How to prep TPO for paint?????
05-03-2011, 09:56 PM
#1
How to prep TPO for paint?????
Need help.....want to know how to prep a TPO (Thermoplastic polyolefin) bumper for maximum adhesion?
1. wash item with a mild detergent
2. wet sand to my desired smoothness
3. spot putty a few gouges/fill, sand, smooth
4. wash item with a mild detergent
5. wash item with a wax and grease remover
6. apply Adhesion Promoter
7. apply primer
8. fix defects missed earlier that now show with a primer coat/this step would include another washing; wet sand to scuff the primer coat
9. apply color
10. apply clear
1. wash item with a mild detergent
2. wet sand to my desired smoothness
3. spot putty a few gouges/fill, sand, smooth
4. wash item with a mild detergent
5. wash item with a wax and grease remover
6. apply Adhesion Promoter
7. apply primer
8. fix defects missed earlier that now show with a primer coat/this step would include another washing; wet sand to scuff the primer coat
9. apply color
10. apply clear
Last edited by moregrip; 05-03-2011 at 10:14 PM.
05-03-2011, 10:10 PM
#2
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11 wet sand again if needed
12 buff/finish for the final time, wax.
Seems you gots a pretty good idea of what to do. Prep is key to painted, runs in paint and clear, can be dealt with after.. I would also add some type or get a paint made for bumpers( as it will have a flex additive, that will keep from flaking or cracking if flexed). You can X the first step, just start sanding.. Wet sanding will take longer then dry sanding, you do not want the surface totally smooth. It should be a little bit ruff, so the promoter has something to bite into..
I am prob leaving something out, but you seem to have it..
12 buff/finish for the final time, wax.
Seems you gots a pretty good idea of what to do. Prep is key to painted, runs in paint and clear, can be dealt with after.. I would also add some type or get a paint made for bumpers( as it will have a flex additive, that will keep from flaking or cracking if flexed). You can X the first step, just start sanding.. Wet sanding will take longer then dry sanding, you do not want the surface totally smooth. It should be a little bit ruff, so the promoter has something to bite into..
I am prob leaving something out, but you seem to have it..
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