How to Retexture Bumper Covers

How to Retexture Bumper Covers


In this video we will show the full procedure to refinish this textured area on the bottom of this Mazda bumper.
These areas are prone to get road rash and
scratches.
This bumper had a small tear which had to
be welded.
Clean the area to be refinished with 1000
Super Clean or 1001 Eco Clean plastic cleaner.
Spray a heavy wet coat, then wipe dry with
a clean, dry paper towel.
The “road rash” and deep scratches are first
sanded smooth with 80 grit sandpaper in a DA sander.
Follow up with 180 grit paper where you had
sanded with the 80 grit to remove the deep swirl marks.
Finally sand the entire textured area with
320 grit sandpaper.
This will increase the bite that the primer
will have to the surface.
It is not necessary to sand all of the texture
off; you just want to make it look dull.
Blow the plastic dust free with clean, dry
compressed air.
We are going to apply some filler to the area
around the weld, so spray some 1050 Plastic
Magic adhesion promoter in this area to help
the filler to stick.
Let it flash off for about 10 minutes.
Mix the 2000 Flex Filler epoxy filler in a
1 to 1 ratio on a mixing board.
Apply the filler over the damaged area.
Let the filler cure as long as possible for
best featheredge.
Sand first with 80 grit in a DA to knock the
filler down.
When you get close to the final profile, switch
to 80 grit in a sanding block.
Avoid using the coarse sandpaper along the
body line; you will profile the body line
later with finer sandpaper.
Block with 180 grit paper to do the final
profiling.
Hand sand with 180 to get the final profile
on the body line.
Finally, DA with 320 grit overall again to
blend the repair area.
Make sure there are no shiny spots on the
textured area.
Blow the dust off again, then apply 1050 Plastic
Magic adhesion promoter overall before spraying
on the primer.
Apply a flexible waterborne primer surfacer, such as our 3043 All Seasons Black Jack to the textured area.
Spray one medium wet coat at first, then let
it dry.
After the first coat of primer, you will be
able to see some of the 80 grit fuzz and swirl
marks in the repair area.
Sand these down and blend them using 320 grit
paper.
Sand overall and look for any remaining small
scratches.
Apply another medium wet coat of paint over
the repair area alone.
Use spot putty to fill any minor imperfections.
Sand the spot putty and prepare for a final
coat of primer.
Spray a final coat of waterborne primer surfacer
over the entire area to be retextured.
After it dries, scuff overall with a red pad.
Blow dust free.
We are using 3803 Flextex VT to retexture
this area.
The Flextex can be reduced with lacquer thinner
to fine tune the size of the grain.
Sprayed without reduction, the material is thick
and provides a coarse texture.
Cut the material 4-to-1 with lacquer thinner
and it will give a medium texture.
Cut it 2-to-1 with laxquer thinner and it will give
you a fine texture.
In this case, we cut the Flextex 4-to-1 and
are spraying with a 1.8 mm primer gun.
Apply one light coat overall first.
Note how far the gun is away from the work.
You want to “splatter” the paint on, not flow
it out.
Keep the gun moving at a steady pace and try
to get an even coating.
Let the first coat flash for about five minutes,
then repeat the process one or two more times
until you are satisfied with the appearance
of the texture.
Flextex may be left as is for a glossy black
texture.
To match the original OEM color and gloss,
use 3700-series Bumper & Cladding Color Coat.

2 Replies to “How to Retexture Bumper Covers”

  1. In what alien world would all this work be cheaper than just replacing the damaged trim? I know for sure that I won't ask under $250 for all that work.

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