Author | Topic |
Location: Melbourne
Registered: May 2002
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How to paint a car in acrylic
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Wed, 17 July 2002 15:04
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Man this thread has gone too far.
Materials will cost more than $200. So unless your mate owes you something or is doing it out of the goodness of his heart (i.e., a real mate) then forget about it.
Here's how to paint your car. Every car enthusiast has to do this at least once.
Go out and buy/borrow/rent yourself a gun and compressor and a good mask. 5-6 litres of PPG acrylic. 3 litres of undercoat. 15 litres of thinners. 1 litre of prep wash. 1 1/2Kg tin of best quality bog you can buy If any shallow dents (<.5mm use spray putty) Get four rolls of masking tape 1" and 2" and Saturdays age. Get say 8 sheets of 400, 6 sheets of 600 and 4 sheets of 800 wet&dry. I sand dry and wear a mask. Remove trim and all bits in the way of the surface. Mask up all windows, tyres etc. Using 400 and a block ( you can get ones that grip 1/3rd sheet of paper) but a cork one will do OK - sand down the existing surface - you only need to get through the gloss layer. Get a mate to help. Ensure you use a proper respirator (organic solvent + dust) Avoid touching the surface with your oily fingers. Fill dents with bog (any more than 1mm beat out). Before bog is too hard sand down to flat. Dry bog well use a bar radiator/blow heater. Don't spray with this on! The longer you dry the bog the better. Dust the whole lot - use a vacuume cleaner. Wash with prep wash if you want - otherwise use a rag with thinners and wipe whole surface gently. Cover the inside of your garage with polythene - make a tent around your car but leave one end open and a big flap at the other - got to get some air flow else you can die. If your satisfied with the surface its time for first undercoat. Say 60/40 undercoat thinners (it's on the side of the tin). On warm day (20 +) apply say 3 heavy coats, leave about 30 minutes before recoat . If you get runs, splatter whatever sand down gently, dust and respray. If your mate walks in with a smoke during spraying kiss your ass goodbye! Apply final 2 thinned out undercoats at 40/60 30/70. Surface should be firm and not too powedery. Use 800 and sand gently if necessary. Avoid touching. If you can leave the car now for a few days so and good. Leave a heater on in your garage. Best use an oil column heater (no sparks). Colour coats. Start heavy 70/30. Apply say 3 coats. Inspect. Any hairs and shit or places where the paint is pulling away, or sags runs etc can be sanded lightly and give a local quick spray. One more heavy coat. Now start with lighter coats say 50/50 down to 70/30 over say 7 - 10 coats. If you get overspray and powdery results/sags/run/insects etc you will need a light sand using 800. Dust well. Vacuume you workspace. The last coats consist mostly of thinners like 80%. You can mix in clear lacquer with colour for the last 4 coats (like 20 parts colour 80 clear working up to all clear). This is benfitial if you have a dark colour or are using metalics/pearl which is a bit of different story. For bold light colours, yellow, orange, white etc clear is a bit of a waste of time. Sure 20 coats of colour reduced to 100% clear, with a pinch of pearl will look deeper and radient) Remove tape gently. Once you are satisfied with your final coats leave the car for a full week in your warm garage. Get a hold of an electric buffer or be prepared to work up a sweat. Get a tin of PPG acrylic buffing compound. If using a buffer go real slow and light or risk going through your paint (this is a real bummer). Forget about buffing near ridges & edges. The idea is to get rid of any surface frosting and micro shit. Wash residual buffing compound off (most of it should be buffed of). You can use kerosene but was the car with a mild detergent soon after. The finish at this stage should be pretty good but buffing compound is a bit course. Don't wax yet. Leave the finish for a month or so. Get some medium and fine cutting compound. Cut at medium once/twice & polish off. Best not to use rotary tool or you get swirl marks. The aim is to remove any swirl marks from the coarse compound. Now finally cut/polish with fine compound. Really old blue jeans work well. You should have a high gloss now. Now you can hit the surface with a polish/wax e.g., polyglaze.
After doing all of this you will really have enjoyed yourself and will have learned a shit load and will respect spraypainters!. You will also notice that you freak out in carparks and take less chances on the road !
Last word - get a good mask and proper replacement cartridges (not expensive). Always ensure a gentle flow of fresh air.
Don't get the $200 spray job. The job above would cost $2000 - $4000 if done professionally.
Cheers David
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Acrylic Paint ??????
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manipulate | Mon, 15 July 2002 02:23 |
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manipulate | Wed, 17 July 2002 04:19 |
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manipulate | Wed, 17 July 2002 07:01 |
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TOY77 | Wed, 17 July 2002 08:13 |
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manipulate | Wed, 17 July 2002 12:04 |
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How to paint a car in acrylic
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Gased | Wed, 17 July 2002 15:04 |
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