Using the PC7424
Thread Starter
Race Director
Joined: Aug 2001
Posts: 18,236
Likes: 36
From: Haymarket VA
St. Jude Donor '05-'06-'07-'08-'09-'10
Using the PC7424
So I got the PC7424 a few months ago I have gotten decent with it. But I have problems getting out some swirls and light scratches.
So a couple quick questions...
How do I know if I am using enough/to much pressure
Also how much polish am I supposed to use. I have gone by the videos on autogeek but it just doesnt seem like there is a lot on there. Is this similar to the Zaino philosophy that less is more? Or do you need to really use a good bit on there?
Thanks for th ehelp
So a couple quick questions...
How do I know if I am using enough/to much pressure
Also how much polish am I supposed to use. I have gone by the videos on autogeek but it just doesnt seem like there is a lot on there. Is this similar to the Zaino philosophy that less is more? Or do you need to really use a good bit on there?
Thanks for th ehelp
Race Director
Joined: Nov 2004
Posts: 11,069
Likes: 1,290
From: Central Ma
I like MIP/orange, but some say SIP is even better. Follow up with ZPC/orange, then ZPC/white. 
Speed = 5-6.
Keeping to a 2'x2' area is important.
Not really scientific, but you don't need a lot of polish, and you use a little bit of pressure.
Speed = 5-6.
Keeping to a 2'x2' area is important.
Not really scientific, but you don't need a lot of polish, and you use a little bit of pressure.
Former Vendor
Joined: Apr 2005
Posts: 14,104
Likes: 244
From: South Florida
if you use to much pressure the machine bogs and pad doesnt quite spin freely. As for polishes, Menzerna Intensive Polish and Finish Polish are nice for most cars stepping up to Super Intensive Polish and Nano Polish for Vettes and harder coats specifically.
Race Director
Joined: Oct 2004
Posts: 14,863
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From: In a pineapple under the sea.
St. Jude Donor '06-'07-'08-'09
CI 8-9-10 Veteran
Take your PC buffer and press it down onto any bathroom scale until you get to between 20 and 25lbs and see how that feels to your hands. Then take the buffer and press on the paint until you get the same feeling. You'll still vary pressure in some spots, but that's the average amount of pressure you're shooting for.
