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Earlex HVLP problems

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Forum topic by MLK posted 05-02-2013 06:35 PM 671 views 0 times favorited 3 replies Add to Favorites Watch
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MLK

77 posts in 2556 days


05-02-2013 06:35 PM

I have an Earlex HVLP spray gun I use it for spraying mostly paint, stains and polly. It does a great job on parts 3 or 4” wide. The problem I have is spraying wide parts such as table topes, sides of cabinets etc. It seems like I get a heaver deposit of material in the center of the pattern and a lighter deposit of material on the edges of the spray pattern resulting in a streaking appearance. I spray vertical then horizontal, I tried both increasing and decreasing the with of the spray pattern with out much luck. I was wondering if anyone had a similar problem or has a fix for this problem.

Thanks
Mike


3 replies so far

View CharlesNeil's profile

CharlesNeil

1170 posts in 2616 days


#1 posted 05-02-2013 06:54 PM

Check the holes on the air cap . As well remove and clean the needle/nozzle , even the least bit of debris in the air cap holes can cause this, if you have sprayed much paint especially latex it can clog them up pretty easily and can be hard to get out, if needed soak it in a little MEK , but dont put the gun with any gaskets in the MEK its super strong and will dissolve the gaskets, let it soak for about an hour then using a sewing needle gently clean the holes. if that doesnt do it, you may need a new air cap

View NiteWalker's profile

NiteWalker

2710 posts in 1322 days


#2 posted 05-02-2013 07:42 PM

Make sure your material is thinned properly. Too thick and you’ll have the issue you’re having.

-- He who dies with the most tools... dies with the emptiest wallet.

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Earlextech

1024 posts in 1436 days


#3 posted 05-02-2013 08:00 PM

Both answers above are correct but I can add one more option. Unscrew the air cap ring 1 to 2 full turns loose. This will allow the air cap to move away from the nozzle slightly and will tighten up the pattern, forcing fluid into the center.
Also make sure, for your furniture finishing, that you are holding the gun about 6” from the project when spraying.

-- Sam Hamory - The project is never finished until its "finished"!

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