jossey
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| posted on 18/5/11 at 10:57 AM |
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dumb question spraying car.
SOOOOOOOO.
im gonna spray my car and im practising on a old body panel which i seem to be doing ok.
ive filled sanded and primered all ok.
But im using a gravity fed gun. there is an Air hole on top of the paint cup lid. does that need to be open when spraying cos i noticed if i open the
top if the paint when im spraying to check the levels the next spray has loads of paint....
sorry if its a Muppet question.......
Thanks
David Johnson
Building my tiger avon slowly but surely.
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blakep82
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| posted on 18/5/11 at 11:04 AM |
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i leave it open, it lets air in to replace the paint you've sprayed.
never noticed the next bit being full of paint though. might just mean you have to clear the gun by spraying away from the panel after checking. might
just be a gravity feed thing. I've been using gravity fed guns though
________________________
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britishtrident
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| posted on 18/5/11 at 11:33 AM |
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Has to be open and unclogged regularly.
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russbost
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| posted on 18/5/11 at 12:26 PM |
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I always put a bit of mig wire thro' the hole & leave it there, just agitate it once in a while to make sure it doesn't block. If you
get the airhole blocked it will gradually reduce the amount of paint sprayed as the vacuum in the cup increases, once vacuum is high enough to suck
paint clear of the airhole you will suddenly get much more paint transfer.
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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jossey
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| posted on 18/5/11 at 03:50 PM |
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cool thanks guys.
im getting my head round this spraying lark slowly but surely.
just need more practise stopping the orange peel effect.
Thanks
David Johnson
Building my tiger avon slowly but surely.
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blakep82
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| posted on 18/5/11 at 03:57 PM |
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what pressure have you got the air at?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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hubby
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| posted on 18/5/11 at 04:06 PM |
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need more practise stopping the orange peel effect
i find it easier being to the side while spraying instead of face on as you can see how dry or wet the paint is going on and make sure you cover each
coat with 50% of the spray on the next coat and always make sure there's enough light so you can see what your doing instead of hoping for the
best
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jossey
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| posted on 18/5/11 at 04:58 PM |
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Pressure wise Its a HVLP which should run at 3bar so I have it set at that at the filter trap and then running 115 from the compressor. It never falls
below 3bar.
Orange peel issue I think I just over did it then with the coat. I've sanded it smooth again with 1200 wet n dry n I'll apply another coat
later.
Think I'm getting there.
The paint spirt is sorted by leaving the vent open and using the wire as mentioned above cheers :-)
Cheers all
Dave
Thanks
David Johnson
Building my tiger avon slowly but surely.
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Nick DV
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| posted on 28/5/11 at 12:44 AM |
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What type of paint are you spraying?
Cheers, Nick 
"The force will be with you, always!"
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