I saw this on another website and thought i'd post this. Sorry if something like this has been posted before.
The key to successfully painting ATV and dirt bike plastics is proper preparation. Using these procedures, you will be able to prepare your ATV and dirt bike plastic for painting.
Step 1:
It goes without saying that the first step is to clean the plastic. Once this is done, sand the entire surface with 180 grit sandpaper. After fenders have been in the sun and are subjected to the elements, they tend to get a really thin "crust" on them. You need to remove the "crust" by sanding.
Step 2:
After sanding, scrub all the plastic with Scuff Magic and a red scuff pad. This will help to remove any water soluble contaminants and also help to remove any contaminants that may have been ground into the plastic from Step 1.
Step 3:
Sand again with 180 grit to remove any spots or "crust" that you missed in Step 1.
Step 4:
Sandblast everything with 80 grit aluminum oxide, OR just take some steel wool and go over it a few times with straight lines, than a circular motion to clear up the straight lines.
Step 5:
Clean the plastic with Super Clean plastic cleaner.
Step 6:
Apply 2 heavy coats of Plastic Magic. Be sure to allow first coat to flash off before applying the second coat. Allow Plastic Magic to dry completely.
Step 7:
Now apply Black Cat high-build waterborne primer surfacer. The high build will fill any sand scratches and sandblast pits. Allow the Black Cat to catalyze completely before the next step. While the Black Cat is sandable before it is fully catalyzed, it does not get maximum adhesion until it is fully catalyzed.
Step 8:
Because Black Cat is a high-build primer surfacer, it has somewhat of a orange peel finish. Sand the surface smooth with 320 grit paper. Black Cat sands nicely and easily.
Step 9:
Any low spots or imperfections can be filled with Putty Flex and sanded smooth before applying sealer.
Step 10:
Apply a sealer that, when applied, provides a barrier between the topcoat and repair materials and prevents the solvents in the topcoat from attacking the repair material.
Step 11:
Once the selaer dries, you can apply your basecoat and clear coat. Don't forget to add a flex additive to the topcoat. That's it!
The key to successfully painting ATV and dirt bike plastics is proper preparation. Using these procedures, you will be able to prepare your ATV and dirt bike plastic for painting.
Step 1:
It goes without saying that the first step is to clean the plastic. Once this is done, sand the entire surface with 180 grit sandpaper. After fenders have been in the sun and are subjected to the elements, they tend to get a really thin "crust" on them. You need to remove the "crust" by sanding.

Step 2:
After sanding, scrub all the plastic with Scuff Magic and a red scuff pad. This will help to remove any water soluble contaminants and also help to remove any contaminants that may have been ground into the plastic from Step 1.

Step 3:
Sand again with 180 grit to remove any spots or "crust" that you missed in Step 1.

Step 4:
Sandblast everything with 80 grit aluminum oxide, OR just take some steel wool and go over it a few times with straight lines, than a circular motion to clear up the straight lines.
Step 5:
Clean the plastic with Super Clean plastic cleaner.

Step 6:
Apply 2 heavy coats of Plastic Magic. Be sure to allow first coat to flash off before applying the second coat. Allow Plastic Magic to dry completely.

Step 7:
Now apply Black Cat high-build waterborne primer surfacer. The high build will fill any sand scratches and sandblast pits. Allow the Black Cat to catalyze completely before the next step. While the Black Cat is sandable before it is fully catalyzed, it does not get maximum adhesion until it is fully catalyzed.
Step 8:
Because Black Cat is a high-build primer surfacer, it has somewhat of a orange peel finish. Sand the surface smooth with 320 grit paper. Black Cat sands nicely and easily.

Step 9:
Any low spots or imperfections can be filled with Putty Flex and sanded smooth before applying sealer.
Step 10:
Apply a sealer that, when applied, provides a barrier between the topcoat and repair materials and prevents the solvents in the topcoat from attacking the repair material.

Step 11:
Once the selaer dries, you can apply your basecoat and clear coat. Don't forget to add a flex additive to the topcoat. That's it!
