Compound paste?

[Ads_172]

I understand it's applied after all spraying has taken place, when dry and lacquer is hardening.

What purpose does it serve?
Is it 'essential'?
Where can you get it from?

Ta.

 

[Final Maxim]

when youve painted a car and its baked off in the booth, it comes out and its wet flatted with P1500 or P2000 wetordry paper.

you wet flat out all the bits of crap, runs, orange peel, etc. most bosyshops just wetflat all thats been painted.

when its wetflatted the laquer goes dull and to bring it back shiny again you need to cut it with a compound paste (Farecla G3) you use it on an electric mop and it cuts the laquer and brings back the shine.

buy it here http://www.cfsnet.co.uk/acatalog/CFS_Catalogue__Farecla_G3_85.html

 

[Ads_172]

Ah right, so would you say that it's worth it on a DIY spray job?

I've still to lacquer, but I have very little wetsanding to do as the finish is acceptable for what I want. I'd imagine the finish is going to be smooth after several coats of lacquer, so is it a bit of a pointless step?

 

[Final Maxim]

you mean using compound on basecoat? you only use it on laquer or high solid paints.

but definatly on diy sprays g3 is pretty much essential. im currently spraying a pretty big spoiler with aerosol paint and aerosol laquer. i aint too worried about the finish with laquer aslong as its covered and the colours right on the basecoat as i know i can wetflat it all well and polish it back up with g3 to a mint finish.

 

[Ads_172]

Nah, I meant on the lacquer but just trying to make sense of where it fits in.

I think I get it, you just pile on the lacquer but don't worry too much about alternating thickness as the g3 smooths it all back and polishes it up...?

 

[Final Maxim]

after its been wetflatted yup.

prep
clean
primer
prep
clean
basecoat
*optional prep if basecoat is poor finish*
laquer
wetflat 1500/2000
mop up with G3

G3 is pretty useless if you aint wetflatting your laquer, only really good for getting minor scratches and scuffs off etc.

what you painting? as if its a big thing like spoiler/bumper then G3 by hand can take a fair while. an electric polisher is pretty much needed for most things.

stuff like door handles/side strips you can do it by hand though

 

[pete_clio]

whats the procedure for using g3 and g10? i know people spray water on it to cool the paint down etc..

 

[Final Maxim]

yea, soapy water keeps the panel cool to prevent it from distorting and warping.

but generally i only really use water on bonnets and roofs. doors etc never get hot enough to warp.

water=ALOT more mess too

wetflat
mop with g3 with hard head
mop with G10 with soft head

 

[pete_clio]

so as you said above there you could use the g3 for takin out paint scratches... swirl marks? as i dont have and cant afford a pc and the millions of compuonds to use with it

 

[Final Maxim]

yea g3 takes out swirl marks, but finish with either G10 or some other polish as G3 gets rid of the scratches but aint a finishing polish. for best finishes an electric polisher is needed really.
you'll struggle to get a perfect finish by hand

 

[pete_clio]

brilliant! im sure i can get my hands on a buffer from someone and a scrap panely to give it a whirl and see! cheers

 

[Ads_172]

Ok, last question...

After applyng the lacquer, how long before using the compound? Should it cure first, or just be generally dry. I'm guessing it's got to cure completely first, as you would with any other polish.

 

[Final Maxim]

yep, touch dry 100%.

basic test is to just press your finger hard into an area that you cant see, if it leaves a fingerprint then it aint dry yet. should be dry in like a day or so without heat.