Post by
stanklem »
https://forums.nicoclub.com/stanklem-u7698.html
Wed Sep 28, 2011 7:02 pm
Hi. Am painting my grille as I write. My car was bought used with a stainless billet grille that I detest. Frankly, it might look good painted black but I decided to install an OEM grillle and paint it black and smoke the emblem. Mustache is being painted white to match car.
As best I know you don't have to take off the bumper to replace the grille. There should be a few how-to articles on this site or elsewhere. Can provide a few pointers for painting.
1. Scrub and clean it with soap and hot water. Remove any/all grime.
2. Degrease the grille with paint thinner or similar. Soap and water will not remove all of the oils that may be present.
2a. You may wish to gently sand the grille with 400 sandpaper. This will promote adhesion.
3. Spray the grille with an adhesion promoter. I used Duplicolor. You will have to spray at weird angles and from the back to get all the surfaces.
4. Spray the grille with grey primer. Ditto the Duplicolor.
5. I sprayed four coats of Duplicolor matte black on mine. Had to do four coats to get all of the surfaces without any runs.
6. Then sprayed another four coats Duplicolor crystal clear. Same reasons.
7. Then wet sanded the grille with 1000 and 2000 paper. Followed up with rubbing compound and polish. Tested out an area on the reverse and got a nice deep mirror finish. If you go to the Duplicolor website they mention this.
Will post pics when done next week.
Am not sure how well the finish will hold up but, it can be easily touched up.
I have no idea how to get a decent matte black finish that will not mar or easily scratch. Went with the polished finish because it seemed to match my black tinted rear windows and trim and thought it looked good.
When spraying Duplicolor finish each step within an hour. The paint starts to set/cure quickly and Duplicolor recommends waiting a week before another coat can be applied. I had my grille in a store room and could smell the off-gassing for three days after it was sprayed. It was curing during this time. The curing makes the paint coat harder.