hey guys so i started painting the motorcycle yesterday and it occured to me when i came home from the bars that i only put 1 coat of primer on and it definately sat long enough for the primer to cure. do i need to wet sand it before i spray it with more coats of primer? how should i get the gas out of the tank so i can take the tank off? and the last question is do i need to sand the paint down to the metal on the tank and handle before priming?
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well i'm no expert by any means but i just finished painting my bike the other day. I only used one coat of primer before spraying the color on. It looks pretty good but I didn't sand the primer before color and it turned out with a few small bumps(still looks good just not perfect). So i'd say you would want to wet sand it before applying color just to be sure it's smooth but minus well between primers, it's not much more work.
you could sifen the tank but i just pulled the tank off to the side a little and pulled one of the tubes off and drained it through a funnel into a tank. As far as the tank it won't differ much from the fairings as long as you scuff it good the primer/paint will stick. The issue with this could be that most stickers are under the clear coat so you gotta get them off or there will be a rise in the final paint job. I am actually in the process of getting the tank done now and it was recomended to me to use aircraft paint stripper to take care of everything which will in turn take it down to bare metal. My case is a little diffrent cause I'm getting it powder coated so it needs to be bare metal anyways.
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You dont need to drain the tank to take it off . Just turn the fuel valve to off, remove the lines and pop it off. Its far easier to pour out the unused fuel and siphon out the rest if needed. As far as the paint....think of it like this..the better the prep. the better the finish. Yes, you can apply multi coats of primer b-4 wet sanding it. Just dont gob it on so that you have a ton of runs to rub out of it later. And be aware that alot of the newer paint products (automotive) will not grip well to enamel primers (rattle cans).. A rant I recieved from my painter as we picked out my colors.JokerThe newest addition to the Family!
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To drain the tank, get a longer hose, attached it to the petcock, and set the petcock to Prime. Tank drains.
If you still have paint and no bare metal or plastic, you don't need to prime. Just wetsand to rough up the paint a little bit and spray color. Of course, if you've got a dark color on currently and are putting on a light color, you may want to prime. But otherwise, no real need.
To strip the tank (if you really want to) aircraft stripper or a paint stripping disk on a drill.Pain is just weakness leaving the body.
-Unknown Author
The quarrels of lovers are the renewal of love.
-Terence
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Originally posted by jrap1243 View Posthey guys so i started painting the motorcycle yesterday and it occured to me when i came home from the bars that i only put 1 coat of primer on and it definately sat long enough for the primer to cure. do i need to wet sand it before i spray it with more coats of primer? how should i get the gas out of the tank so i can take the tank off? and the last question is do i need to sand the paint down to the metal on the tank and handle before priming?
2. You do not need to remove the gas out of the tank. The three setting on the tank are On, PRI, and RES. As long as it in not on "PRI" you will not loose gas.
3. If there is no damage to the existing coating, you will not need to remove the existing coating.Last edited by mrwhipper; 04-30-2009, 12:26 PM.
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if you feel you need to do something between primer coats, you can use a lil cheese cloth (tack rag) to remove the dusty over spray. But I really wouldnt reccomend a full wet sand till your happy with the amount of material youve got on your item. This way you are not removing the thin layers and taking it down to the paint over and over. As faras the tank they are correct about just scuffing it up real good to shoot.
Just one question and it may sound dumb ..but I gotta ask...Your not shooting this stuff on the bike are you?
Originally posted by ctandc View PostIf you're using regular rattle can primer, I wouldn't try wet sanding the primer.......that stuff will SOAK up water and it will swell.
Originally posted by brooder View PostTo drain the tank, get a longer hose, attached it to the petcock, and set the petcock to Prime. Tank drains.
If you still have paint and no bare metal or plastic, you don't need to prime. Just wetsand to rough up the paint a little bit and spray color. Of course, if you've got a dark color on currently and are putting on a light color, you may want to prime. But otherwise, no real need.
To strip the tank (if you really want to) aircraft stripper or a paint stripping disk on a drill.JokerThe newest addition to the Family!
sigpic
stop by the garage for a better look!
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I would Not suggest a sanding disk on the tank!! If your not used to it you will do way more harm then good making it wavey and warped from the inconsistant pressure placed on the disk! If you must remove the paint\decals go with the aircraft stripper then prime![/quote]
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bite the bullet and sand by hand.
1. sand to remove loos paint and clearcoat
2. bondo to remove deep scratches, dents and dings.
3. sand highly with at least 2000 grit primer to smoothe surface
4. prime with a high build primer. DO NOT CHEAP OUT ON YOUR PRIMER.
5. Wet sand the primer, i recommend 2500-3000 grit. do a good job on this step, cause any imperfections will show through the paint.
6. paint in a cleeeeean room. i didnt and had hair and dust stuck in my paint and had to redo it.
7. After a full cure, wetsand with 3000 grit. this will be very painful and if you do it right, will take a long *** time.
8. Cutpolish, wax.
9. sit in a lawnchair with a beer, staring at your masterpiece for hours on end, glaring hatefully at anyone who dares to look for imperfections.
this is presuming you want to avoid the orange peel look of course.charlie was a chemist, but charlie is no more. what charlie thought was h2o was h2so4
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Originally posted by Rangerx52 View Postbite the bullet and sand by hand.
1. sand to remove loos paint and clearcoat
2. bondo to remove deep scratches, dents and dings.
3. sand highly with at least 2000 grit primer to smoothe surface
4. prime with a high build primer. DO NOT CHEAP OUT ON YOUR PRIMER.
5. Wet sand the primer, i recommend 2500-3000 grit. do a good job on this step, cause any imperfections will show through the paint.
6. paint in a cleeeeean room. i didnt and had hair and dust stuck in my paint and had to redo it.
7. After a full cure, wetsand with 3000 grit. this will be very painful and if you do it right, will take a long *** time.
8. Cutpolish, wax.
9. sit in a lawnchair with a beer, staring at your masterpiece for hours on end, glaring hatefully at anyone who dares to look for imperfections.
this is presuming you want to avoid the orange peel look of course.My first bike: 2001 Suzuki GSX-F
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Originally posted by jrap1243 View Postdo i need to wet sand it before i spray it with more coats of primer?
the last question is do i need to sand the paint down to the metal on the tank and handle before priming?
No need to sand to metal and actually preferable not to. Sand with 400 then 600 to take the shine off the original paint making sure it is nice a dull, then prime or seal and shoot your base.2000 Katana 600
2011 Triumph Sprint GT
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"If the women don't find you handsome, they should at least find ya handy."
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Originally posted by wyzat520 View PostI agree with moth but you do not need to wetsand the primer with 2500-3000 it will actually do more harm.
Not to mention, if you dont wetsand the primer, but do wetsand the paint, you create uneven spots of thin paint that could show through later from cutpolishing.
what it all comes down to, is HOW fine of a finish you want. In my case, i went high gloss black, and black shows everythingcharlie was a chemist, but charlie is no more. what charlie thought was h2o was h2so4
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Originally posted by Rangerx52 View Postbite the bullet and sand by hand.
1. sand to remove loos paint and clearcoat
2. bondo to remove deep scratches, dents and dings.
3. sand highly with at least 2000 grit primer to smoothe surface
4. prime with a high build primer. DO NOT CHEAP OUT ON YOUR PRIMER.
5. Wet sand the primer, i recommend 2500-3000 grit. do a good job on this step, cause any imperfections will show through the paint.
6. paint in a cleeeeean room. i didnt and had hair and dust stuck in my paint and had to redo it.
7. After a full cure, wetsand with 3000 grit. this will be very painful and if you do it right, will take a long *** time.
8. Cutpolish, wax.
9. sit in a lawnchair with a beer, staring at your masterpiece for hours on end, glaring hatefully at anyone who dares to look for imperfections.
this is presuming you want to avoid the orange peel look of course.
How long is a full cure?
Thanks
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