5" and 6" Backing Plates on 6.5" pads (Pictures to show safety margin)

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Originally Posted by Mike.Phillips@Autogeek

And just to note, showing the 5" backing plate on the 6.5" pads wasn't a recommendation, it was to give people an idea of what it looked like and that it's undersized for that application.

Sorry if there was any confusion on my part, basically I had the two new LC pads in my office and so that's that I used for the picture.



:)

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Then you should change Autogeek's page description on the 6.5 CCS pads. It says to use a 5" backing plate. That's where the confusion is coming from.:xyxthumbs:

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Originally Posted by loudog2

Then you should change Autogeek's page description on the 6.5 CCS pads. It says to use a 5" backing plate. That's where the confusion is coming from.:xyxthumbs:

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Yeah, and honestly, they don't work unless I am doing something wrong.

i originally had 6.5" pads and got a 5" HD backer. is that ok?

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Originally Posted by loudog2

Then you should change Autogeek's page description on the 6.5 CCS pads. It says to use a 5" backing plate. That's where the confusion is coming from.:xyxthumbs:

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Originally Posted by D_Nyholm

Yeah, and honestly, they don't work unless I am doing something wrong.

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Thanks for bringing this to our attention, I'll check it out this morning.


:)

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Originally Posted by D_Nyholm

When i use a 6.5" pad with a 5" backing plate on a PC, I can't go above speed 4 or so or the edge of the pad not attached to the backing plate starts to lift and flop all over the place. I am using the LC 6.5" regular thickness pads and it is completely unuseable and unstable with the 5" backing plate.

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Are the Lake Country 6.5" pads that much different than the Meguiars 6.5" pads? I have used the Meguiars 6.5" pads with a 5" backing plate for several years on my G100 and I have never had any problems with the pads and I have used them up to speed 6. Is this just a problem with the Lake Country pads or am I not understanding something? :confused:

Getting ready to go into a meeting but this afternoon will do some testing and take some videos. If you want to see something related to this topic let me know.

I did just test the 5" and the 6" backing plates on new 6.5" CCS Super Soft Gold Jeweling Foam Pad using the Griot's Polisher at all speed ranges and had no problems with either backing plate.

With the smaller 5" backing plate the foam did lift up around the backing plate and flutter at the higher speeds but I wouldn't call this a problem. IF anything it's a safety margin in case you get the back of the backing plate too close to something like a rear view mirror.

I will say that the 6" backing plate does engage the face of a 6.5" buffing pad better against the surface of paint and that is a benefit especially if you have a new generation polisher able to effectively rotate the pad under pressure.

Off to a meeting...


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Originally Posted by MisterShark

Mike,
It's not so much that I was wondering about this because of your demo above but specifically because all of the AG 7424XP kits come with the 6.5" pads to accompany the 5" backing plate.

I'm planning to build my 7424 arsenal ala-carte rather than by purchasing a kit, so I can go with either size. I just don't wanna make the wrong choice and find out after the fact that the PC doesn't have the muscle to effectively turn the 6.5" pads except at the lower speeds.

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I'm also curious about what you said because I bought a kit with a 7424 XP, 6.5" pads and 5" backing plate...so it's not a recommanded "setup" ?

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Originally Posted by Mike.Phillips@Autogeek

With the smaller 5" backing plate the foam did lift up around the backing plate and flutter at the higher speeds but I wouldn't call this a problem. IF anything it's a safety margin in case you get the back of the backing plate too close to something like a rear view mirror.

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I always recommend the 5" backing plate with the 6.5" pads due to safety reasons. Even with all my experience I still use a 5" backing plate when working with 6.5" pads. I like knowing I have a little room for error when working in tight spots or around mirrors. I have not found any difference in my work between using the 6" and 5" but I do feel safer with the 5". Just my $.02 :buffing:

^^ So it's a "idiot proof" setup. :laughing:
Perfect for all the beginners, like me. :)

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Originally Posted by TheGLL

^^ So it's a "idiot proof" setup. :laughing:
Perfect for all the beginners, like me. :)

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Exactly! If you take a look at the stock pad that comes n the box with the PC-7424XP, the 5 inch plate, 6.5 inch pad combo most closely resembles the stock setup for maximum safety and that is why most of the Porter Cable kits that we have on Autogeek.net are put together this way.

Once you are comfortable with the machine and confident in your ability, feel free to try other plate/pad combos.