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Spraying Metallic Paints- What Is A Basecoat?


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#1 shellminimad

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Posted 28 July 2012 - 05:02 PM

Ive been looking into the different types of paints and methods of spraying and have found this quite mind boggling....

firstly i would like my mini to be resprayed a deep metallic purple with purple metal flakes which sounds quite simple right??? Wrong!! Lol.
do i choose cellulose or 2k?
The other thing is, what is the difference between a basecoat paint and a normal paint? Also...
when is it best to add the metal flakes in th spraying process?

Im actually paying someone to spray my mini for me but im providing the material, paint ect so i need to av some idea of what im doing and the process i that makes sense.

Ive found a metallic purple that i love but its 2k and it says its a bascoat paint... would this be any good for me? Help!!!

#2 Alex_B

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Posted 28 July 2012 - 05:08 PM

Right, I dont know anything about celly, but basecoat, is a colour coat that needs a lacquer on top, 2k just sprays on and stays a gloss so no need for lacquer.

basecoat you mix with thinners

2k you mix with activator,

so it will either be 2k or basecoat

Incidentally I just resprayed my mini in basecoat and lacquer, (because it was cheaper as I had access for free lacquer) and it came out pretty good, and I used a silver metallic paint

Edited by Alex_B, 28 July 2012 - 05:10 PM.


#3 AdamBilsy

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Posted 28 July 2012 - 05:42 PM

you could always go for a RFU(ready for use) metalic paint, doesn't need thinners or laquer, just pop it in the gun and away you go.

http://www.ebay.co.u...=item33729d1275

#4 shellminimad

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Posted 28 July 2012 - 05:46 PM

Just checked and the purple im wanting is fantasy purple violet pearl base basecoat.... it does. also say its a metallic colour thou :-S

also ive managed to answer my own question regarding when to add the metal flake. found a step by step if anyone else is interested here it is...

lication: Start by prepping your project as you would any other paint job. (Sand, Prime, etc.) Apply 2-3 coats of Base coat. Add the flake to a Clear base coat or lacquer and stir well. Depending on how heavy you want the flake effect, will depend on how much you will need. Apply the flake untill you get the effect you desire. (Always spray test panels before spraying you product or project to see the effect you want) Apply lacquer untill the flake is fully glossed

#5 donjarr

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Posted 28 July 2012 - 07:16 PM

Go with 2k as it gives a much better finish, and doesn't dull like celly does over time.

As for 2k paint yes it is mixed with activator but normally its for instance 4:1 and 10 percent thinners, (this varies pending the paint) but you can get measuring cups with all the markings on.

2k Basecoat or what I have used however is normally just mixed with thinners 50-50 but I have also seen other ratios so that will say on the can.

There are also 2k paints that they call a basecoat which is silver or such like which is used under a certain colour paint. For example I sprayed my mounting bike candy orange, which had a silver basecoat. I have also seen a local pro sprayer using several different colour greys as a basecoat masking off certain areas then candy coating over it which gives a variation of shades when you look at it.

All said and done ask whoever is spraying it what they think. Some people are really anti 2k, expressing a air fed mask is needed, where in reality a good carbon and dust filter mask will be fine for spraying one car, (this has been covered somewhere else but the effects of 2k are accumulative, a bit like smoking one fag won't kill you but a lifetime of it increase your chances exponentially) and if this guy does it all the time then he will have the proper masks etc anyway.



One last thing check whatever spray gun you are using can use that size flakes, as they come in varying sizes which pending nozzel size to how big the flakes can be.

:)

Edited by donjarr, 28 July 2012 - 07:19 PM.


#6 donjarr

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Posted 28 July 2012 - 07:28 PM

I just found your paint and as it states it will need a 2k basecoat thinner. As for painting metallic can be tricky to get a good finish so it would be best to light sand with 2000 wet and dry between coats so the final coat is perfect. Unlike flat colour you can't sand metallic quite the same if you have any dodgy spots on the final coat, as it tends to show up.

Also when spraying flake keep shaking the gun to keep it well mixed, and it's not quite the same as just spraying as sometimes you find an area with less in so just give that a light blowing over so it all looks consistent, then when happy give it a couple of just clear coats to finish off.

:)

#7 donjarr

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Posted 28 July 2012 - 07:32 PM

Me again

You may want to test spray using different colour primers, as my firsth choice would be black, but you might find using a silver basecoat will alter the look. Best thing is buy a couple of cans from a auto shop and do a test spray to see. If no difference go with a high builder black primer so you can rub it down nice and flat.

:)

#8 shellminimad

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Posted 28 July 2012 - 07:34 PM

Thanks that helps. this guy iv had a rough quote from has 25years of experience and has shown me some of his previous work. i havent yet seen him face to face to discuss the materials but im wanting to know my stuff when i do meet him to discuss it all.

another quick question...
can u use both celly and 2k in one respray for example a celly primer and lacquer but use a 2k colour?
I know u dont necessarily have to use a lacquer with a 2k colour however ive been told it gives a better, more glossy finish!

#9 danie garry

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Posted 28 July 2012 - 10:58 PM

Thanks that helps. this guy iv had a rough quote from has 25years of experience and has shown me some of his previous work. i havent yet seen him face to face to discuss the materials but im wanting to know my stuff when i do meet him to discuss it all.

another quick question...
can u use both celly and 2k in one respray for example a celly primer and lacquer but use a 2k colour?
I know u dont necessarily have to use a lacquer with a 2k colour however ive been told it gives a better, more glossy finish!


i'v heard that there can be awful reactions when spraying 2k over celly and vice versa, i even had reactions when spraying 2k over what must have been the rattle can guide coat!




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