Spraying paint at home advice?

[shadango]

.... and you pay attention to where you hold the gun its fine IMO

Can you tell me what you mean by that?  I was wondering how it would do when the hood will be horizontal.......

[turbostang7]

You should be fine, siphon feeds are just less forgiving of angles as gravity feeds. At least I my experience that is. With primer you will be fine I would hang it vertically if I were going to spray it flat black with the siphon feed gun just for ease of spraying

[spamtank]

 

[js29no]

A parts store or jobber that sells paint should have A primer gun.  ATV makes A pretty good one.

[Cudakiller70]

http://www.secondchancegarage.com/public/720.cfm

[rhamson]

I have a cabinet business that I do sprayed finishes for my clients jobs. I also have sprayed my own cars for many years setting up plastic booths with exhaust fans. I use a SATA HVLP setup with a 1.2 nozzle that I spray both primer and finish with and it works well for both. I also make use of the drip cup test to assure the right viscosity of the paint for spraying. I don't know about the siphon cup type as a lot more air is thrown at the piece and overspray could be a problem with the increased air volume. When using a fan I make sure I have a system by which a filter is in front of the exhaust fan to catch the wet air before it gets to the fan. I also use a fan that has a spark arrestor built into it. I have had some beautiful jobs come out of my booth and many who want me to paint theirs as well.

[shadango]

So I am trying to do this spraying in my outdoor tent garage.   

Thought today would be perfect...low humidity and high temp of only 78 or so.....well turns out its like 95 in my tent garage.

 I know thats too hot to paint......hoping the temp drops in the evening....but I have a feeling it will be hot well in the tent well into the late evening.   

I need to spray an epoxy primer, two coats with 30 minutes flash between them....and then  30-45 flash then the single stage urethane.....

I was hoping to do both sides of the hood in epoxy, but that isnt gonna happen I dont think so I am gonna do the epoxy and color on the underside first, then get back to the top side.....epoxy primer, filler primer, then topcoat.  Any advice? 

The flash times Eastwood has provided with the paints is for 70 degrees.

Starting to feel overwhelmed,,,,,

[lulurocks]

So I am trying to do this spraying in my outdoor tent garage.   

Thought today would be perfect...low humidity and high temp of only 78 or so.....well turns out its like 95 in my tent garage.

 I know thats too hot to paint......hoping the temp drops in the evening....but I have a feeling it will be hot well in the tent well into the late evening.   

I need to spray an epoxy primer, two coats with 30 minutes flash between them....and then  30-45 flash then the single stage urethane.....

I was hoping to do both sides of the hood in epoxy, but that isnt gonna happen I dont think so I am gonna do the epoxy and color on the underside first, then get back to the top side.....epoxy primer, filler primer, then topcoat.  Any advice? 

The flash times Eastwood has provided with the paints is for 70 degrees.

Starting to feel overwhelmed,,,,,

Your going to have a heck of a time  doing  epoxy  then color then flip and repeat,  it's a masking nightmare to keep the primer from the top side off the bottom Color.   It can be done but why don't you pace yourself  .

And do  epoxy primer bottom , flip  epoxy top , surfacer, then wait overnight for color,  all those coats are a lot of solvents to flash off entirely.  You don't want deal with solvent pop ......

Then you get yourself used to your gun before you shoot color, and lay that down like a BOSS!
 

Call Eastwood and see if there paintline has different catalyst

All paint lines have  specific  hardness and catalyst to perform in most temps  ranges to speed or retard the process....   Actually 90-95 is awesome paint weather ...  IMO
 

[shadango]

As it turns out once the sun went behind some trees at 5 or so and the temperature in the tent dropped pretty quickly to about 78. So I started to paint. Did the epoxy first on the underside of the hood. Then I moved on to the color coat .....both stages went on wel, but I did notice for the color code that it was laying down with a bit of a texture to it? I guess that's how it's supposed to be. I think I may have a little bit of tiger striping....due to inconsistency of the distance of gun to surface.... The underside of the hood was harder than I thought because of all the nooks and crannies and valleys. Today I plan on flipping the hood, doing the epoxy, then the filler surfacer. Also want to do the fiberglass hood scoop, A Separate piece, at the same time, so I have to figure out how I'm going to do that to try to save some time on the cleanup between each stage .

[lulurocks]

Texture could be alot of things . 

But usally pressure being to high and drying in flight to your panel.. If its sandy texture

If its globby pressure is low..

Or you could be to far away from your panel  .  Most hvlps are a 6-8" distance away from panel..

Sounds like you kicked some ass though..

Can you set up some type of test paper in your booth so you can see your  pattern on paper before you put it on a panel?

Search : hvlp setup on youtube there is some great videos on gun setup .


 

[shadango]

Texture could be alot of things . 

But usally pressure being to high and drying in flight to your panel.. If its sandy texture

If its globby pressure is low..

Or you could be to far away from your panel  .  Most hvlps are a 6-8" distance away from panel..

Sounds like you kicked some ass though..

Can you set up some type of test paper in your booth so you can see your  pattern on paper before you put it on a panel?

Search : hvlp setup on youtube there is some great videos on gun setup .


 

Gonna see what it looks like this evening....it has been curing all night and will actually bake some today as the tent heats up in the sunny hours....it was 105 at one point yesterday before I started painting.  Crossing my fingers it doesnt look too horrible.

I plan on doing the topside and scoop this evening.  Not sure if I can spray the fiberglass scoop with just the filler primer (I have a gallon of that) or if I HAVE to epoxy first.....I am low on that.

I just cant figure out the gun issue.   Its a HVLP but doesnt want to spray at low pressures as show non the digital pressure gizmo I am using on the gun...

[shadango]

You should be fine, siphon feeds are just less forgiving of angles as gravity feeds. At least I my experience that is. With primer you will be fine I would hang it vertically if I were going to spray it flat black with the siphon feed gun just for ease of spraying

My siphon feed gun wouldnt draw the epoxy primer AT ALL.    No idea why.....everything seems to be spotless and clean....took it apart, cleaned again etc.....so I ended up using the gravity feed gun.....

[shadango]

Search : hvlp setup on youtube there is some great videos on gun setup .

I ended up at eastowoods site....

Looks like I did a couple things not quite right....

1) he said to run the gun 'wide open" for most things....I THINK I did that but maybe that is where I goofed....
2) for the inlet pressure versus cap pressure....the paint spec sheet showed a 15lb air pressure setting for HVLP guns ...maybe that is a CAP pressure versus INLET pressure.  He said most HVLP guns need 30-35 lbs at the inlet...which is what I thought I was using.....EXCEPT....
3) he says you should take that reading with the trigger pulled. I was looking at it idle.  Will try that.

[lulurocks]

Its know we're  near the same thickness , but you can practice with bottled water  , this will allow you to play with the gun and see how your settings and pressures effect your shape  , density , and size of your pattern.

The epoxy might need. 1.8 tip minimum check your tech sheets , minimum tip sizes are always listed..

[glovemeister]

If you are running an HVLP Turbine System, you need to run the hottest reducer you can get.
For epoxy run 1.8 tip, fan basically wide open.
Base clear, I'd probably try something 1.3-1.5 area.
10% over reduction is a good place to start when you spray with one. Seems to help flow out on these.
Run a set of icepacks at the turbine inlet as well, that can help reduce final temp a good bit.
Once you figure out the tricks you will wonder why you didn't use it years ago.

Amazing to be able to sling some paint with another car in the shop un-covered and essentially get zero airborne mist.