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wet sanding and buffing

 
  #1  
Old 02-28-2014, 01:48 PM
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Default wet sanding and buffing

there are many different times car can benefit from a wet sand and buff. a paint that has a lot of orange peel (texture similar to the peel of a a orange) very heavy oxidation. heavy scratches or going for a show shine on a new paint job. or remove light dust that may have landed on wet paint on a paint job.

even a good paint job will have a small amount of orange peel a bad paint job may have a lot of orange peel runs ect.

factory paint jobs tend to be thinner and i typically wont try wet sanding a factory paint job. use a lot of caution if you are going to try this on a factory paint job.

a repainted car, the paint will have be sprayed by hand and tend to be thicker than a factory paint job

any missing paint or peeled clear coat can not be fixed by this method. you are looking at needing a re-paint of this type of problem.

I will normally pick what looks like the worst spot and do a small section a few inches in diam to test if the process will correct your problem. doing a small section you can go threw the steps very quickly and get a idea of what the results will look like.

during this process keep your distance from raised edges high spots seams ect. paint tends to be much thinner in these places and you can easily go threw the paint. if you must go over these places only use the highest grit papers and buff by hand or you will blow threw the paint.

if you don't have a good power buffer this entire process can be done by hand but a good buffer will save you a ton of work. well worth the money to buy a good variable speed buffer

step #1 wash your car. you want to make sure its clean with no dirt or grit on the car

step #2 have your materials ready you will need a clean bucket or container filled with warm soapy water you need 1000 grit sand paper followed by 1500 and 2000 grits a wool buffing pad and a foam buffing pad rubbing compound polishing compound clean dry rags and the wax of your choice.

step #3 working in small area's i typically do one panel at a time. splitting large panels such as a hood into multiple sections. start by taking a sponge with warm soapy water and wet the area you are going to work on. wet your 1000 grit paper and start sanding the panel by hand you will feel as the paint starts to smooth out rinse your work area and sand paper frequently as you move over the panel once you have done the whole panel clean it and dry it. the panel should have a light milky dull fairly uniform collor to it, there may still be some shiny in the lowest spots of the orange peel or roughness. this step is removing the heavy imprefections in the paint.

step 4 repeat step 3 with 1500 grit paper

step 5 repeat step 4 with 2000 grit paper at this point you should be seeing a dull gloss over the panel that is uniform and clean

step 6 this is where your paint really starts coming to life. take your buffer with your wool pad and spread a little rubbing compound on the panel and rub your buffing pad into the compound. starting at a low speed start buffing out the panel the milky appearance should go away and start getting a nice shine on the panel. remembering to keep your distance from seams ridges and body lines as your buffer can blow threw the paint in these this high contact places. do these places by hand with some rubbing compound and a rag.

step 7 after buffing thoroughly clean and inspect the surface

step 8 repeat step 6 with your polishing compound and a foam wheel your paint should really have a nice pop at this point

step 9 apply a sealer wax and your done

here are some pictures i didn't take any pictures threw the sanding process but this was a very amateur single stage re-paint done by someone before i owned it. very heavy orange peel and other paint flaws, this was also a single stage paint not a base clear.

before



after



progress









the trunk was not salvageable the paint was too thin to be able to save so i did have to re-paint the trunk lid after the paint has some time to cure ill wet sand and buff it out as well





here is some pictures of reviving a heavily oxidized paint on a different vehicle

test spot



before



during




after

 
Attached Thumbnails wet sanding and buffing-2014-02-07163634_zpsddfa0b10.jpg   wet sanding and buffing-2014-02-21165557_zpsf1f1e421.jpg   wet sanding and buffing-2014-02-21155257_zpsb9b4ca25.jpg   wet sanding and buffing-2014-02-22124218_zpsebf9cf0c.jpg   wet sanding and buffing-2014-02-07163608_zps1f726b90.jpg  

wet sanding and buffing-2014-02-22134650_zpscf84ea49.jpg   wet sanding and buffing-2014-02-28113845_zpse4acea25.jpg   wet sanding and buffing-16f8a8c7-b507-4f89-a4ca-0d7100de0371_zpsbfafe653.jpg   wet sanding and buffing-2013-12-15132156_zps4745a300.jpg   wet sanding and buffing-2013-12-14102721_zpse9d57d3e.jpg  

wet sanding and buffing-2013-12-16112258_zps1372ac91.jpg   wet sanding and buffing-2013-12-16125106_zps6424fbdb.jpg  
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BigBossRadio (03-28-2014), guy (05-09-2016)
  #2  
Old 03-06-2014, 01:02 PM
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i wet sanded and buffed out my trunk today there was some orange peel and a little dust that had landed in the wet paint

i didn't make it perfect because the rest of the car is not perfect but

starting with 1500 then 2000 and then compounds and polishes on a rotary



1500 wet


2000 wet



polished out just the first part to show the difference if you look at the reflection of the roof in the trunk you can see the difference normaly i would wet sand the entire panel out before buffing



 
Attached Thumbnails wet sanding and buffing-2014-03-06101600_zpsae039fcf.jpg   wet sanding and buffing-2014-03-06101608_zpsebac9495.jpg   wet sanding and buffing-2014-03-06102215_zps4fe29c84.jpg   wet sanding and buffing-2014-03-06103421_zpsae46a72a.jpg   wet sanding and buffing-2014-03-06113154_zps19dd2b6d.jpg  


Last edited by Ezrider; 03-06-2014 at 01:05 PM.
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BigBossRadio (03-28-2014)
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Old 03-06-2014, 01:12 PM
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a few other tips is when doing your test patch always start at a higher grit than what you think you will need you can drop down and come back up if you need to but this process is removing paint you don't want to remove more than you need to. when removing a small spot of inprefections i almost always use only 2000 grit, it may take a little longer but when just doing a small spot there is not really much reason to go any more aggressive with it

also if you do no have a rotary buffer i would go to a even high grit before buffing out
 

Last edited by Ezrider; 03-06-2014 at 01:16 PM.
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  #4  
Old 03-28-2014, 08:32 AM
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Hi Guys
Thanks for all those great tips, I'm going to use them this weekend.... I like the fact that you address the "single stage" paint issue..... It happens

BigBossRadio in Dallas TX
 
Attached Thumbnails wet sanding and buffing-p1030610.jpg   wet sanding and buffing-p1030606.jpg  
 
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