R-M Procedure
Bumper Cover Preparation PUR or PP1. Pre-baking the bumper cover at 140° F for 45 minutes will improve adhesion properties.
2. Wash the bumper cover with soap and water.
3. Dry with paper towel and lint-free cloth.
4. Wash with R-M # 902 Plastic Cleaner to remove wax, silicone and contaminates. Dry with paper towel.
5. Scuff with Scotchbrite # 7447 (red) Ultrafine pad and rinse with RM # 909. Final Wipe Cleaner, dry with paper towel and use tack cloth prior to actual painting.
6. Spray 1 thin coat of R-M 864 adhesion promoter following label instructions and allow 15 to 20 minutes to dry. Do not sand R-M 864 Polypropylene Plastic Primer.
7. Spray 2 coats of Diamont Basecoat until hiding has been achieved with 5 minutes flash time between coats.
8. Allow 20 minutes flash time prior to clear coating.
9. Spray 2 to 3 coats of Diamont Clear DC88 or 89 / DH44 / 891 flex at 4:1:1 (or compliant clear for VOC regulated areas).
Allow 5 minutes flash time between coats. If baking, allow 15 minutes flash time before baking.
10. Allow to cure overnight or bake at 140° F for 30 minutes.