Hair and dust on fresh paint

[Vidal]

I've read the tutorials and a couple of threads on the matter but I'd just like to clarify.

I've re-finished the bumper on my car, the first time I've ever used a gun/compressor and I'm quite pleased with the results so far, except for a few specs of dust and a hair in the colour paint.

The paint is metalic and as I understand it you don't flatten metalic before applying clear coat?

I was intending to flatted the imperfections out and apply the clear coat which can then be polish finished but I gather this won't work with metalic?

So each time I find an imperfection, I'm to flatten it and re-apply colour....this could take a while.

Clarification much appreciated, thanks.

oh....cellulose BTW

 

[piman]

Hello Vidal,

I wouldn't put clear over cellulose, just polish the top coat. It makes future spot repairs a lot easier, although metallic isn't the easiest to do spot repairs on.

Alec

 

[Vidal]

ok that's interesting, I've been told a couple of times "it's metalic so it'll need a clear coat".

how long should I leave it before I polish?

 

[Dune]

If your using celly you shouldnt need a clear. Its always good practice to scuff up your laid coat before putting the next on. I use scotchbrite pads before each coat to give a mechanical grip as well as the paint chemical grip.

I always use two pack but wouldnt see a problem with scuffing your celly and then using clear. Any base metalics I use are properly scuffed before any clear is laid and these havnt reduced the metalic look.

What I would say is becareful with the clear. If you put too much on it will stick out like a sore thumb with that panel being much more shiney than the others. It can lead to the colour looking a shade or two different as well.

 

[Wozzaaah]

Hello Vidal,

I wouldn't put clear over cellulose, just polish the top coat. It makes future spot repairs a lot easier, although metallic isn't the easiest to do spot repairs on.

Alec

You HAVE to put clear over metallic, it's what gives it the gloss. It'll just be an unpolishable matt finish if you don't.

 

[piman]

Hello Wozzah,

metallic cellulose is glossy and does not need a clear top coat. At least all the ones I have used were.

Alec

 

[Wozzaaah]

Hmmm....admittedly I've not done much metallic but the stuff I have done has all been celly and has always required a clearcoat.
Where's the pro sprayers on here when you need them?

 

[Dune]

Not a pro sprayer but Ive rebuilt a lot of bikes and until 10 years ago (ish) I was using celly and the metalics I used needed no clear. I do prefer to clear over even celly as it protects the paint and gives it an even better shine. I do agree that spot repairs would be more difficult.

 

[badersbus]

I think there is a bit of cross purpose here fellas. I think Vidal is using a cellulose "basecoat " , not a 1 pack single coat metallic. .
1 pack metallics are available ,mainly seen in rattle cans and you do not lacquer these , similar to the old synthetic metallics. These were never really in wide use and not very good and not very forgiving in relation to poor technique , gun set up etc .
What vidal has i think is a basecoat , which will indeed dry mat and will need lacquer , 2k or single pack cellulose.
All automotive basecoats are in essence a single pack.

 

[piman]

Hello BB,

what is cellulose 'basecoat, I've never heard of that with cellulose before, all I've ever used has been a top coat?

Alec

 

[xpackken]

celly direct gloss does not need a clear coat , as it is the clear and base in a 1 component form , BUT direct gloss is only made for solid colours ! are you sure you dont mean you are using solvent base coat , in that case you will need a top coat 2k or celly, Why ow why do people fook about with celly its **** , if i went into work and they said "today you are using celly, " i would walk out

 

[piman]

Hello Xpackken,

if you are a professional painter then I understand why you are not keen on cellulose, but it has a lot of advantages for an amateur at home. The two circumstances are completely different; despite the disadvantages I'll always use cellulose on my own cars.

Alec

 

[jaykay]

cellulose is a single pack. no lacquer needed.
if you say it needs a lacquer,then its not celly.but 2 pack.

 

[medlar]

Cellulose basecoat requires a clear coat = clear over base, only its done in celly and not in 2k

someone earlier mentioned about abrading the basecoat before applying the clear coat, hope you dont do it as celly is very thin and would show swirl marks or whatever through the paint