Paint Applications 101 ask your paint questions here
#1
Posted 09 March 2009 - 07:57 PM
in this write up im gonna touch base on paint applications , procedures , products and tips .
your prep work .
your prep work is the base of your finish . your finish will look no better then your surface preperation . im gonna walk you through a recent paint job i did on a jeep .
first i started by washing down my jeep body with ( T0015 ) surface prep wash . works great for removing contaminents then i follow up with a damp wet rag and allow to air dry .
next i begin my sanding work the types of paper used depends on the surface being sanded . i like to begin with (280 grit ) followed by ( 320 grit ) . now that my surface has been sanded i am ready to apply the primer coat . depending on the type of primer you are using always follow mixing instructions .
now after sanding is complete i wipe the surface down with water allow to air dry then tack the surface clean . in this application i am using a white eurathane primer coat .
after mixing i will allow the primer to set on the table while i get my gun preped for the application usually takes about 10 -15 minutes . is best to allow the primer to mix well with it components and reducer .
after suiting up i am using my binks 2001 gun for this application with my 2.0 a.k.a. 256 tip. which allows a full flow of fluid at 40 psi fed to the pot and 10 psi at the gun tip .
starting at the right fender always working from bottom up - ( never top down ) i begin my 1st pass . working my way down the drivers side of the jeep and finishing at the hood .
now my hand stays between 13-16 inches off the surface at all times with my fan spread set at 3" at the tip with a full 10 -12inch spread .which allows me to cover more area at 1 time .
after allowing a 15 minute flash in between coats i come back and apply my 2nd finish coat . at this point i increase the fluid flow just a touch and lower my air pressue to the pot by 10psi .
because i want a heavier coat at this point so i move my hand closer to the surface by 4 inches . following steps above i work from bottom to top and finishing up on hood .
next . after allowing primer to cure fully i begin the final sand work by wet sanding the primer coat at this point with 400 wet dry paper
(Tip:) wet sanding your primer coat by hand will always produce a smoother finish then dry sanding and doesnt really take that much effort . also while your sanding your actually cleaning the surface at the same time .
now -- my jeep is primed , wet sanded and washed down, recovered and ready for the finish .
im gonna be using a base-coat clear coat finish on my rig .
following the same mixing procedure as the primer coat i allow the paint to set on the table after i mix it for the 10-15 minutes .
now im ready to paint . i do 1 final pass of cleaning , i use the T115 again and wipe the surface down followed by a wet rag and dry rag
(Tip:) always follow up with a dry rag at this point to eliminate any rags mark .
now i do 1 final tack rag pass and im ready to go .
( tip i have changed my gun tip nozzle to 1.7 tip a.k.a.165 tip
starting at the drivers side front fender i begin with the top to bottom passes moving down the side of the jeep following the coutours of the body i apply my 1st pass of top coat . now since this type of paint requires clear to make it glossy it goes on flat so i layer it on in passes like mowing the lawn .
once i have applied my base i allow to flash 15 minutes between coats and the last coat i allow to flash a full half hour .
now on to the clear finish .
( tip:) with clear top coats you can add things like metal flakes and effects if you wish to enhance your finish . but to spray metal flake you will have to use a larger tip and higher air pressure . to do my standard clear application i am using my 1.7mm tip on the gun
following the same pattern i painted i apply the clear starting from top to bottom i follow through with the clear in an even pattern not trying to cover so much at 1 time . clear should be applied in 3 coats aprox. 2 mils thick at higher air psi then paint i like about 15-20 psi at the gun tip at this point and 45-60 psi at the gun feed note:im using a pressure pot ......and while applying the clear i keep my hand off the surface atleast 13 inches at all times .
( tip:) while paint and clear applications some painters like the crisscross method which works great for full even coverage but this method should be left to the pros
because it is very easy to over load and run the clear .....( hence the feel i spoke about on the other tread . )
some issues you may encounter when applying clear are as follows :
clear to dry ...Cause :your hand is to far away solution : adjust your air flow lower raise your fluid out put and move a bit closer and slow down some .
clear has orange peel effect .( very common )...cause : you are applying the clear to heavy and your air is to low solution : adjust your air higher and lower your fluid out put .
now my job is complete and i allow clear to cure fully over night .
now some more tips .
a. you can never clean your surface to much ( more is better )
b. never lean into your job per-say back off a bit move that hand back .
c. never-ever try to cover in the first coat you will run the paint every time .
d.( lacquer -thinner ) is NOT a surface cleaner !!! it is exactly what the name implies it is a paint thinner and wiping your paint with it thinking you are cleaning ,you are really weakining your base .
e. resperators are your friends USE THEM .
f. do not get impatient !! take your time . time is good
most people on the tread will probably never experience the industrial use products i have used as a painter and detailer of 20 + years and i have used so many different products and tips etc .. it is impossible to address them all here
so i hope the above walk through so to speak helps out a bit ..................and i am open to feild any questions you may have or would like me to address about your paint projects .
i am also very exp in body repairs so i can feild questions about products and tips there also .
#2
Posted 09 March 2009 - 09:09 PM
#3
Posted 10 March 2009 - 04:00 AM
TranyDoctor, on Mar 9 2009, 10:09 PM, said:
well for me i like to change my tips for the prefered application of each product . smaller tip for finer material applications and larger tips for epoxy primers high builds etc.
now with metallics and clear that is a larger tip application due to the metal flake . air higher air pressure the problem many people will face with metallics ic ( you ) have ZERO control of the flake itself just the clear its best that the applicator keep an even wet coat and let the flake flow properly.
#4
Posted 10 March 2009 - 05:56 AM
Skinner1, on Mar 10 2009, 04:00 AM, said:
now with metallics and clear that is a larger tip application due to the metal flake . air higher air pressure the problem many people will face with metallics ic ( you ) have ZERO control of the flake itself just the clear its best that the applicator keep an even wet coat and let the flake flow properly.
using a smaller tip for metallic applications will cause clogging .
#5
Posted 10 March 2009 - 11:34 AM
#6
Posted 10 March 2009 - 11:46 AM
superdave1984, on Mar 10 2009, 11:34 AM, said:
the base coat is very tricky because it is not glossy and fools many people because they are tricked into beleiving that since its flat looking its not enough
when applying base coat you want to lay it on in even coats but make sure you do get proper coverage because you will see light spots when you apply the clear dont try to pound it on take your time and keep 12-15 inches off the surface .
you do not sand the base coat before the application of the clear .it is already formulated to accept the clear .so yes ( Bad idea )
#7
Posted 10 March 2009 - 01:41 PM
So I would paint the entire truck white, then mask and paint the red, then mask and paint the black correct?
#8
Posted 10 March 2009 - 01:50 PM
when laying out your stripe use 3m scotch fine line tape its on a roll and it leaves a very fine line .
#9
Posted 14 March 2009 - 10:44 AM
1) Watch your spray suit and hoses when you lean in to paint the middle parts of the vehicle. Many a paint job has been ruined by dragging the hose or letting your saggy, baggy shoot suit get into the wet paint.
2) "Lacquer Thinner" isn't. Any reducer good enough to thin real lacquer generally says so on the can and is very expensive. Generic lacquer thinner usually costs under ten dollars a gallon, is full of water and recycled solvents, and isn't good for anything other than cleaning equipment after use. Keep it around for flushing out your pressure pots, hoses, and guns, but please don't ever wipe down a vehicle with a lacquer thinner-soaked rag and tell me it's clean enough to paint. I know you touched on this, but I just wanted to make it clearer.
#10
Posted 14 March 2009 - 01:07 PM
the first time i experienced lacquer thinner years and years ago when i was 14 the stuff was so pure it would burn the flesh off ya pure thinner no additives .
as for hoses and stuff ....i use the over the shoulder down the body method most painters do and hold the feed line behind the body with the free hand while leaning in and over your paint project .
#11
Posted 15 March 2009 - 12:11 AM
#12
Posted 19 March 2009 - 02:44 PM
#13
Posted 19 March 2009 - 02:52 PM
superdave1984, on Mar 19 2009, 02:44 PM, said:
lol toss it in the garbage and buy another 1 , there is not a paint product on the market today that will adhere to chrome . you might find something for the short term but it will peel count on that .
reason : true chrome is a non abrasive ,non pouris surface .
#15
Posted 19 March 2009 - 04:11 PM
sure if its a real killer bumper or something worth holding onto and puttin the time into ..if not trade it ,pitch it ,and get another .
#16
Posted 13 April 2009 - 08:56 PM
I would like to clean the 8 so I can shoot it (see the build in the vintage forum, I sanded it and need to re-sand) this week w/the red oxide. It's been a looooooooonnnng time since I painted. I need to pick up some fish eye as well. I know I have to tack it off b-4 I shoot or was that in the old days.
Thanks,
Link to post 107
http://jeeptalk.net/index.php?showtopic=44...mp;#entry115822
I'm calling the U-Pol company tomorrow for their tintable raptor bed-liner spray. Hopefully I can use the Gillespie OD to tint, I'm gonna ask.
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
Support the Central Florida Bible Camp for kids
#17
Posted 14 April 2009 - 03:27 AM
1. denatured alcohol = so so
2. T115 prep- solvent = excellent
#19
Posted 14 April 2009 - 10:11 PM
P.S. After I prime the whole vehicle I should WET sand it correct. Been a long time.
P.S.S. How many OZ of reducer to a Qt or should I look on the label
#20
Posted 15 April 2009 - 05:16 AM
2. yes if you wet sand the primer with 400 W/D it will give you a nicer finish .
3. always follow your label instructions .only experienced painters should mix paint by eye .
#21
Posted 15 April 2009 - 06:15 AM
Quote
experienced? you must first do it to get experience.
skinner i camouflaged one of the toys recently. i have in the past used rattle can clear to coat over the camo. works good for about 1-2 years then the clear wears away. is there a safe clear to put over spray paint? something that lasts but isnt too hot.
.................97 s-10....................................79 cj-5........................................03 wj......................................67 cj5...................................87 samurai..........
#22
Posted 15 April 2009 - 08:03 AM
#23
Posted 15 April 2009 - 08:41 AM
soflmuddin, on Apr 15 2009, 07:15 AM, said:
skinner i camouflaged one of the toys recently. i have in the past used rattle can clear to coat over the camo. works good for about 1-2 years then the clear wears away. is there a safe clear to put over spray paint? something that lasts but isnt too hot.
if you are using an enamel base paint ....basic imron all-purpose clear can be used as a good seleant .
what you can also do is spray a test panel and see what works best with certain paints . i do know imron clear will burn and bubble certain lacquer finishes also there are a few all - purpose automotive clears that can be used .
#24
Posted 15 April 2009 - 09:15 AM
Rollbar, on Apr 15 2009, 09:03 AM, said:
some times we use tranny fluid as a fish - eye prevenative .
#25
Posted 15 April 2009 - 09:29 AM
Skinner1, on Apr 15 2009, 10:15 AM, said:
Seems like it would put an oil slick in the finish.
Here is what I will be using. I was going to go w/Dave's paint but can't spend the $ right now. Looking for work.
I recieved this from Midwest Military in '06
It's Gelespie paint 23070 OD
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
Support the Central Florida Bible Camp for kids
#26
Posted 15 April 2009 - 09:46 AM
you would be surprised how great marine style products perform on jeeps due to the high abuse levels .
that por 15 is just like rust-lock just alittle thinner
#27
Posted 15 April 2009 - 01:21 PM
OK, it doesn't say how much to reduce it so I will type out the label.
1. How much should I reduce per quart? I'll reduce it right in the gun. (one qt for how many oz of reducer & fish-eye). I use to just use a cap full of fish-eye & call it even The label doesn't say or i cant read it's terminology.
Below is the label off the OD, it is the same info for the Red Oxide.
For FULL view go here if U can't read it---> http://www.street2mu...100_1944?full=1
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
Support the Central Florida Bible Camp for kids
#28
Posted 15 April 2009 - 02:12 PM
is that already a premix enamel or is it 3 part ....paint ...catalyst ....reducer .
sir a word of advice while using XYLENE . use caution with this product in some instances we in the paint industry try to stay away from that item its bad news .
#29
Posted 15 April 2009 - 02:31 PM
Skinner1, on Apr 15 2009, 03:12 PM, said:
OK
Quote
I have no Idea. The label doesn't say or I'm a moe-ron
Quote
Elaborate, venting?
'48 Willys; '74CJ5; '80CJ7; '84 CJ8; '86 CJ7
*Who Needs A Stinking Manual When You Have A Fat Wallet For Tech Support!*
*What man is a man who does not make the world better*
Support the Central Florida Bible Camp for kids
#30
Posted 15 April 2009 - 06:02 PM