How much paint did your HVLP repaint need?

[BadDog]

Quick poll: How much paint (after being reduced) did it take you to do an all-over HVLP job?

2 quarts? 3 quarts? a gallon? more than a gallon?

[Ed]

I won't vote since I haven't painted yet but, I had a guy that will probably be painting my Z come over to look at my car this past Sunday. He told me that it would take about two quarts of primer, then he would spray sealer over that (not sure how much) then he said it would take about four quarts of color.

I'm going with PPG single-stage since it's better and I'm keeping the original color, 110. All this for a mere 5-6k.

[hls30.com]

If you have your gun setup dead-on, and you have good technique, the exterior of a properly prepaired S30 can be well colored with one quart, but most people will use three to get plenty of thickness for taking care of oopses, and buffing out trash.

A standard gun spews about 85% of the paint into the air as overspray, a good HVLP setup actually puts less than 30% into overspray.

The secret with HVLP is to really get to know your gun, and its adjustments to deal with viscosity. Dial the gun in for the coating in it, and shoot the car properly three times before you paint it. I shoot the whole car with primer the last time using the same technique I will be spraying the color on. Sand out the primer. I shoot the whole car with clear laquer thinner just like I will paint it, and then after wiping it down, I shoot it again with thinner, resetting the gun each time. Then I mix up the paint, 3 quarts for a complete Inside and out repaint-two shoots, adjust the gun, shoot a test piece to verify the adjustments, and then I shoot the car. The better you know your gun, and the moves to paint a car, the more uniform your paint will be. I use this turbine, http://www.hvlp.com/turbines/model1000.htm with this gun, http://www.hvlp.com/turbineguns/a5025.htm , and have been very happy with them, I used to use an standard expensive Binks-it is a great gun, but just wasts too much paint-relative to HVLP.

Will

[blitzkraig]

If you can, tint your primer/sealer close to the final color you plan on painting your car. It will save you paint cuz you won't need as much color to cover the primer. With darker colors it may actually be better to spray a dark gray primer/sealer.

[BadDog]

Thanks for the tips everyone, keep them coming :-)

[kmack]

I voted more than a gallon, but I used a standard spray gun (siphon). I hadn't purchased my HVLP gun yet. I sprayed 2 coats on my car, including door, window, and hatch jambs. Single stage Red 905 came to just over 1-1/2 gallons of paint.

Haven't had a chance to paint anything big yet with the new HVLP gun, but I have a spare fender I'm dying to play with!:classic:

EDIT: and regarding tinting the primer, I wanted a really bright red so I used a very light (almost white) primer underneath. the Red almost glows in the sunshine now!

[satans hammer]

i did a full repaint on a TVR (about the same size as a datsun) today but did not do in the door jambs,just the outside and i used about a gallon of activated PPG MS clear coat over the base coat and put three coats of clear coat on but it is down to the painter because no two painters are the same and i like to put plenty on the car but i did not use a HVLP gun as they are better to use with HS paint.

MS is meduim solids and HS is high solids or to put it this way if you have a gallon of MS then half a gallon of HS, they will can depending on what colour weigh about the same and the HS can be used as 1 to 2 coat paint system depending on conditions rather than the MS which is 2 to 3 coat system

[satans hammer]

when painting a car the main thing with primers and poor coverage paints is that the car is all one colour before top coating because if the topcoat paint does not cover very well it will not matter because if it is white ,beige or grey primer all over there will be no variation in colour coverage unless you paint panels that are in different colour primers, but this a general rule because red is better on white or beige and not grey(can go dark depending on the colour of the red) and yellow is best on white because grey and beige can make it go more green than yellow .

[satans hammer]

the thing with HVLP that i dont like is the paint finish ,i can get better paint finish with a standard gun that does not need as much buffing afterwards to get a nice shine and we are now using LVLP guns because theyuse less paint paint and have a better transfer rate, and the HVLP gun needs a bigger compessor to keep up with it.

HVLP =high volume low pressure

LVLP = low volume low pressure

[hls30.com]

Sounds like you are using a conversion gun, not genuine HVLP . I would not expect a compressor made for 220V to do nearly the job it was capable of with 110V regardless of the amperage behind it. True HVLP guns are made to wourk with a turbine, not a compressor. A compressor is made to make pressure first, then volume, where as a turbine is made first for volume, then pressure.

The system I use can put glass on metal and leave NOTHING in the way of orange peel-as long as the viscosity is used to set the gun up, and the proper painting technique is used. It really is all in the adjustment of the gun and the spraying technique. I have never used a conversion gun, but Apollo 1000 turbine and 5025 gun work so well, I don't need to try anything else.

In terms of solids content, I have not found any difference in spraying either, as the gun is adjusted to the viscosity of the paint for each mix. The variables in the gun are matched to the variables in the paint, which compensate for the flow characteristics of the paint, allowing the gun to sray one viscosity just as well as another.

Will

[1971rb26dett]

I will be needing to repaint my Z soon too. A gallon of paint is gonna be muy expensivo! Is that single stage or total for multistage?

[hls30.com]

A mixed quart of each coating used is enough for an exterior respray-with a correctly setup gun, and a good technique, get a mixed gallon of every coating for complete repsray. add two to three quarts for not being familiar with setting up the gun, and/or spraying technique!

Will