PC (7424) Speeds for different applications!

msanta

msanta

Squeaky Wheels Get Grease
I've had my PC for over two months now and have only used it with one speed for almost every application(between 3 & 4), from a polish to a swirl remover or a liquid wax. What are your speed recommendations when using:
a polisher(e.g. S100, Meguiars)
a swirl remover(e.g. PI III MG)
a liquid wax (Meguiar's yellow carnauba wax)

I've only used my PC to apply the chemicals, not to take them off. I use the MF towels, the PC came with terry bonnets, I don't know if they are good for taking off the polishes. The PC saves me a lot of time and elbow grease and definitely spreads the chemical evenly, but I am afraid of increasing the speed for fear of burining the paint or casing more swirl marks! What are your thoughts on this...:bigups
 
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The 4 to 5 range seems to work pretty good for me.
Whether applying polish or sealant, I don't seem to ever change the setting.
That's with Meg's #9 Swirl Remover 2.0
Klasse AIO
4 Star UPP

The extra vibration at 6 was more of an aggravation than a benefit to me.

I don't think you are likely to burn paint with the PC.
IMO, the only way you will cause swirls would be by using a product that was too abrasive for the job at hand. Some compounds are designed to work with a rotary and the PC doesn't break them down properly. I have no idea where the PI III MG falls.

Charles
 
I've had my PC on 5 w/ yellow pad using pressure in one spot and nothing happened. The PC is random orbital , meaning it doesn't turn in the same circle each time. So you can't generate alot of heat which damages or "burns" paint . The great thing about a porter cable RO is its great for beginners because you can really make any mistakes or do damage with it.

For swirl removers and polishes I set it on 4. If it alot of scratches I'll go to 5 with some pressure.

** Rule of Thumb ** Always start with the least aggresive polish and pads first . You don't want to take off more than you need to. You don't want to use more products than you need to.

For wax or final app. I do it by hand on/off.
 
When using a swirl mark remover I generally set the PC to at least 4 sometimes 5. When using a polish I set the PC to 5.5 (with SSR1 it does wonders at that speed). I generally wax by hand since no pressure is really needed, and I also remove by hand since that's the easy part. And as Hawiianelement noted, I wouldn't worry too much about burning the paint since the PC is a random orbital. I've used a yellow and even black cutting pads without ever harming paint (though i saw no real difference in results either), the PC simply doesn't generate enough heat (unless you angle it and sit on it in one place for a couple minutes).
 
I've used my PC on 6 a few times with 3M PI-III MG and DACP and there hasn't been a problem yet. There is quite a bit of vibration at that speed but it sure breaks down the polish.
 
Generally speaking, I use the following PC speeds:

- 4.5-5.5 for paint correction (swirls, scratches, oxidation)
- 4 for final polishing
- 3 for applying sealants

For the first two items, I spread the product at speed 2 for one pass before turning up the speed to finish "working" the product.
 
zesty-man said:
is there a reason why you go sooooooo slow for sealents road runner?
Click to expand...
Sealants don't need to be "worked" into the surface. They only need to be gently "wiped" on. In fact, I will often just apply sealants by hand.
 
For polishes I usually set it in the 4 to 5.5 range. I also agree that 6 tends to have a little too much vibration. It also depends on the product. This is something that takes some experimenting to see what works for you. It is very very hard to damage paint w/ the PC, just use common sense w/ it keep it flat and you will be ok.
 
I've had great success with the following:
*Using Megs #80 at 4 with a polishing pad and then if warranted I'll put it on 3.5 with a light cut pad to remove some scratches on the more problem areas.
*For putting on a glaze layer like VM I'll put it on 4.5-5
*For putting on a liquid wax such as NXT I'll use 5 and have great results.
*I remove most of my products using a finishing pad or a MF bonnet and for the polishes I have it at about 5-5.5 and for the wax removal if I don't do it by hand I'll turn it up to 6. I personally haven't had any issues with alot of vibration. I do have the 6" counterweight in my 7336 though.
 
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