Possibly dumb pad backing plate question

8

88911coupe

New member
OK...I have searched and read a zillion threads but can't seem to get some clear. I have a PC 7424 and am looking at the Lake County pads. My problem is how do I know which backing plate works with them? Do they all have "velcro" type connections or something else? Also, do the backing plate bolts have a standard thread pitch?
 
Basically all of the backing plates will have the "hook an loop" Megs Microfiber backing plates are alittle different they are not as "tight" gripping.

Hmm 88 911.... SC, Turbo, Carrera,?
 
88911coupe said:
OK...I have searched and read a zillion threads but can't seem to get some clear. I have a PC 7424 and am looking at the Lake County pads. My problem is how do I know which backing plate works with them? Do they all have "velcro" type connections or something else? Also, do the backing plate bolts have a standard thread pitch?
Click to expand...
Make sure you get a DA backing plate, not one for a rotory. Also match the backing plate to the pad size. A 5" backing plate for 5.5" pads or a 3.5" backing plate for 4" pads. You always want your backing plate just a little smaller than the pad size. 5.5" pads work great with a PC/XP.
 
88911coupe said:
OK...I have searched and read a zillion threads but can't seem to get some clear. I have a PC 7424 and am looking at the Lake County pads. My problem is how do I know which backing plate works with them? Do they all have "velcro" type connections or something else? Also, do the backing plate bolts have a standard thread pitch?
Click to expand...

NOT a dumb question at all!!!!!!

The backing plate is the piece that mounts the pad to the machine.

In general there are two styles of backing plates- hook & loop (Velcro brand) and center mounting.

Hook & Loop- These are the standard type of backing plate. They attach to your machines spindle. The face of the backing plate has some type of hook (or loop) attachment. For the most part these are very general and interchangeable.

Center Mounting- These backing plates are used with double sided pads that have a backing plate built into the pad. They are either a quick-connect style or a screw on style. These only work with specific pads.


As far as Hook & Loop style, you have two basic types: Rotary and DA. Rotary backing plates feature a female attachment that threads onto the rotaries spindle. DA backing plates feature a small stud that threads into the DA polisher.


As far as which plate to use with what pads, make sure you get the appropriate style (rotary or DA). Note that all popular machines (the ones sold at Autopia-CarCare) have the same size mounting options. You can use any of our DA backing plates with a Porter Cable 7424 XP, Griot's Polisher, or Meguiar's G110v2. The same goes for the rotary backing plates, they will fit Makita 9227c, Hitachi 18SVP, Flex rotaries, DeWalt rotaries and more.

The next step is to select the correct size for your pads. In general you want a lip around the outside of the pad (your backing plate should be smaller than the pad).

A 3 inch backing plate would be ideal for 3.5-4.5 inch pads
A 5 inch backing plate would be ideal for 5.5 inch or 6.5 inch pads (the latter having more safety margin but being a little less efficient.
A 6 inch backing plate works with 6.5 inch-7.5 inch pads
A 7 inch backing plate works with 8.5 inch pads.
 
Todd Helme said:
NOT a dumb question at all!!!!!!

The backing plate is the piece that mounts the pad to the machine.

In general there are two styles of backing plates- hook & loop (Velcro brand) and center mounting.

Hook & Loop- These are the standard type of backing plate. They attach to your machines spindle. The face of the backing plate has some type of hook (or loop) attachment. For the most part these are very general and interchangeable.

Center Mounting- These backing plates are used with double sided pads that have a backing plate built into the pad. They are either a quick-connect style or a screw on style. These only work with specific pads.


As far as Hook & Loop style, you have two basic types: Rotary and DA. Rotary backing plates feature a female attachment that threads onto the rotaries spindle. DA backing plates feature a small stud that threads into the DA polisher.


As far as which plate to use with what pads, make sure you get the appropriate style (rotary or DA). Note that all popular machines (the ones sold at Autopia-CarCare) have the same size mounting options. You can use any of our DA backing plates with a Porter Cable 7424 XP, Griot's Polisher, or Meguiar's G110v2. The same goes for the rotary backing plates, they will fit Makita 9227c, Hitachi 18SVP, Flex rotaries, DeWalt rotaries and more.

The next step is to select the correct size for your pads. In general you want a lip around the outside of the pad (your backing plate should be smaller than the pad).

A 3 inch backing plate would be ideal for 3.5-4.5 inch pads
A 5 inch backing plate would be ideal for 5.5 inch or 6.5 inch pads (the latter having more safety margin but being a little less efficient.
A 6 inch backing plate works with 6.5 inch-7.5 inch pads
A 7 inch backing plate works with 8.5 inch pads.
Click to expand...

Spoken he has, the Jedi Master, yes
(yoda voice)
 
Thanks for the clarification...have the following on the way from autopia:
Lake County 6 pak 5.5"CCS pads, did not get the extreme cut since paints in pretty good shape, I got an assortment of the other 2 whites and the 3 "softest" IIRC
5" DA hook and loop backing plate
I have the original whitish foam pad that came with the PC...I was messing around with that using some 3M Swirl Mark remover...is is worth keeping the original pad for anything?
 
88911coupe said:
Thanks for the clarification...have the following on the way from autopia:
Lake County 6 pak 5.5"CCS pads, did not get the extreme cut since paints in pretty good shape, I got an assortment of the other 2 whites and the 3 "softest" IIRC
5" DA hook and loop backing plate
I have the original whitish foam pad that came with the PC...I was messing around with that using some 3M Swirl Mark remover...is is worth keeping the original pad for anything?
Click to expand...

Yes. It is the same white foam found on Lake Country pads. It is a little tall for serious use, but it still works good for some light polishing jobs.
 
You must log in or register to reply here.
Back
Top