Orange Peal

I spent three weeks cleaning and sanding JD70. I took several parts off of the tractor. I used epoxy primer and followed with
PPG urethane with hardner. My main problem is orange peal. When I Googled the problem, answers were numerous: too much paint,
not enough paint, too much pressure, not enough pressure, etc. Difficult to paint parts on the tractor, and not get overspray on
other parts. It was 90+ degrees and high humidity when I painted. Could that have caused orange peal? I had to sand the orange
peal off of the primer coat. Now I am ready to paint the green urethane, but I am afraid I will get orange peal again. Any
suggestions would be most appreciated. Thank You!
 
That was way too hot to paint. Painting is a five balancing act between enough paint and too much. Orange peel can be caused by a lot including not enough paint, drying before it hits and can't flow together and too thick. If you have something to test it on, try it on that took you get the perfect setup.
 
Patsdeere pretty much summed it up. Now you know why everybody is not a painter. If one could get it out of a book or even on here , everyone would be a painter. No one wants to "practice" with the price of paint an all but unfortunately there's no other way. Paint usually tells "you" what it wants and NOT the other way around. It doesn't like "90" degrees anymore than it likes 40. It will "make" you practice to get a good result.
 
With the internet a lot of this knowledge is free. But the time to ask is before you spray. Any application guide I have ever seen would have said too hot to spray.
 
Patsdeere had it.

You also have to use the reducer that is designed for the appropriate temperature range.
 
The temperature caused the orange peal. High humidity would have been more likely to make it blush (white haze in the sheen). Like others said you can get a slower drying solvent for hot weather but unless you are thoroughly experienced in using it you are more likely to get runs all over instead of orange peal. It's best just to do the work in the morning or evening when the weather is better.
 
I try not to but I believe I have painted at 90 degrees, inside. Forget 90 degrees outside if any sun touches. PPG Omni has 3 reducers, one for in the 60,s, maybe high 50,s one in high 80's and low 90's. The others will work for the 70's and most of the 80's, I have never heard of epoxy peeling. Also you did not mention the hardener for epoxy. Do not mix difference brands.
 
(quoted from post at 05:14:59 07/24/16) The temperature caused the orange peal. High humidity would have been more likely to make it blush (white haze in the sheen). Like others said you can get a slower drying solvent for hot weather but unless you are thoroughly experienced in using it you are more likely to get runs all over instead of orange peal. It's best just to do the work in the morning or evening when the weather is better.

Painted this when it was too hot & had major problems. I had spent hours on the prep. Sandblasting, priming, wet sanding and more wet sanding, shot the paint and this happened.
38787.jpg
38788.jpg
38789.jpg


I had to get a power sander and sand it back off and that was tough becuase i had a hardener in it and it didn't want to come off. I finally got it "better" to where it at least had a shine to it. I couldn't get the rough texture out of the peieces by sanding though. I just admitted defeat on that one and was ok with the result.

38790.jpg
38791.jpg
38792.jpg
38793.jpg
 
(quoted from post at 08:23:24 07/23/16) I spent three weeks cleaning and sanding JD70. I took several parts off of the tractor. I used epoxy primer and followed with
PPG urethane with hardner. My main problem is orange peal. When I Googled the problem, answers were numerous: too much paint,
not enough paint, too much pressure, not enough pressure, etc. Difficult to paint parts on the tractor, and not get overspray on
other parts. It was 90+ degrees and high humidity when I painted. Could that have caused orange peal? I had to sand the orange
peal off of the primer coat. Now I am ready to paint the green urethane, but I am afraid I will get orange peal again. Any
suggestions would be most appreciated. Thank You!

How'd it come out Randy?
 
I sanded out the orange peal. I am finding it very difficult to consistently get a good paint job. Sometimes I miss a spot so I
go back and paint it then have over spray on the good areas. Sometimes it is difficult to control the air pressure. I am finding
out the less air pressure the better.

I am better at cleaning, sanding and preparing the metal for paint, than painting!
 
That's not what I would call orange peel.
Looks to me that the paint was not thinned enough or wrong thinner.The gun was just "spitting" the paint on.
Always test your pattern and mixture on a scrap piece before painting.HTH
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top