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First/Second attempt with DA..

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Boothy:
Yesterday I used my new DA with some Menzerna polish and Sonus pads and posted up for some advise on breaking the polish down correctly.

Well I've had another blast today and did the bonnet with Menz FG500 and the white SFX-2 pad. I had already done the bonnet yesterday with some Menz PF2500 and achieved some correction but it just wasn't right so went with the FG500 this time around.
 
Came up ok I thought but then in the sun I could see some holograming which I believe is caused by either not breaking the polish down correctly or using a harsh compound?
 So I went back and finished the bonnet with some PF3000 and it seems to reduce the holograming but not totally. The clarity if the paint has improved loads but in the sun I could still see some swirling and what I can only describe as clusters of very tiny spots/dots?
 So this time I tried a small section of the bonnet with the FG500 and the SFX-1 pad and inspected that afterwards. That doesn't seem to have done anything above and beyond the SFX-2 pad and the light swirling and holgraming is still visible in direct sunlight.

So I need to know where to go from here really? Do I just do the bonnet again with the most aggressive pad/polish combo or buy a pad with more bite?

I'm also worried that if I keep doing the bonnet I'm gonna end up going through the clear coat?

Anyway some pathetic photos with me Galaxy S2 mobile:

Before......




After......

stealthwolf:
Okay you seem to be faffing around too much. Have you read this guide clicky

Did you work the polish properly? I dont' know about the newer Menzerna range (or whether they're just rebranded old range) but you need to work the polish properly. You also need the polish to be warm - I actually wrap mine in a plastic sandwich bag and then dunk it into a small pot of hot water. This warms up the polish and helps speed things up.

Use this chart to switch between the old and new names: clicky

Go slowly, work the polish and use the zenith method. All described in the above guide.

As for clear coat, it's around 100 microns thick I think. You will probably remove a max of 2-3 microns so unless you stay in the same spot for a few hours, highly unlikely.

The first time I polished the car, I used the lightest cut polish on a finishing pad. It helps you get used to using a DA and you get used to the contours of the car. Once you're confident, only then would I advocate moving on to other polish/pad combos. I'm sure the pros here can help give you some tips!  :happy2:

Boothy:
Cheers Stealth. I've read that guide a fair few times which is why I ended up messing about really? Started with the finest polish and worked up until it removed the swirls, which I thought it had. Only later did I spot the golfeams etc when in bright sun light.
 Done the front of the car now and feel relatively comfortable with the machine. I just want to do the process correctly. Initially I couldn't get the polish to break down but I was told I was using too much so used less on the next panel which I think has come up ok?
 Read loads,  watched loads of youtube videos but don't seem to be getting the results and don't wanna be doing the same panel ten times.
 
Also, if I use a harsh polish should I then follow up with medium and then fine before glazing? Or should I just go harsh to fine in one?

alexperkins:
Depending on how heavy the cut is, you will need to refinish it with a lighter final finish.

keano:
Menzerna get me so frustrated with their bullsh*t names!

it's like deciphering the bloody Davinci Code choosng a sodding polish!  :grin:

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