water based paint

FrankM83 · water based paint

well thanks to the EU water based paint is in Malta but not very welcomed as many painters are having problems with the finishing coat showing what looks like fisheyes, this is causing my painter a lot of headaches!! and consequently he's always pushing my van away and he just tells me come back in a week so I'm considering doing the job myself so does anyone have some good tips on this type of paint? thanks

smeggy

sounds like the intercoat adhesion aint good, try using a 2 pack or epoxy primer, instead of panel wipe wipe down the primer with lighter fuel (try it on a test panel not your car ), lastly you will have to try different clearcoats till you find one that works, i used a 1k clear and it destroyed my paint pop marks everywhere, i used a product called diamond clear which is a 2k and had no other probs. Hope This Helps

Orkney

2 pack international boat paint frank ! off the shelf but not a huge choice of colours - thats what i'm going to put on mine with a foam gloss roller.

FrankM83

Thanks guys what I was really looking for is some sort of tutorial regarding these new water based paints! Thanks

smeggy

the prep must be absolutely dust free, read the data sheet that came with the waterbased paint this will give good amounts of data on prep, drying times,spray rates and clear coats. waterbase is a whole new ball game, with thinners based paints you pop on nice even coats, with the water base you build the coats up from memory you use 3 dust coats for complete coverage, one thing you dont want is a run as theres no way of getting rid of it other than stripping the complete panel (it just wipes off whilst wet). as ive already said it a totaly different way of spraying just practise on an old panel. Hope This Helps

Chickenjohn

I would visit the UK and buy some good olde celly and the thinners and primer needed. Much nicer paint to spray.

smeggy

I forgot to say if your diluting the paint dont use water, use the stuff the paint supplier recommends, as impurities in tap or bottled water can show through

alex_holden

Jonathon

Not yet used water based but the shop next to us have. They apply one grip coat followed by one heavy coat and thats it. The difference between water and any solvent based is that it dries through air movement and not heat. So a booth is almost a must as it takes much longer to dry and with the use of fans to dry, means that the chance of contamination is much greater.
As said before prep is all with this paint and problems less easy to correct than with solvent based.
Initial colour matching has proven very poor,but as time goes on this will improve. Might be an issue when trying to match original celly finishes. Blow ins are a no ,no so full panel painting is the order of the day.

Guest

Be aware water based auto paint is pants. Even major players like GM and Toyota have had no end of problems with water based auto paint. It is prone to an effect called 'drift' and is so porous, contaminants often cause the paint to peel or crack. Often called 'blow off blue' or 'snake skin grey'.

Attempts so far to improve adhesion include applying it over powder coating, or sealing it with 2K clearcoat. I've seen pugs with bird poo on the roof, and the paint comes off when you wash them.

For colour matching, and blowing in repairs you cannot beat good old cellulose paint. Even oil based paints like Japlac are better suited to auto paint jobs than water based paint. I'd rather use hammerite and a roller than the water stuff Shocked

Jonathon

Must admit it fills me with dread !!

Guest

Jonathon

We could register for celly use, but none of the suppliers in our area are going to stock it, and we can probably find 2K for at least 12 months, maybe more . Ultra high solids will be around as a stop gap for solid colours whilst i get to terms with water based. Finding £3K for the blowers might smart a bit !!

Chickenjohn

Chickenjohn

"For colour matching, and blowing in repairs you cannot beat good old cellulose paint. Even oil based paints like Japlac are better suited to auto paint jobs than water based paint. I'd rather use hammerite and a roller than the water stuff "

AGREED 100%!

Or, household gloss paint thinned with petrol and sprayed! Evil or Very Mad

Jonathon

I believe that in its infancy 10 years back there were major issues with water based. I think that most of these are now solved and I told that although different to spray its easy to use, for me its getting around the idea of not being able to remedy a problem mid job and the length of time that the car is prone to contamination in the booth.
Once celly and 2K have gone, I fear that it will be the end of DIY paintwork. Sad

Chickenjohn

Celly will continue, there are manufacturers wanting to make it and the FBHVC together with the paint suppliers is gradually persuading the powers that be that there is not even any need for a license if the celly is for a classic. We have to wait on that decision.

besides, cellulose paint "for industrial or agricultural uses" will still be available. Expect Minors to be seen in "industrial or agricultural " colours!

The alternative is get 5L of household gloss mixed in Trafalgar Blue at B&Q (or other colour) and use petrol as thinner- MUCH MUCH worse than relatively benign (compared to petrol) cellulose thinners- but people are allready talking of this as a way of spraying your classic in the future. I dont recommend it though. Really, cellulose paint and thinners would be much better for the environment and safer than household gloss and petrol.

If I had to, I'd buy 20 cans of aerosols and re-spray that way.

Jonathon

But who will stock it, no one in our area is prepared to invest in new mixing machines and tinters when the mass market is for water based. Crying or Very sad

.

Orkney

Can see a celly black market emerging ... bet i could get as much of any colour i wanted in one phone call, strictly for agricultural purposes of course Wink

Chickenjohn

Google it! if not available locally, you can order over the phone or internet, one place says 24hrs delivery!

DTH

IMO celly will be available for a long time yet as it is still widely used in aircraft, boats etc and the only exclusion is for motor vehicles - which is only a tiny % of its use anyway.

Chickenjohn

and classic cars have an exclusion to the exclusion!

Guest

I agree Celly will be around for a long time yet. Not available locally just means a mail order company will make huge profits shipping the stuff all over the country. There are also some great synthetic enamels out there as well, some of them fast drying as well.