xr3iAlex

Hi, its the first time i have ever sprayed with a gun. I am doing a couple of bits on a plain blue transit van. There is a couple of things i am unsure about.(by the way i am spraying in 2 pack)
I asked a car painter how much paint, harder and thinners i will need. He said.
200ml paint.
100ml harder
50ml thinners.

If i wanted more paint thoe how do i work out how much thinners and harder i will need?

He also said to me when you put the paint on put a dust coat on first wait 10 min. Then two coats of paint.

I have bought 2k fast dry harder as well.

Basically i just want a bit of advice, and to make sure what i have been told is correct. Thanks guys.

FordsR4Chavs

Dont know about the paint to hardener ratio but make sure you use a full air fed mask and use a paint suit as 2k contains Isocyanates which can be lethal. Its important to cover up as it can seep into your bloodstream through exposed skin.
Not trying to scaremonger, its perfectly safe as long as you just take these basic precautions..

chaffe

NORMALLY the paint to hardener ratio is 2:1, so divide how how much paint you need into three and two of those is for paint the other one for hardener, simple maths. As for thinners, you will have to add as much as you need, sometimes none at all, sometimes 20 percent, that is just down to experiance though im affraid. As a rule try 10 percent and see how you get on, less is probably best if you are starting off to avoid getting runs. A dust coat then two or three coats is about right, again depends on how well the paint covers, just be very carefull to put on an even coat, avoid "double" coating areas to stop runs! Better to aim for good coverage than gloss from the gun, avoid the temtation to get the gun too close, as this will make it run also.

Dr. Blofeld

Edges and detail first, large areas last.

vaughant

iTrader: (1)

Top advice,get some heat in the booth/workshop as well to prevent runs,strange as it sounds they get far worse with cold temperatures.

Don't worry about the sheen yet,you can always cut and polish it out afterwards to achieve a good finish.

chaffe

Yeah heat, forgot about that! just make sure you get a good finish on detailed ares, door handle recesses etc as you cant polish these areas. Practice will make perfect mate, just remember you can always rub it down and paint it again!

zetecdan

cleanliness is important to. ideally wipe down the area to be painted with tack rags to remove any dust etc and panel wipe to remove silicone and oily finger prints etc. just prior to spraying. wearing disposable gloves will help.

airbrushfx

that be all good advice up above

however what areas are you intending on painting as theres different methods to spray

also what 2k paint have you got, base or top coat? colour?

chaffe

he is using direct gloss blue mate, cleanliness is very important, clean pants are a must

xr3iAlex

Thanks for all the advice lads. I am all set for tmw now ! any other advice ? Is the paint mixture i have been told correct ? should i wait 10 min on the dust coat?

xr_craig

iTrader: (2)

I wouldn't wait that long on the dust coat but i'd definately wait that long between
proper coats.

Paint mix is fine. Probably put a bit less thinners in it though and see how you get on.

dingla rs

iTrader: (2)

with fast dry dont leave ten mins or it will be dry ,when you start, spray abit of the masking sheet/ paper ,then the car /panel ,as when the bit you spayed on sheet starts to tack off as you can touch it to see you knw its time for next coat i always use
20%thinners in solid colours