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Tool Talk Discussion Forum

Cleaning my paint spray gun

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dennis frame

03-25-2007 19:30:32




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Just bought my first paint spray gun. What is the best way to clean it after I am done painting? After playing around with it today I spent almost as long cleaning it up as I did painting with it. Thank you in advance for all advice.




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beperson83

03-26-2007 09:13:16




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
I work at an autobody shop and im a painter. We have seperate guns for everything. We have a gun for wash primer, regular primer, sealer, base, and clear. We usually take the primer gun all the way apart for cleaning. Otherwise we just take the spray nozzel off the other guns and clean the cup. We just use laquer thinner, we make our own.



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Don LC

03-26-2007 08:34:56




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
You already got good advice..... ..if paint was water base use water..... what ever, spray it clean until your using clean clear spray.....wipe it clean with clean old cotten T shirt.....



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Mike M

03-26-2007 07:34:40




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
Sounds like you just got your first important lesson. Clean up is a large part of painting. If you are useing enamel paint I do my first clean up with reg. gas and then do a final cleaning with cheap thinner. I think gas may still be cheaper than thinner ?



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brad_bb

03-28-2007 10:58:37




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 Re: Cleaning my paint spray gun in reply to Mike M, 03-26-2007 07:34:40  
Gasoline?!? No way. No respectable painter would use gasoline. It contains oil. It also contains an odor. Gasoline is meant for engines, that"s it. Use clean up grade lacquer thinner to clean your gun, it"s meant to cut paint products.



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brad_bb

03-26-2007 07:22:31




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 Lacquer clean up thinner in reply to dennis frame, 03-25-2007 19:30:32  
Cheap clean up lacquer thinner is used for cleaning the gun. Most people buy it by the 5 gallon can at the automotive paint store. Last time I think it was about $30 for 5 gallons. You"ll use about half a quart each time you clean. Wear Nitrile gloves to protect your hands. Latex gloves will not work as they dissolve very quickly when they hit thinner. I have my paint station set up with an old 5 gallon thinner can with a funnel to dump paint and primer that wasn"t used as well as the dirty thinner from cleaning. I also dump the new thinner into 1 gallon rectangular cans for easier dispensing.
1. pour any remaining paint out into your scrap can.
2. pour a few ounces of thinner into your cup and swish it around and dump in scrap bin. Repaeat if necessary.
3. pour a few ounces of thinniner into yoru cup and pull the trigger while holding over the scrap can until the flow changes from paint to thinner. continue until if runs rather clear.
4. connect air and give it a shot or two.
5.Learn how to dissassemble your gun for cleaning. The cap, nozzle and needle should get soaked in a cup with thinner. Also same goes for a prefilter if you have one. 6. with thinner on a blue paper towel, wipe out your cup and clean the lid (mine is a gravity feed with a lid).
7. clean out the inside of your gun with brushes and thinner as needed.
8. Reassemble gun.

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circus

03-26-2007 06:48:41




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
It's one of those tasks that suck. The 4 oz cap from a hardener can works to soak the business end of your gun. My guns look disgusting but work well. For $1000 you can buy a gun washer that pumps reducer through and around for 10 minutes or so.



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glennster

03-26-2007 05:56:50




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
get yourself a set of gun cleaning brushes. the way i clean em, when your done painting, empty the cup, refill the cup 1/2 full with whatever reducer you cut the paint with, put cup back on, shake it up real good, then spray the reducer thru gun, about 1/4 cup. dump rest out, do again. then refill with lacquer thinner, repeat. with thinner in gun, if its a siphon gun, place rag over tip, turn gun over, gine couple quick pulls on trigger, this will clear vent hole. wipe cup and inside of gun out, swab with brushes and thinner.pull tip off, clean, clean all passages, reassemble gun, put 1/2 cup thinner in gun, spray a few times. i leave clean thinner in the gun for storage.

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Dennis Frame

03-26-2007 04:27:35




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
I am using a HV/LP gun and spraying enamel paint.



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Jim Broughton

03-25-2007 20:16:02




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 Re: Cleaning my paint spray gun in reply to dennis frame, 03-25-2007 19:30:32  
Dennis; We need more information about your spray-gun...what type is it? Airless, pressure pot, HV/LP or what? Also, what type of paint are you spraying? Let us know, and we'll advise you.



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