#Fisheye paint defect how to
#Fisheye paint defect full

Small surface defects and light paint areas can be repaired using liquid touch-up paint, alone or after light sanding.

#Fisheye paint defect full

Be sure to apply the new coating to full specified film thickness to achieve the look and feel desired. However, if the part has been completely stripped, run it as you would a bare part with all washer stages operating. When recoating localized repaired areas, turn-off the active washer stages (wash, conversion, and seal) to prevent spotting, and use the rinse stages to remove the sanding dust and prepare the part for recoating. However, most people use thermal stripping (bake-off, burn-off, molten salt, etc.), as it is quick and cost effective.Īfter surface preparation, the next step is to recoat the part. Chemical stripping (hot or cold) can also be effective. Media blasting (plastic, glass bead, oxide, etc.) can be a fast way to remove the coating.

Defects that are too large for spot repair require complete stripping to remove the original coating.

Of course, if you are using rough or textured coatings this approach will not work and you will have to recoat the part to repair the defect. This method is preferable to recoating the entire part. Finish off the repair using automotive rubbing/polishing compound and wax using a variable speed polisher and wool bonnet. In this case, keeping the repair area as small as possible is best.

Small localized surface defects can be removed using wet sanding techniques with very fine (1000 to 2000 grit) sandpaper.

Start with 120 grit sandpaper and work towards finer grades until the surface is smooth to the touch. all require spot sanding to remove the surface defect and smooth the surrounding area to a feathered edge before repainting. Dirt, spits, seeds, bumps, craters, fisheyes, sags, mars, etc.Additionally, some formulas do not have good intercoat adhesion properties, requiring surface sanding before repainting the part. Check with your powder supplier to find out the recoatability of the formula you are using, as some formulas contain wax, Teflon, or other slip agents that make recoating difficult.

Light paint defects require no surface prep, except for recoatability issues with the original powder coating.Surface preparation procedures need to be matched to the specific coating defect. Finally, if the defect is related to the coating process (i.e., light paint, dirt, fisheye, crate, etc.), then proceed to the next steps: surface preparation and recoating. Send it back to fabrication for resolution. Next, if the defect is a substrate metal flaw or fabrication mistake (i.e., metal scratch, dent, missing weld, etc.), repainting it is unwise, as it will not correct the problem. First, if the defect is so severe that it cannot be corrected for a cost that is less than the scrap value of the part, you should toss it out without reservation.

#Fisheye paint defect how to

Here are a few simple things that you should know before you make this defect worse and end up scrapping the part.īefore you can begin to figure how to fix a defect, you first need to know what you are dealing with. No matter how well you control your powder coating process, you will undoubtedly have defects that need to be reworked.