California Department of Transportation
 

C1 - PPG INDUSTRIES PAINT PROCESS SPECIFICATION

Appendix C1

This Bulletin provides the maintenance painter with the proper procedures to be followed when painting Caltrans vehicles and equipment with PPG’s Delfleet ® Evolution product system. These procedures must be followed to ensure the proper adhesion of paint. Use the following steps in conjunction with the correct PPG Product Information Bulletin.

  1. Initial Cleaning and preparation
  • Power wash the entire unit off and dry
  • Air blow all surfaces completely
  • Refinish area to be completely sanded using 220 grit dry sandpaper.
  • Tape off unit
  • Clean areas to be painted with PPG’s Delta ®, DRS 438 or Specialty Performance Product Cleaner SX1005. Refer to Bulletins FL-100 or PD-733 for additional information.
  • Move to Primer Application

2.0 Body Work (If Needed)

  • Apply premium plastic body filler to needed areas
  • Sand filler areas with 80 grit dry sandpaper
  • Fill pinholes with a premium 2-component glazing putty.
  • Sand glazed areas with 220 grit sandpaper
  • Blow of vehicle/equipment
  • Clean areas to be painted with PPG’s Delta ®, DRS 438 or Specialty Performance Product Cleaner SX1005. Refer to Bulletins FL-100 or PD-733 for additional information.

 

3.0 Primer Application

 

 

F3970 Delfleet ® Evolution 2.1 VOC Ultra High Solids Primer

 

 

Mixing Ratio:

3 F3970

1 F3971

6 Oz of F3400/F3405 per RTS gallon

10% of F3385 (Optional)

Pot Life @ 70º / 50% RH

1 ½ - 2 hours

Number Of Coats:


1 - 3

Total Film Build

Wet

Dry

 

Minimum

2.3 mils.

1.5 mil.

Maximum

6.1 mils.

4 mils.

F3950 Delfleet ® Evolution 3.5 VOC High Solids Epoxy Primer

Mixing Ratio:

3 F3950

1 F3951
10% F3385 (Optional)

Pot Life @ 70º / 50% RH

4 hours

(High heat and humidity will shorten pot life)

Number Of Coats:

1 – 2

Allow 5 – 10 minutes between coats

Total Film Build

Wet

Dry

 

Minimum

3 mils.

1.5 mil.

 

Maximum

8 mils.

4 mils.

 

F3950 should be applied at approximately 1.5-2.0 mils DFT per coat

 

  • Blow off unit using clean white cloths in the process
  • Tack of unit
  • Mix Topcoat to specifications refer to Product Bulletins DFT-003 or DFT-064
  • Apply color while maintaining a safe gun distance of 10 – 12 inches
  • Allow 10 minute flash prior to force drying
  • Force dry 30 minutes @ 140° F.

FDGU Delfleet ® Evolution 2.8 VOC High Solids Polyurethane Enamel

Mixing Ratio:

3 FDGU

1 F3260
6 oz of F3400/F3405/F3410 per RTS Gallon
10% F3385 may be added if needed where exempt solvents are allowed

Pot Life @ 70º / 50% RH

2 – 3 hours

(High heat and humidity will shorten pot life)

Number of Coats:


1 cross coat or 2 coats

(Allowing 15 – 20 minutes between coats if applying 2 coats)

Total Film Build

Wet

Dry

 

Minimum

2.4 mils.

1.5 mils.

 

Maximum

6.0 mils

4.0 mils.

 

FDSU Delfleet ® Evolution 2.8 VOC Ultra High Solids Polyurethane Enamel

Mixing Ratio:

3 FDSU

1 F3260
6 oz of F3400/F3405/F3410 per RTS Gallon
10% F3385 may be added if needed where exempt solvents are allowed

Pot Life @ 70º / 50% RH

2 – 3 hours

(High heat and humidity will shorten pot life)

Number Of Coats:


1 cross coat or 2 coats

(Allowing 15 – 20 minutes between coats if applying 2 coats)

Total Film Build

Wet

Dry

 

Minimum

2.4 mils.

1.5 mils.

 

Maximum

6.0 mils

4.0 mils.

  • Remove Defects with 320 grit or finer sandpaper or abrasive pad
  • Clean areas to be painted with PPG’s Delta ®, DRS 438 or Specialty Performance Product Cleaner SX1005. Refer to Bulletins FL-100 or PD-733 for additional information.
  • Tack of unit
  • When removal of coating does not expose bare metal:
    • Feather or scuff the surrounding area 1 – 2 inches beyond the affected area
    • Apply topcoat
    • Melt the edge of the repair by applying DX830 Universal Blender
  • If the damage exposes bare metal:
    • Re-apply appropriate primer
    • Scuff the topcoat color area one-inch from where the primer has been applied
    • Apply topcoat color

5.0 Notes

Pot-life and Drying

  • For every 15° increase in temperature, the pot-life and dry times of a product is cut in half
  • For every 15° decrease in temperature, the pot-life and dry times of a product will double
  • Product cross-linking and curing of 2-component (2K) catalyzed products slows significantly below 60° F. Paint will not dry properly if subject to cool temperatures during initial cure.

6.0 Safety

 

Health and Safety:

Please refer to Material Data Safety Sheets (MSDS) for full health safety details and storage regulations.

See Material Safety Data Sheet and Labels for additional safety information and handling instructions.

EMERGENCY MEDICAL OR SPILL CONTROL INFORMATION (412) 434-4515; IN CANADA (514) 645-1320

Materials described are designed for application by professional, trained personnel using proper equipment and are not intended for sale to the public. Products mentioned may be hazardous and should only be used according to directions, while observing precautions and warning statements listed on label. Statements and methods described are based upon the best information and practices known to PPG Industries. Procedures for applications mentioned are suggestions only and are not to be construed as representations or warranties as to performance, results, or fitness for any intended use, nor does PPG Industries warrant freedom from patent infringement in the use of any formula or process set forth herein.

Updated 11/8/2006