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Author Guide to spray painting.
Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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9th Feb 04 at 23:04   View User's Profile U2U Member Reply With Quote

Gonna start learning to spray with gun and compressor, just wondered if anyone had and tips and tricks i can use, and also need to learn how to mix paint and thinners properly (what ratios)

Cheers
Mist.
Drew
Banned

Registered: 24th Nov 01
Location: County Durham
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9th Feb 04 at 23:06   View User's Profile U2U Member Reply With Quote

forgot ratios

4-2-1 or something like that paint - hardener - thinners (providing u get 2 pack)

as for tips - a hell of a lot of practise

[Edited on 09-02-2004 by Drew]
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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9th Feb 04 at 23:08   View User's Profile U2U Member Reply With Quote

dont spray the same area for too long, keep waving the gun and keep the spray mist as light as possible

after u use your pump and pack away, clean your airlines and paint hoses with a touch of thinners so it doesnt clump up inside and block them
Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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9th Feb 04 at 23:12   View User's Profile U2U Member Reply With Quote

shweet, can someone confirm the ratio mixes.

Im gonna spray my bonnett first, can someone tell me exactly what fluids i will need. Whats this Two Pack all about?
Drew
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Registered: 24th Nov 01
Location: County Durham
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9th Feb 04 at 23:15   View User's Profile U2U Member Reply With Quote

i cant remember exactly

but i think...

u can get cellolous (sp) which is 1 pack which u just add thinners)
or 2 pack stuff (which gives a better finish)

should be using 2 pack

any place that mixes paint to a certain colour will do 2 pack pain

2 pack = paint and hardener
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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9th Feb 04 at 23:18   View User's Profile U2U Member Reply With Quote

depends on the binder type of the paint, some are alkaline resistant and some are double bodied with a strong finishing paint film
Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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9th Feb 04 at 23:26   View User's Profile U2U Member Reply With Quote

Quesque tu les prends pour le petit dejuner??!!

What did you just say venom? im still learning. i think i understand the basis of two pack, basically has hardener already mixed with it and dries quicker and harder than normal cellulose based paints?!?
DAYZEE
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Registered: 13th Nov 00
Location: Stevenage, MR2 Turbo, 328i Coupe, CBR600F
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9th Feb 04 at 23:27   View User's Profile U2U Member Reply With Quote

If you are spraying 2 pack do it in a well vetilated area as it contains cyanide. A mask would also be a good idea.
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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9th Feb 04 at 23:29   View User's Profile U2U Member Reply With Quote

sorry mist, like drew said its all about practice, ive been spraying for 4 years and u learn little tricks as u go along, u just have to keep persueing it mate
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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9th Feb 04 at 23:31   View User's Profile U2U Member Reply With Quote

another thing is when u first get your pump out to start spraying release any pressure in the pump and airlines before u start, if u dont that pressure builds up and creates air pockets in the paint, then it wont cover aswell and thin it out a bit
Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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9th Feb 04 at 23:35   View User's Profile U2U Member Reply With Quote

Excellent, cheers guys, ill probably be doingg most of the spraying in my mates garage, i have my old work mask which should be alright as it protects against most gasses.
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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9th Feb 04 at 23:36   View User's Profile U2U Member Reply With Quote

has your mate got a big shell oven to bake the paint on with? flattens it all out
Red_SXi
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Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
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9th Feb 04 at 23:37   View User's Profile U2U Member Reply With Quote

2Pack paint is a ration of 2:1 (Paint and hardeners) and you can add upto 10% thinners
corsa_x_15
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Registered: 28th May 01
Location: !!! LuToN !!!
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10th Feb 04 at 08:57   View User's Profile U2U Member Reply With Quote

when sprayin keep at a 90 degrees angle to the panel, keep bout 6-8 inches away from the panel when sprayin'....and follow the panel
dont forget to trigger off wen u spray
u go------------------------------>trigger off
<---------------------pull trigger
trigger off------------------------------->

this is the spray pattern ^^^^^^^

do u get my diagram thing

*trigger* is on on the spray gun
Red_SXi
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Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
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10th Feb 04 at 09:04   View User's Profile U2U Member Reply With Quote

Note: Trigger is on teh gun, and is not a fictional character:


corsa_x_15
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Registered: 28th May 01
Location: !!! LuToN !!!
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10th Feb 04 at 09:08   View User's Profile U2U Member Reply With Quote

J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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10th Feb 04 at 20:38   View User's Profile U2U Member Reply With Quote

class
AdiSRI
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Registered: 1st May 02
Location: Berkshire
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10th Feb 04 at 20:54   View User's Profile U2U Member Reply With Quote

Yeah as said above 2 pac contains CYANIDE, i was strongly reccomended not to use it without full breathing apparatus or equivalent protection. Thus we did my m8s car in cellulose and its reasonably pants.
TBH cant reccomend doing it youself unless u have got / dont mind buying the necessary safety gear to use 2 pac.
Lynny
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Registered: 3rd Jan 03
Location: oop north! Where people talk properly
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10th Feb 04 at 20:56   View User's Profile U2U Member Reply With Quote

drew knows what hes doing (for once)!
Dave
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Registered: 26th Feb 01
Location: Lancs
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10th Feb 04 at 22:12   View User's Profile U2U Member Reply With Quote

I wouldn't touch isocyanide paints without extraction TBH, an old guy I know used it when it was first released without a mask not realising how dangerous it was. It serioulsy damaged his lungs and he died recently as a result of it. The guy who sprayed the car with him died much earlier too.

Stck to cellulose with a good rubber mask with correct filter on.
Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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11th Feb 04 at 10:10   View User's Profile U2U Member Reply With Quote

learn spraying cellulose paint.

there is also 3 settings on the spray gun, well there is on mine, one in for adjusting the cone, one is more how much air and the other is for how much paint.
depending on wat compressor etc your using i would start with the air fully out, the paint half out and the cone fully in.
do lots in primer first as its a lot easier to spray.
if you have bare metal then just spray a little bt on that first, then wait a few minutes before putting more on as this is the place its most likely to run.
prepare the old paint by using a grey scotchbrite and the 3m prep and blend liquid, then wash it off and wipe down the whole panel with thinnners.

 
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