rate which will be a different setting depending on what machine you have:

Meguiars Microfiber DA Correction System - YouTube

http://www.autogeekonline.net/forum/products-guides/74695-speed-settings-same-all-polishers.html

Cutting pad speed target is 4800 OPM (about 14:00 in the video) and finishing pad is 3800 OPM (about 18:10 in the vid).

 

[WRAPT C5Z06]

5-6

The other speeds are relatively worthless for correction.

 

[RevitalizeAutoSpa]

Really, my PC at 3.5 won't rotate at all with hardly any pressure. I use only one speed with my pc and that's 6.

Got the XP? Mine spins fine.

And I have poor results with MF at speed 6. The pad gets matted down and too hot, too quickly.

 

[WRAPT C5Z06]

Got the XP? Mine spins fine.

3.5? LOL....no chance

 

[expdetailing]

Got the XP? Mine spins fine.

And I have poor results with MF at speed 6. The pad gets matted down and too hot, too quickly.

I noticed that too. My thought was to clean the pad after each 2x2 section, and when I do, I can run at speeed 6 all day on the pc. Really, I'm not interested in cutting with a PC unless it's speed 6 with a microfiber.

 

[Mike PhillipsMike Phillips is verified member.]

One of the reasons they don't recommend running any polisher full speed is full speed with,

• Time
• Pressure
• The violent oscillating/rotating action

Tends to push adhesive technology to its limit and you'll see the pad de-laminate at some point. Same thing happens to foam pads when pushed to the limit.


I'd say most people I've talked to and worked with don't normally take into consideration the violent action a dual action polisher produces at the pad and backing plate level.

It would be one thing to turn a Porter Cable 7424XP, Meguiar's G110v2 or Griot's dual action polisher and buff out a section about 16" squarish and then turn the polisher off and call it a day.

But that's not reality and reality is guys run these polishers non-stop till a car is completely buffed out and that's a lot of punishing violent action being exerted to a thin film of adhesive holding the pad to the velcro.

Add to it the chemicals that will seep through the pad till they penetrated through the pad and hit the backing plate and add all of these things,

• Time
• Pressure
• Violent oscillating/rotating action
• Chemicals

And why is anyone surprised a buffing pad doesn't last forever?

 

[Mike PhillipsMike Phillips is verified member.]

What speed should i set my porter cable 7424xp on when correcting the paint ?

Pad rotation is a must. Period.

I'm always amused when I read the posts of some guru that says it's enough for a pad to simply vibrate and jiggle.

So no matter what tool you're using, mark your backing plate so your eyes can EASILY see that the pad is rotating.

Mark your backing plate to make it easy to see if it's rotating or not...


Place a mark on your backing plate like this,

If you want to remove swirls and scratches the pad needs to rotate on the 5-6 speed setting when firm pressure is applied to the head of the polisher.

To make it easier for your eyes to detect if the pad is truly rotating or simply vibrating or jiggling, place a black mark using a Sharpie Permanent Marker onto the back of the backing plate.

If you have a black backing plate like the Meguiar's W68DA Backing Plate or the Edge DA Backing Plate, use a light fingernail polish or get a small bottle of white paint sold for painting car models.

In this picture we marked both the back of a cutting pad and the backing plate.

What speed should i use when polishing the paint ?

On the Porter Cable you're going to be on the 5 to 6 setting. You've read some banter in your thread about being on the 6 setting and if that's what it takes to maintain pad rotation then use it.

But Megs microfiber pads are THINNER than most foam buffing pads and this means they rotate better and the point being is Meguiar's doesn't want you to overheat the pads and cause them to fail, so try the 5.0 or 5.5 setting and in needed to maintain pad rotation then use the 6.0 setting.

I find when using speed 4 when applying 15 lb pressure the rotation may be to slow . On speed setting 5 I get much better rotation when applying 15lb pressure . Thanks for your help.

15 pounds of downward pressure is something I started teaching people back in around 2004.

Back in the early days of using Porter Cables to polish paint Meguiar's was the ONLY company out with a video telling people how to use these tools, it was called

Power Polishing

It stared my old manager Mike Pennington. In this video he's buffing on a Mustang hood and the Voice Over says to use the weight of the machine. That's a very safe route to take but it will also take you a million years to remove swirls and scratches out of a modern basecoat/clearcoat finish.

So I went against the grain and started telling people what it actually takes to remove swirls and scratches, here's a pictures from one of my early articles on MOL

And you can find all the pictures and the text of my original article on this topic here,

Downward Pressure....What is "Moderate"?


The original article is still on MOL.


Back to the point... the 15 pounds of downward pressure is a good rule of thumb when buffing with foam pads on dual action polishers like the PC/Meguiar's/Griot's polishers.

It does not apply when using the Meguiar's Microfiber DA Correction System.


I'd highly recommend watching both of these videos....

Here's the first one.....

Meguiar's DA Microfiber Correction System


Mike with Jason and Mike from Meguiars, introducing the new DA Microfiber Correction System.

[video=youtube_share;WhJYFLgIjhE"]YouTube - Autogeek.net - New Meguiars Microfiber...[/video]​

__________________



Here's the follow-up with the new products and pads...


New Video - Meguiar's DA Microfiber Correction System

New Meguiar's MF Training Video​

[video=youtube_share;AawmvM5Jo24"]Video showing before and after[/video]​

Hope the above helps....

 

[The Guz]

I recommend these two articles.

Using Meguiar's D/A Microfiber Correction System

What NOT to do with microfiber pads

 

[Tato]

I use my Meg MF discs on the Rupes at speed 4 (5" plate, 5.5" disc), firm pressure, and I get correction on hard paint in 3-4 passes. Finish is not the strong side of using MF, so I'll follow up with a foam pad every time I use MF, even if it's looking good to the 'naked eye'. The micro-marring MF may leave goes away really easy.

Using higher speeds associated with too much pressure and extended polishing time with Meg's MF will make them really hot, melt the velcro and / or the backing plate velcro part.

... don't need to ask how I know, and I've learned the hard way to use MF a bit slower than I'm willing to use. They just work!

Hope that helps,

Kind Regards.