It happens, paint wrinkling, paint webbing, spider veins, paint reactions. We'll show you how to repair chemical reactions and get your part painted right!
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0:00 Start
0:14 Intro
0:23 Paint Reaction
0:35 DA sanding
0:57 Process
1:33 technique
2:45 Chang out your pad
3:15 Sanding curves edges
5:43 Dry Sanding
7:38 Wet Sanding
9:10 Adding Primer
11:17 Final product
11:49 Outro
Thank you for watching our video and learning how to fix a paint reaction. In the video, I did mention that the primer or e-coat was bad on the part. To be a bit more specific, we spray a sealer or wet-primer coat over all of our parts. This is to help the paint adhere, provide a smooth finish, and prolong the life of the paint. Well, our painter sprayed a heavy coat on his first pass. Laid another heavy 2nd coat and let it flash for the normal amount of time. When he sprayed the base coat, the primer was not completely dry and caused a paint reaction. Because, the primer was not completely dry, the fumes from the primer were still lifting and could not release with the paint over causing the base to wrinkle. So, hopefully, you watched our previous videos on how to paint, but you want to lay down the coat very light on the first pass. The second coat should be medium to heavy.
TOOLS NEEDED:
For this job, you will need 320-600 grit sanding paper. You can do this by hand but it is much faster if you have a DA sander. The sand isn't necessary but it sure does help. You will also need the same grit paper for dry or wet sanding. You will also need a high-build primer to apply to the affected area.
PROCESS:
Thank you for watching our video on how to fix any paint reaction. We hope this is not a common occurrence when you paint but it happens now and again. First and foremost, you have to identify the problem. Our issue, as I explained above, was too much primer that didn't dry before the basecoat was applied. Without knowing what the cause is, you will just repeat the mistake. Second, you have to remove the affected area. We sanded the entire area with 400 grit sandpaper and used our DA sander to seep things up. You can dry sand it but it takes a very long time and your arm may fall off afterward. Make sure you keep the DA sander completely flat at all times and avoid small curved areas and body lines. You do not want to go down to the bare plastic. You wanted evenly remove the wrinkles, if not you will have to spend time adding primer and sanding the area to make it level again. You can cut into the bumper by holding the sander at an angle, but we do not recommend it. It causes more pressure or digging and increases the odds of burning through to the bare plastic. On the tough to reach edges or near body lines, you will just have to do it by hand. You can dry sand but the primer and paint will just cover your paper and dull it much quicker. The best method is to wet sand the area until it's smooth. The water will have the residue run down the bumper and no stick on your sanding paper. Once the area is flat and smooth, you will apply several coats of primer until the area is completely covered. We recommend laying down thin coats and letting each coat dry for 3-5 minutes. Keep a further distance away to make sure you do not lay it on too heavy. We applied about 5 coats to the point where it was very uniform. The paint reaction has been removed and the new layer of primer has been sprayed, you are all done! All that is left is to repaint the panel or part.
Please let us know if you have any questions about our process. We answer all of our comments and would be happy to make more videos on the subject.
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DISCLAIMER: While ReveMoto tries to make the information in this video as accurate as possible, we make no claims, promises, or guarantees about the accuracy, completeness, or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself (DIY) projects entail some risk. It is the sole responsibility of the viewer to assume this risk. ReveMoto is not responsible or liable for any loss, damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.
