Neil Neil Orange Peel

Just got an HVLP spray gun. When spraying a rear wing the paint came very orange peely. Can it be that the paint was too thick? The panel was thourghly wiped down beforehand and was very clean. I flatted it back to try again and on the second attempt the same happened.

Any advice??

Thanks in advance

Jay

just guessing here......
air temperature and moisture in air ?
correct mixing on the bottles wont work for the temperature i hear
ask your local body shop maybe
:bounce

When spraying a rear wing the paint came very orange peely

What sort of Aircraft where you painting HAHAHA Wings indeed

We have MUDGUARDS here in Aussie

Most proberly you had the paint too thick or you applied a too heavy coat

I have found thin coats applied with drying time inbetween to be the best method to reduce orange peel.

You could block the paint down when its dryed and apply a pissy thin coat, this method is called flow coating and gives a flat no peel finish.

I'm assuming that when you say you wipe the panels down, you use a tack cloth to get any dust particles, and then a good wipe with a suitable solvent (cant think of the brand name off the top of my head) to remove any oils or waxes ?

What type of paint are you using - acrylic enamel or 2pak ?

it sounds like you have your air pressure to low,thats if you are spraying 2 pac. Orange peel noramly happens when then paint is applyed to thin and dry or if the paint is to thick and its not flowing out.what paint are you useing with what mix ratio? E.G. 2/1+10% or 3/1+10% etc. All so what air supply are you useing? is it man enuf to run your spray gun with out fading off becasue that can cause a pressure drop and orange peel. another thing, make sure that you gun is set up right as a HVLP gun is very different to any other sort .Are you useing a clear over base or a direct gloss? as a clear will always have a very slight peel affect but you can lose that by applying a flow coat (i highly thinned coat of clear) as your last coat.... hope this helps you out some.. if your still having dramas i'll help you out as best i can..............................

HVLP guns are a pain in the ass. Chuck it away.

But seriously they are a difficult gun to use espesially for the novice.
There designed to use large amounts of air volume at low pressure, then you get bad atimization that is large paint drops and lost of peel.

You'll have to mess around pressure and thinner mixes they are designed to reduce overspray and paint wastage.

Try reducing your material flow(paint flow) and move a little slower with you passes, but be carefull of runs in your paint nobody likes donny's

Neil...Neil..........orange peel..........If only I could see you again.....Rik says,must say I have not heard that line for a while.
I know nothing about paint though.

What is the best mix of paint to thinners for the top coat of paint?? I'm using cellulose paint.

The paint was too thick!!!

Rear wings ( or mud guards) are nice and shiny blue........just a couple of runs :cussing


Now who can guess my next question...?

how do you get rid of the runs...

vw54 wrote:how do you get rid of the runs...

Yes you guessed it mate.....

Stop Drinking ten pints of lager and going for a curry ? 😀

[Edited on 13-9-2003 by fatboy]