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Old 02-05-2018, 03:36 AM   #1
gavbey
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Hello, 1995 Mazda RX7 Compounding question

Hi there,

Ive just painted my 95 Mazda RX7

Its White (A3D Mazda pure white)

the job looks fairly decent however im going to de nib and wetsand it to get it completley flat.

Its 2k gloss so no laqure. I also put down 3 thick coats so plenty to play with.


Im looking for advice on compounding.

Im going to wetsand 1500 with DA then 2000 by hand then compound with DA.

Im using Menzerna Heavy Cut Compound 400

should i use a wool mop or a foam pad. (White firm)?

then a finishing pad then ill chuck some fusso soft 99 on for a little bit of protection.


any help would be apreciated. i come from track car background and polishing has never been my forte

Cheers

Gav.







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Old 02-05-2018, 06:38 AM   #2
pawlik
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Finish sanding process with p3000 and DA. Better with small stroke 3 or 5 mm
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Old 02-05-2018, 08:34 AM   #3
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I wouldn't 1500 by machine then 2000 by hand. that makes no sense. You have put 3 thick coats on so I'm assuming there is a lot of texture to level. You need to block with 1500 or more, then move to 2000ish either by hand or machine, then 3000 ideally. But that first sanding set is the crucial one as its the one hat will truly level

Then use wool, not foam to cut
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Old 02-05-2018, 07:11 PM   #4
gavbey
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Quote:
Originally Posted by stangalang View Post
I wouldn't 1500 by machine then 2000 by hand. that makes no sense. You have put 3 thick coats on so I'm assuming there is a lot of texture to level. You need to block with 1500 or more, then move to 2000ish either by hand or machine, then 3000 ideally. But that first sanding set is the crucial one as its the one hat will truly level

Then use wool, not foam to cut
Much appreciated for your reply.

Its overall quite flat, not much orange peel, i must have got lucky.

ok so ill go 1500 block wet sand by hand then 2000 with DS then 3000 with DA,

would 1500 on the DA be ok or best by hand?


Menzerna 400 with wool pad then ill stick foam on to Finnish it with a glaze polish of some sort then seal it with fusso,


Thanks again.
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Old 02-05-2018, 08:35 PM   #5
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1500 by random orbital is absolutely fine if there isn't crazy texture and you don't need it perfectly flat. Its way quicker. But if you do don't go to hand sanding after that, just go through the grades on the random orbital then wool and compound
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Old 04-05-2018, 05:48 AM   #6
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1500 by random orbital is absolutely fine if there isn't crazy texture and you don't need it perfectly flat. Its way quicker. But if you do don't go to hand sanding after that, just go through the grades on the random orbital then wool and compound


Perfect. Thanks you very much. ill keep you updated,

Wool pad on (sorry for lack of words) Non orbital sander
Microfibre Pad on the same?
Or compound foam pad?

What would you prefer? I like the look of wool pads. the large ones 8"?
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