Re: Griots Random vs 7424xp
Okay, just got out of the garage and did a little testing, did this for you guys just as much as myself as I'm just as curious as the rest of you and I must say I was a little surprised.
First let me say that all three of these new generation DA Polishers all have more power than the first generation polishers which basically are the PC 7424 and the 7336
The biggest difference with the new generation dual action polishers is with their increase in power they are better able to keep a pad rotating under pressure and this is key if you're trying to remove defects because,
defects are removed best when the pad is rotating over the surface, not just vibrating against it.
Makes sense?
So with that said, keep in mind not everyone getting into machine polishing is trying to remove each and every little swirl and scratch, some people just want to use a tool like these to take the work out of applying a wax and they all work great for this as these dual action polishers do such a good job as compared to you hand.
On to the test,
Anytime you do any testing it's vital that you reduce and remove as many variables as possible so you can focus the testing to a specific features or attributes.
For this test I used one of the largest foam pad on the market designed for use with a DA Polisher and that's the Meguiar's
W-8207 Yellow Foam Polishing Pad. I used the Meguiar's new
W67DA one piece backing plate, this isn't the one that comes with the tool but is sold on it's own and a very nice upgrade.
I used the 5" Lake Country Backing Plate on the 7424XP and the Griot's backing plate that comes with the Griot's polisher.
Backing plates can make a huge difference in the performance of how a pad works but since they were all pretty much the same diameter, there's not too much of a variable here to make a huge difference in the
noticeable performance of the tools.
I wiped clean and then clayed the hood of Harvey and wanted to test out the Griot's Paint Sealant, so I figured I would use the Meguiar's UC with each of the polishers mostly because I already had an open bottle in the garage and it was handy. For a test like this since there really aren't any swirls in the hood of Harvey it didn't really matter which compound or paint cleaner I used as long as it was the same product for all three tests.
All pads were new and dry. I tested all polishers at all speed settings. For the lower speed settings I tested with just the weight of the machine and under light pressure. For the higher settings, I tested with light pressure and firm pressure. You don't let a DA Polisher run at high speed without some kind of pressure because it's too much speed to leave
uncontrolled.
Keeping in mind that I only buffed out the horizontal portions of the hood. Here's what I saw and felt and this isn't positioning one as better than the other, nor is it a recommendation, it's just my observations.
Out of the 3 polishers tested, the
G110, the
PC 7424XP and the
Griot's ROP
the Griot's easily had the most power and speed with light pressure
and with firm pressure, followed by the PC 7424XP, followed by the G110
I'll leave it at that for now because buffing out just the flat portions of a hood is not a full-on test, buffing out a few cars,
completely buffing them out, now that's a better test.