2 pac clear over acrylic

[ae86trueno]

whoever mentioned that Acryllic paint is hard to get looking good obviously doesn't know what they are doing

That is my first job, its acryllic with 8 coats of colour, 8 coats of clear. Clear was lightly rubbed with 2000 grit to remove any orange peel that all paint jobs get (just go have a close look at the surface of a new car from factory) Then hit with Meguiars Diamond Cut but it's yet to be fully polished.

I have sprayed a whole car in Acrylic and it came out good with exactly the same process as yours, but that verses just 2 coats of colour and 2 of clear with no buffing or compounding required ill take 2 Pack any day.

Ben.

[rokusan]

2pak is EASIER to paint than acrylic, because A: it is less finiky when applying ie: less likely to fisheye, bloom, or separate the metalics etc, and B: because you use less, ie 4 coats of 2k coulor = 10 coats of acrylic and you can blow the 2k coulor on quite hard.

All metalics require a clear as there is no gloss in the base, also allows for the addition of pearls and tricky preeti stuff before sealing, any solid coulor usually has the gloss in it already, ie: white, red, black, solid blues and greens etc...

acrylics, enamels, urethanes etc all go off with evap. of solvents and a reaction with thinners, thats why iy doesen't keep once thinners has been mixed in.

Hardeners some isocyanate some not can be used with nearly all paints, though specific in thier application, ie enamels have their own type as do urathanes etc...
Once this hardener has been added it is now called a 2 pack. the hardener goes in the clear or the solid gloss coulor.

The reason they react is because they are not equal in their compisiton and compatibility and it usually cracks after getting really hot or cold. My bonnet has craked in heat circles because i used a different brand of hardener to coulor, looks kinda cool

[Invid]

I painted my car in a Pearl Acryllic with acryllic clear on top. Recently I had some F#$& open their door onto the pain and it took a huge chunk out of the paint. Cuz it's an insurance job i had a chat with a few spray painters. They were going to paint 2pac over the acryllic, for only one reason. None of them painted in Acryllic anymore. It can be done, but what I learnt was that the 2pac material can affect the acryllic underneath.

Therefore it is possible to do, but not recommended. Acryllic clear + lots of buffing = awesome finish.

[Smokey228]

well it is clear that i have no idea about this. ill have to clarify wif my mate to see wat he intends on doing to my car

i doubt myself now as to wether or not he actualy used a 2k clear over his acrylic paint. or infact used a acrylic clear over his acrylic paint.... Hrmmm....

[Sprinterboy]

I painted a car gloss white (corona) and used 2pk clear over it and it is yet to crack or go bad in anyway, also used the same method on another corona but a marron colour but i'm yet to see the car as i sold it before i got to buff it.
I just bought an MX81 cressida and will be painting it so i'll do a write up on it as I go.

[Dale]

Have a look at some magnas from the mid 90's era and notice how the clearcoat on them is yellowing and cracking away, also some commodores from the early 90's era have the same problem. By memory I believe these were the ones that had 2pac clear over acrylic used on them.

Part of the problem would be is that as acrylic paint hardens, it shrinks, and it actually never stops shrinking over time.

Anyone who says you can't get a good finish with acrylic hasn't seen it used properly. When I paint bumpers, quarter panels, boots etc, they're generally good enough off the gun to go straight on the car without needing any cutting and buffing. Full cars a bit different, but you can make it pretty minimal - the biggest problem is lack of ventilation and a proper spray booth with acrylic.

Shops use 2pac for the main reason because they need the cars out the door and back to the owners. You can paint something in 2pac and give it back to the owner within a couple of hours! Acrylic takes weeks.

[Smokey228]

yeh, ive been told that acrylic, if done right will come up better then 2k 4out of 5times...

but im drink. dont take my words for sumfing...ummmmm
jase

[oldcorollas]

yeh, ive been told that acrylic, if done right will come up better then 2k 4out of 5times...

but im drink. dont take my words for sumfing...ummmmm
jase

i think you should refrain from posting when drunking

tech is meant to be statements like "i know.." or "i have done.." or "technically it should.." instead of " i heard from a mates roommates budgies labrador.." (thats not specifically directed at you, just a common tech section problem )

[Major Clod]

You will be able to get both paints to an excellent finish, its all about the smoothness of the surface that gives you the shine.

Generally off the gun, 2K paints will give you an excellent gloss that requires little to no buffing. Acryllic will generally not spray as well off the gun, and you'll need to hit it with some wet n dry and a buff if you want a nice, orange peel free finish. The resulting finish of a wet sanded & polished Acryllic should be better than an off the gun 2K if done properly. Again, you can wet sand and polish the 2K to get it extremely flat and shiny, but if you let the paint cure and bake it, its going to be tougher to work on.

If you're happy with the slight orange peel effect that you find in factory paint jobs, you'll be happy with an off the gun 2K finish.

[rokusan]

anything will shine if you give it enough cutting and buffing, but once you've used 2k theres no going back! its like boost or twincams

[1jzracing]

I have done exactly what you are thinking of on my race car and it worked a treat but its a lazy-mans option

acrylic alwayse needs cutting and buffing to come up shiny and metalics always need a clear to gloss and its too easy to rub through on an edge or something which is just a right b!#*ch but it does come up awsomely with much labour of love

where as 2-pack will gloss straight off the gun

i painted in solid colour making sure i finished with a verry wet coat, left a few weeks to shrink and cure then gave it the lightest rub with 1200 then straight on with 2pak clear it came up a treat with no rubbing back or heavy buffing just a bit of a cut and wax

i dont know how this would last on a car left in the sun every day, it has lasted fine on a race car

[wagon62]

Ok, for all those wana be home painters out there...

I'm a panel beater by trade and do my own repair and paint jobs at home, just to clear up some confusion

YES - Acrylic paint cures by loosing solvents
YES - 2 Pack paint cures by a chemical reaction

So if anyone out there wants to paint 2 Pack over acrylic it can be done but its not recomended... (In saying it can be done, MAKE SURE the acrylic has had time to cure completely - meaning that it has spent atleast a week in the sun) 2 pack clear wont prolong the life of the acrylic paint........

Also, before painting the 2 pack clear make sure to wet rub the panel with 800 grit paper to ensure good adhesion.

But for best results, if your going to go to the trouble of painting a 2 pack clear why not paint a 2 pack base as well... No waiting time, just your 15 min flash off between coats and a 30 min flash off between base and clear.

Any questions, pm me

Cheers,

Mitch

[Enchanter]

...i remember seeing a car at a paint shop and all the paont was cracked when i said what the fu@k happened here???? the painter said that he had used acrylic and then 2pac over the top or somethin like that...

This is what happens when you don't allow enough "flash off" time between coats when spraying arcrylic under normal circumstances. As has been mentioned you would need to let the acrylic sit for quite a while before applying the 2k. I would be guessing they let it "flash off" but not properly cure, after all how many paint manufactures give instructions for applying 2k over acrylic, they probably followed the normal instructions for arcylic only.

[normo]

This all sounds pretty good fellas
I had the hatch done in acrylic a week ago painted 2pak yesterday
Holy sh**t the finish is fantastic
If the thing doesn;t crack or craze I will be ecstatic

[PDS86]

so there for wagon 62 is correct.