rhillstr
Recovering Postaholic
Okay so per Porter-Cable via Aaron (The Edge) you are not to Buff/Compound but you can (per instruction manual via Kee) clean, polish, and wax. Great...
What in the world happened to my backing plate?
- Thread starter keeotee
- Start date
freedre,
I was not insulted! I also didn't mean to offend you! That was not my intention, but when I read your reply it sounded like you had a maintance tip-- I was looking for that. Possible opening the case and adding oil to the bearing? Any way I hope my PC burns up in two weeks so I can get it replaced for free since it is under warranty. If they don't intend it to be a detailing machine then don't put "sander/polisher" on the label. End of story. If porter cable is trying to tell me that putting a 80 grit sand paper on it and sanding oak or even pine is easier on it then say appling DACP and rubbing it out, I say B.S. Do you all suppose that if this was a wood working forum that PC would be telling us that the 7424 was built for polishing vehicles not wood!!!!!!!!!!!!!!
I was not insulted! I also didn't mean to offend you! That was not my intention, but when I read your reply it sounded like you had a maintance tip-- I was looking for that. Possible opening the case and adding oil to the bearing? Any way I hope my PC burns up in two weeks so I can get it replaced for free since it is under warranty. If they don't intend it to be a detailing machine then don't put "sander/polisher" on the label. End of story. If porter cable is trying to tell me that putting a 80 grit sand paper on it and sanding oak or even pine is easier on it then say appling DACP and rubbing it out, I say B.S. Do you all suppose that if this was a wood working forum that PC would be telling us that the 7424 was built for polishing vehicles not wood!!!!!!!!!!!!!!
edschwab1
New member
rhillstr said:
What is the difference between cleaning and buffing/compunding? As meguiars and other companies call their compounds cleaners.
I a few backing plates which look like Keeotee's. My backing plates ended up like this from hours and hours (6-8hrs) of heavy use (lots of pressure) at speed 6. I now have the PC 6" 6-hole backing plate, hopefully this works. Cause, heat from machine (IMO, heat is a normal by product of metal parts rubbing together), high ambient temp, one time using large foam pads and the motion of the PC. IMO,once the PC and foam pad warm up, compounds and polish break down quicker.
Are rotary hook and loop backing plates made differently than the backing plates made for DA type machines?
As to other PC like machines, check out the makita, Dewalt or Bosch make a similar product.
Eric
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rhillstr, please read my post again. I only said the PC was not designed to buff in COMPOUND. What that means is that the machine comes with a polishing foam pad for applying wax or polish to create a shine, not to do corrective paint repairs. You do not need speeds of 5-6 to apply wax or polish or glaze. The question of larger pads is answered right on your counter weight where it clearly states "Use only with 6'' pad" . You state the PC is called a poisher and that is exactly what it is, not a BUFFER. If you want to do paint restoration I stongly suggest learning the rotary.
keeotee
Detailing Stare
You make a good point
I think you've made a good point - polisher and not a buffer. So I was missing something there afterall.
But since you sell the Edge DA pads, which go from heavy cut to ultrafine, what machine should we be usiing then. Your website states that these pads are not intended for use with high-speed buffers use only. And heavy cutting pads would be for corrective use. So I'm just wondering what machine we should use then if not the porter cable? Are other brands made for use with paint and the porter cable just somehow became the more popular one that people have come to use?
I know I'm going to stay away from the setting of 6 regardless from now on.
And I'm no expert by a long shot, so if I screwed up using it incorrectly, then that is my fault and certainly not Porter Cable's or anyone else's for that matter.
But I sure do want to know and understand better how to make the next one last a whole lot longer.
I sure didn't mean to start any kind of bashing porter cable thread. I was simply at a loss as to what happened. I suspected my buffer went bad on me - I couldn't think of anyway the backing plate went bad, so I just wanted to know.
I think you've made a good point - polisher and not a buffer. So I was missing something there afterall.
But since you sell the Edge DA pads, which go from heavy cut to ultrafine, what machine should we be usiing then. Your website states that these pads are not intended for use with high-speed buffers use only. And heavy cutting pads would be for corrective use. So I'm just wondering what machine we should use then if not the porter cable? Are other brands made for use with paint and the porter cable just somehow became the more popular one that people have come to use?
I know I'm going to stay away from the setting of 6 regardless from now on.
And I'm no expert by a long shot, so if I screwed up using it incorrectly, then that is my fault and certainly not Porter Cable's or anyone else's for that matter.
But I sure do want to know and understand better how to make the next one last a whole lot longer.
I sure didn't mean to start any kind of bashing porter cable thread. I was simply at a loss as to what happened. I suspected my buffer went bad on me - I couldn't think of anyway the backing plate went bad, so I just wanted to know.
rhillstr
Recovering Postaholic
The Edge said:
You seem a little on edge in your reply. I have not accused you of anything nor implied you are inaccurate in your info. I merely pointed out that having talked with the PC engineers you may have more insight into the PC issue. I come in peace...
What I meant to bring to light is the old terminology issue. What exactly is the definition of polish. Sure somebody will go get webster's and post the definition but it will not answer the question. Ask many people and you will get many answers. Same goes for buffing and cleaning. For that matter when is a polisher a polisher, and not a buffer? Compounding and paint correction have hard fast definitions and I don't think anybody is attempting removal of deep scratches, marring, or orange peel with a PC. Where does swirl removal fit in, a popular use for the PC? Nobody will debate wax and sealant application are okay for the PC, but most folks do not buy a PC strictly for that application- they use it for slight blemish removal (polishing?).
I agree with the pad issue. The counterweight, however is not designed for pad size, it is designed for pad weight. They supply the 7424 with the 5" counterweight and a 6" pad... hmmm. The hook and loop backing plate kit comes with the 6" counterweight, but for what size pad? Now a 8" rotary pad on a PC is clear cut overkill. But what about 7"? This clearly depends on the amount of friction between the pad and paint because that is the load on the motor. There are too many unanswered questions here and we need more info. As a pad maker, I was simply hoping you would kindly shed some light. Thanks in advance.
Oh and just for reference- I love Porter-Cable tools!!
-Rob
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rhillstr
Recovering Postaholic
edschwab1 said:
Again the holes are for sawdust collection not heat dispersement. By having less backing plate material you force the remaing material to pick up the load and I would predict quicker pad failure. I think that while heat may accelerate the break down, shear forces as a result from to big of a load my by at work here as well.