Mk1 Golf Mars Red

[jaykay]

what brand of paint you using??

 

[smillsey]

yea i meant 1 coat of etch and 3 of primer,

using lechler from paints4u.

 

[jaykay]

sounds good,go for it.
you got spec sheets??if not download them.

 

[smillsey]

yes i have, but not for the regular high build primer, might ring them for it...

what would you suggest stripping the old primer and "crap" off with, crap i mean dirt etc...

 

[jaykay]

yep,strip it,then it can't interfere with it down the line.be sure you clean striper off well.

 

[smillsey]

with paint stripper?

 

[jaykay]

jk

striper is ok.or just use a d.a. make sure you take paint of edges.

 

[tazzy-lee]

nice golf mate anymore pics

 

[smillsey]

yea loads, i will get them up when i have pics of the wing.

Well the prep went awesome the locks were good and i was really please with how flat i got it. However on spraying the colour i got a lot of overspray kinda dry marks, now i think i need to reduce the air pressure to the gun and narrow the fan wid is this correct? Also, It says on the technical specs it is dry within 8hrs at 20 deg, why do i have to wait until a week???

Also got harly any orange peel which i was happy about, just need to get the gun set up so i dont get as much overspray!"!!!!

Any help would be good, i would like to flat it today and get one more colour coat on, but im worry it wont be dry enough....


scott

 

[^neo^]

Don't rush it or you'll be back to square one!

 

[smillsey]

yes but the techniocal specs say 8hrs lol.,

 

[jaykay]

jk

go back to spec sheet,does it list a slow thinners?
if so that is what you need, this weather it will be drying to fast.
if you narrow fan down your be getting to much paint over too narrow a area,that will let it run.dont rush it now.
drying forget spec,give it at least 3-4days,aweek would be better.

 

[smillsey]

ok mate, i will look, but paints4u suggested the antibloom thinners that i bought,

i'll wait to wet flat

 

[smillsey]

on closer inspection, most of what i though was dirt is actually "grains" of paint. Kind of like balls of paint this size of grains of sand, most of it isnt on the surface.......

im confised now....

 

[malcolm]

Are you running with a filter on the pick up tube? Often blobs of paint are the flakes that come off the side of the paint tin. If it's a new tin how are you stirring the paint? Not a screwdriver I hope.

Most of my ideas on the subject are in the paint section of the forum. Advise for setting pressure and working out fan shape in there too.

No idea why the paint is taking so long to dry. Cellulose based or self etch stuff normally goes off in a couple of hours. Double check that your thinners are the correct type!

 

[jaykay]

again i would think is going on dry,that is drying befor it hit the panels.a slower thinner will sort it out.

 

[jaykay]

it will surface dry quick. but thru drying will take longer. polish it early and you will very likely cut thru the paint.

 

[smillsey]

cheers guys, think i know where to go next.......

The paint is still wet underneath (especially on the drip i got)

Well here is the PAINT spec list

Paint 1000parts
thinners 600-800parts

Spray viscosity at 20deg : 18" DIN4
Air Cap 1.2mm - 1.4mm
Air Pressure 4 Bar
Coats: 1 light -2 normal cross coats
Interval : 5-10 Mins at 20Deg


So after reading that i set my Devilbiss GTI with a Transtech 110 Air Cap at 4Bar (when trigger released)

All im going to say is... what a dick rider.... As it says in the gun literiture that it requires a 29PSi/2Bar inlet pressure......

I take it the 4Bar on the paint tech sheet is max???? Or what?

Also, i have been reading about spray patterns.... and will also read your malcolm....

But even if i know how to set up, i had it at 4 Bar, so i was fooked from the start....

But nevermind, thats what this panel was for!!!! Making errors.... I will sand down with P600 and go for it again!!!!


Please jaykay advise me on the inlet pressure.....

thanks, Scott

 

[smillsey]

Oh and i do have a filter from the gravity cup.

Im going to get some mixing cups in the week....

And not use 50/50 mix, i'll do the 50/40 mix as per the tech sheet......

And go for 2 BAR?????

here are some pics.....

I was actually quite happy with this bit...

7

Then here is the "Dryness and Blobs....."

 

[jaykay]

devillebis gti is a hvlp gun,meaning low pressure.saying that most people,me as well over drive them.meaning turning up the pressure from what is listed by manufacture.
try 2bar(29psi) if that seems slow up the pressure a bit at a time till your happy with it.
2bar is what devillbiss call for.