I got a do-it-yourself view from House of Kolor and durning the tape I took a few noted and I was hoping you guys could look them over and pick it apart if needed?
AIR SYSTEM:
Using a 60 gallon 5 H.P. air compressor is a min. for a good booth. Having a 6" to 10"
long 500 P.S.I. flexible braided steel tube between the air compressor and the main lines
is a good idea sice the air tank does shake alot when turned on. Do not have a regulator
mount inline just after it comes from the tank, its a waste. It will be to much for it and
will most likely fail within 4 to 6 years. Having a shut off valve there is a great ideal so
the complete system does not have to be drained durning any normal maintenance that
is required. A 1-1/2" to 3/4" main is ideal, nothing smaller then 3/4" should be used. I
have been told not to use any type of plastic pipe should be used, galvanized steel is the
best since it does not rust. After the shut off valve have the steel line go straight up to
the top of the ceiling. As the main line moves away from the tank around the shop have
it slowly slope down hill away from the tank with a release valve on the end of the
system. That way any water or oil that does get trapped in the line does not go back
into the air tank and start to rust the bottom of the air tank.
An air dryer mounts at the beginning of the system just after the air compressor. This is
a great idea, however they are alot of money to buy and keep up. But they are ideal!
At every station or every outlet place a "T" there on the main. Have the "T" opening
point up instead of down, that way each outlet will pull air from the top of the main and
have a better chance of not removing water or oil at the location. Having the "T" there
should then go into a 1/2" feeder line also galvanized steel. Have a straight 90 degree
angle connect into another straight 90 degree angle that way it loops and points straight
down. Have the feeder tube also long as needed for that area. Also have a shut off at
each station /outlet for safety.
Before setting up the system plain ahead, plain for additional equipment they maybe
bought in the near future that may require an air supply or move an item that needs a air
supply away from an outlet. Keep the threads as clean as possible from the time they
are bought. When installing the system clean the threads with an acetone and then use a
vanish type sealer (gasoilia), let it set up for at least 24 hours.
SPRAY GUN:
I have been told to buy U.S.A., they are one of the last few things made here that are
still just made better than overseas. I was also told to buy the most expensive gun you
can afford. This was the last place to try and save money. Also try to buy production
style guns, they are made to be used.
1.) A gravity feed gun is great for metallic and pearls.
2.) A smaller gun with the triger on the top but larger than an air brush gun is a touch up
gun and is good for hard to reach areas.
3.) A Pressure pot gun is a larger can that can hook on a belt and has hoses coming off
to a smaller gun, this gun holds 2 quarts and is great for larger jobs.
4.) A standard style gun with the paint can on the bottom should be comfortable to
your hand. They are more popular with guys that have been painting for awhile.
5.) 1.4mm needle and nozzle is set for lighter coats such as high quality base or
clear-coat application. A 1.7mm needle and nozzle set is for heavier applications using
primers an dbody fillers
6.) Most new guns sold toady has a locking pressure regulator with a gauge.
MAINTAIN A GUN:
1.) Clean it very well, if done right you should be able to tell what color was last used.
Be sure the tips and under the cap has all build up removed. This maybe needed durning
a larger job.
2.) Leave a small amount of thinner in the can when the gun is being stored, it helps the
gaskets from drying up.
3.) When a good gun is bought it should come with a diagram, keep it to help when
rebuilding is needed or repairs are needed.
4.) Gun should be hung out of the way so it is not damaged. Be sure to take extra care
of your gun, don't bang it around or have any other air tools stored with it so a chance
of damage to the tip and cap does not happen.
SAFETY:
To start I will go from head to toe to make it easier.
Eye protection is important and if you wear eye glasses a full mask maybe better for
you. Otherwise, use a clear safety glasses that covers and are close to the face.
The one of the better masks on the market right now is a double charcoal filter with
pre-filter. This mask is good when using both lacquer and enamels. A prefilter is a small
pad that gets most of the larger over spray and dust and should be changed every full
paint job.
House of Kolor like TC-23
A paper suit is a good idea, there are no small pieces of fuzz to fall onto your work.
You don't ruin your our clothes and painting a car is hard work. You get hot and sweat
and most paper suits breath well to allow air in and out of the suit.
After the car is sanded and preped, you should not touch the car with your bare hands
or skin. Your skin puts off oils that will ruin all of your hard work. Use rubber gloves,
the kind doctors use, so they are tight and almost like extra skin, and you just throw
them away when done.
PREP:
First thing I have been told to NOT paint under 70 degrees. So paint in the winter
months are not easy if you can not keep the booth warm enough fo rthe full paint job.
The room temp needs to be at 70 degrees plus for at least 2 hours if not more so the
surface you are painting will be as warm as the booth air. Then keeping it warm durning
the shooting without a gas style heater "open flames" is not so easy if the booth is not
well insulated. The booth also needs to stay at the temp for 24 hours durning the curing
time of the paint.
Poor preparation can cause future topcoats to fail! Be sure to sand the original finish
well. Using House of Kolors KP-2CF or KP-21 catalyzed primer will give you a nice
start. I was told it will cover body work done and will fill in up to 80 grit scratches.
Before any sanding is done:
A) Use HOK's KC-10 wax and Grease remover to remove any tar, wax, or grease is
needed.
B) Grind away paint and primer in the area requiring body work.
C) Be sure your bare hands or skin never makes contact with the panels. Your skin puts
off a body oil. Keep a clean rag between you and the panel at all times.
D) Use power tools to get near the repaired areas. Then block sand, keep the block
front to rear, but crossing to prevent flat spots.
E) Allow proper cure times to prevent shinkage.
F) Final sand the primer with 320-400 grit sandpaper.
Before spraying primer wipe down the panel and then dry them as you move along.
Then use a tack cloth and wipe down all panels geting primer.
*When using House of Kolor only use House of Kolor products.
PRIMER:
When your prep work is completed and all repairs are done then your ready to start
with your primer. Don't ever think your coats of primer is a fix all. I have been told alot
of people leave pits and scratches thinking that the primer will fill those in, don't think
that way. When you start to prime your first couple of coats may fill in very small
scratches but never count on it. Try to be ahead of your self instead of tring to caught
up!
Before you start be sure the panels are all wiped down with a wet cloth and dry as you
move on, and again always use a tack cloth afterwards.
Wet the floor to help keep down dust and over spray does not stick to the floor. Don't
wet the car!
Most primers are a 2 part mix, like House of Kolor has a part A and a part B. 16 oz. of
each, mix well and use a filter/ screen when pouring it into the can. Let it set up for 30
mins. before shooting. The HOK primers are a 70% solid that will allow you to fill in
smaller scratches.
When mixing never use a cheap lacquer!
And a 10% reducer is good.
The first coat should be put on light so there is no worry of it running and making sure it
stick to the bare panel.
Apply 3 coats is about standard, the second should have alot of it covered.
Apply 2 extra coats over and near repaired areas.
When spraying a 50% over lap is best.
Lacquer primer and lacquer body fillers don't work well on bare metals.
* Keep the gun parallel when spraying! Otherwise you will make lines in the paint due to
the heavier areas you will leave. Also, be sure to do straight lines, never follow the
body lines.
When you are start spraying, start on the middle of the roof, go front to back and then
back to front with a 50% over lap. leave the midle light not to apply to much when you
restart on the over side. From the middle work back toward you, spray to the bottom
of the door window. Go around to the otherside and do the same. Then start on the
hood, start in the middle "light" work back to the end of the hood, do the other side.
Then do the front bumper move to the rear trunk lid then do the rear bumper.
When doing the sides walk the car, its harder but it lays nicer and a lot more even. Just
be sure to go slow and keep the gun even. Also keep your knees bent it helps your hand
from bouncing.
Always allow flash time between coats, a good flash time is about 20 mins.
After you have laid the coats for primer and the car is covered evenly, be sure to light
spots or missed areas are on the car anywhere. Using a different color "lighter then you
main color" makes it user to see what was sprayed and what may have been missed.
Example: when you use a matching color primer its hard to be sure what has been
sprayed when covering with the same color.
After the primer is done, wet sand the primer with 320-400 grit sandpaper.
DO NOT sand the primer coats in your booth!
Wash the car down with a wet cloth and dry as you move along. Then use a tack cloth
and wipe down the entire car.
A.) Don't use to much water, you have the risk of water getting into small areas and not
getting it completely dried before moving on to the next step.
B.) When you open the tack cloth open it, unfold it and let set for 15 to 20 mins.
C.) Be sure you don't have bleeding or staining. If you do a sealer maybe needed!
BASE:
When using candy type colors a base is needed between the primer and the candy
color, the base is what gives the color or the shade is frm the base. A darker base gives
alot darker candy color, a candy is somewhat transparent.
Again wet the floor to help keep dust down.
Strain the material as it goes into the gun can after mixing.
Be sure to mix the base just as its needed, follow the label instructions!
Most bases are a 2 part material and 1 part reducer. Always mix well and allow its
setup time.
Do not use full trigger pull, keep the gun 6" to 8" away, apply using a 50% over lap.
If you allow the primer to completely dry let it dry for 24 hours before wet sanding and
moving on.
Your first coat should be light and a dry coat to help it not run.
PAINT:
After the base is laid down move onto the color or candy within 30 to 40 mins.
Allowing the flash time but not allowing it to dry. If it does dry allow it to completely
dry and set up for 24 hours, wet sand, wash and dry, then clean with a tack cloth again.
Otherwise, start with a light dry coat with a 75% over lap.
Have the gun fan wide open.
The first coat, "put the trigger all the way in and then turn it out 1-1/2 to 2 turns". Each
coat give it a small turn "1/2 to 1" turn depending on the gun to allow more material to
come out as you move along on the next coat.
A urethane enamel is the best for when spraying candy colors.
Again be sure the center is light so when you restart on the other side so its not to build
up in the middle.
When spraying candy colors:
A.) DO NOT arch, be sure to reach to keep your lines straight!
B.) DO NOT watch the gun as you are painting, painting is a hand-eye operation! Candy
color must stay straight lined!
C.) DO NOT follow body lines, just make straight lines---PERIOD!!!
D.) Keep your knees bent, it help you not bounce your hand.
E.) Allow flash time between coats.
The reducer you use will help you or go against you, they have fast, med. or slow
drying reducers on the market.
5 coats of candy is about right, 3 coats min., just start with a slow dry coat so it
doesn't run. when you think you have it all covered do one extra coat to be sure.
CLEAR:
DO NOT WET SAND BETWEEN THE COLOR COATS AND THE CLEAR COATS
Again wipe down the car with a damp cloth and dry as you move along, then use a tack
cloth to wipe down all of the areas getting paint. Do not ever allow bare skin to touch
the surface your painting. Use rubber medical gloves.
*remask the car before you move on, helps keep dust down.
Then you can start to add your clear. Be sure it is mixed well and allowed for any set up
time needed.
Apply the clear the same way you applied the other materials. Keep the gun about 6" to
8" away from the panel, keep the gun parallel with the panel you are shooting at all
times. Use a 50% over lap.
Between 3 to 5 coats are fine, I have heard of guys appling more thinking it gives a
deeper shine. I was told different.
FINISH:
Let paint set up for over 24 hours at 70 degrees or more.
Balsa wood is soft and will bend nice to the curves of the body whenyou wet sand.
Always wet sand the clear to help remove dust parts and any lint that has drifted on to
the paint.
When you wet sand do not cross from one panel to the other, do them each at one time
to help not burn corners and go through material.
Wet sand with 1500 grit and a small amount of Ivory liquid.
Allow sand paper to soak in water for 15 to 20 mins.
Buff with a liquid buffer compound first.
McGuires #5 for the second.
Always change pads between compounds.
------------------
Bobby from NW Indiana
93 Northstar and 5 speed Getrag
219customs@verizon.net
My 86 GT build thread
MY 88 Northstar build thread
[This message has been edited by GSXRBOBBY (edited 01-11-2005).]