I am looking to pick up a 3" unit next month and was planning on getting the GG 3" unit, however I have been reading that it is pretty slow working and requires a lot of pressure to make it work correctly.
The Griot's Garage 3" Mini Polisher is nice because of it's size. It is the small size that makes it convenient and useful for working tight areas and thin panels.
I use this tool mostly for machine wetsanding and machine applying waxes.
Sanding
With a 3" sanding disc you can SAFELY,
1. Sand thin panels: Sand right next to an edge because the tool is easy to control --> by this I mean move next to an edge without sanding over the edge. You can't do this with 5" and 6" sanders.
2. Sand into tight areas.
3. Learn how to machine sand. If you're new to machine sanding it's easier to get the hang of it with a small sander than a larger sander.
Machine wax
The Rupes 4" white finishing pad fits the GG 3" polisher and the small 4" Rupes pad is soft so it compresses easy and this means you can squish it into most wax jars to get wax instead of removing the paste wax out of the jar or using a knife/spatula/PC Wrench to get the wax out of the jar and onto the pad. (Of course I'm talking about paste wax use as with a liquid you could just squirt some on the paint or on the pad).
I almost always apply any liquid or paste wax or sealant by machine. The ONLY time I apply anything by hand is if I HAVE to. (That's just me though...)
How does the Rupes compare in these situations, and factoring in price is the Rupes really worth the extra $200?
Technique is important with both tools. That is in order to maintain pad rotation you have to pay attention to what you're doing. Mark your backing plates with a permanent marker like I show in my article here and then hold the body of the tool so the pad is flat to the surface.
I have used both tools a lot. I have always used either one or the other so I have not had them in use at the same time which is when you would compare them. That is keeping as many
controls in place as possible so the only
variable is the tool itself.
I have a GG3 and it's only as good a speed 6. Seems like it doesn't do anything on any of the lower settings.
It's only good for correction work on the 6 setting.
For machine sanding you can go as low as the 2 setting as long as you see the pad rotating.
For machine waxing the 4-5 setting is fine, you don't need to be on the 6 setting to spread out a thin coat of a finishing wax or sealant.
They only time I use a lower speed is when I'm applying a wax with it.
Agree... :iagree:
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