meguiars swirl x and #21 sealant

slodysko911

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Just bought a PC DA and received the lake coutry pads with it. What pads should I use for each of the products????
 
Hi slodysko911

First, since this is your first post...

Welcome to Autogeek Online! :welcome:


Don't forget to swing by this thread... even though you posted your first name here, I'm compiling a list from the posts here...

Roll Call - What's your real first name?



As to your questions, the SwirlX is a light cleaner/polish, probably best results will be had using a polishing pad. If you have a cutting pad you can try that but the pad itself may leave some haze, if it does just re-polish using the same product with a less aggressive pad. (polishing).


The M21 is a synthetic sealant, you can use a soft finishing pad to apply it.

  • For the SwirlX use a Speed Setting of 5-6
  • For the M21 use the 4.0 Speed Setting
When you use a DA Polisher you want to slice up your car's panels into smaller sections and then buff out one section at a time doing what are called Section Passes. After you buff out one section, move onto a new section and overlap a little into the previous section.


Hang on for some links...

:xyxthumbs:
 
I always recommend using a Tape-Line when doing your testing as it will make it very easy for your eyes to detect changes, which usually mean improvements in the test area and gauge how effectively your pads, products, tool and techniques are working on this particular paint system.


TapeLine02.jpg




I test every paint system, (that's another way of saying vehicle because the paint or the "paint system" is on the vehicle, you're not working on the vehicle, per SE, but the paint system), if I've never worked on it before.

It's just a good "Best Practice"


Here's how to do a "Section Pass" when trying to remove swirls, scratches and other below surface paint defects.

How to do a Section Pass
[video=youtube_share;Q70g83mnTn4] - How to do a "Section Pass" with a Porter Cable 7424XP[/video]





When talking about machine polishing on discussion forums or even in detailing classes, the below questions always comes up,
  • What's a pass?
  • How many passes do I make?
  • What's a section pass?


The definition of a pass
There are two definitions of the word pass as it relates to machine polishing with any type of machine.


Single Pass
A single pass is just that. It's when you move the polisher from one side of the section you're buffing to the other side of the section you're buffing. That's a single pass.


Section Pass
A section pass is when you move the polisher back and forth, or front to back with enough single overlapping passes to cover the entire section one time. That's a section pass.

In most cases if you're removing any substantial below surface defects you're going to make 6-8 section passes to the section you’re working before you either feel comfortable you've removed the defects or you're at the end of the buffing cycle for the product you're using.


Buffing Cycle
The buffing cycle is the amount of time you are able to work the product before the abrasives have broken down, (if you’re using a product that uses diminishing abrasives), and/or the product begins to dry and you lose the lubricating features of the product. Different products have different buffing cycles depending upon the type of abrasives used in the formula and the different ingredients used to suspend the abrasives and provide lubrication.


Factors that affect the buffing cycle include,
  • Ambient temperature
  • Surface temperature
  • Size of work area
  • Type of machine
  • Type of pad material
  • Humidity
  • Wind or air flow surrounding the car
  • Amount of product used
  • Technique


Wet buffing technique
Most compounds and polishes should be used so that there is enough product on the surface to maintain a wet film while the product is being worked. The wetness of the product is lubricating the paint as the abrasives abrade the paint and cushion or buffer the abrading action so the abrasives don’t simply scour the finish leaving behind swirls and scratches.


Dry Buffing Technique - Buffing to a dry buff
There are some products on the market where the manufacture recommends buffing the product until it dries. As the product dries you’ll tend to see some dusting as the product residue becomes a powder and the paint will have a hard, dry shine to it.

Although some manufactures recommend this, it’s important to understand what’s taking place at the surface level as you buff to a dry buff. As the product dries, in essence you are losing the lubricating features of the product and as this happens friction and heat will increase. As friction and heat increases, so does the risk of micro-marring the paint or instilling swirls either by the product residue or the pad material and/or a combination of both.

While we trust that the manufacture knows their products best, when we take a close look at what it means to buff on a delicate surface like an automotive clear coat, it doesn’t make sense to run a buffing pad on top of the paint without some kind of wet film to lubricate the paint at the same time. We always recommend that you follow the manufacturer's recommendations and use your own judgment.

Everyone new to buffing wants to be told some easily identifiable sign that they can use to tell when it's time to stop buffing and it's not that simple, so here's an indicator I've always used and taught to others,

Wet film behind your path-of-travel
As you're making a single pass with the polisher, the paint behind the path of travel of the buffer should have a visible wet film on it. If the paint behind the pad is dry and shiny, you've run out of lubrication and you're dry buffing. Turn the polisher off. Wipe the residue off and inspect using a Swirl Finder Light to make sure you didn't dull or mar the paint, you usually won't cause any harm, but pay attention when your running the polisher and don't buff to a dry buff. If you do, you can quickly re-polish that section by cleaning your pad and adding a little fresh product and making a few new section passes.


UMR
Remember, in most cases the goal is UMR or Uniform Material Removal. The reason for this is so that you remove an equal amount of paint over each section and in turn over the entire car. In order to do this you need a method that you can control and duplicate and for most people following a back and forth, side-to-side pattern works because it’s easy to remember, easy to do and easy to duplicate.


How to Remove Swirls using the Porter Cable 7424XP or any D.A. Polisher


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:iagree: I just used the m21 with my DA set on 4. It will spread nice and even
 
Mike I think you scared this guy away hahahaha Bombarded him with information right off the bat.
 
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