Zinc Chromate Primer
CM0723404
ADVANTAGES
DESCRIPTION
• Excellent water and corrosion
resistance. CM0723404 is a single component corrosion-inhibiting primer primarily for use on
aluminum aircraft or airborne equipment surfaces. This product may be topcoated
• Fast dry. with lacquer or enamel. This product may be used without a topcoat. This
product is for spray application.
• Recoatable with lacquer or
enamel. COATING PROPERTIES
Color: Green
• Meets the performance criteria
set forth in TT-P-757B, Type 1, Base Component
Class C. Solids: 28-32%
By volume
Wt./Gal. 9.0 – 9.4 lbs.
Specific Gravity 1.08-1.13
Viscosity:
#2 Zahn, Gardner Series 15-25 seconds
ISO 2431 3mm Cup – Sheen 45-80 seconds
VOC: 4.52 lbs./gal. (542 g/L)
Dry Time:
Air Dry (0.8 DFT), At 77ºF (25ºC), 50% RH
Dry hard 15 minutes
To recoat Within 7 days
Recommended Mil
Thickness
Mils Dry 0.6 – 0.9
Theoretical Coverage:
2
Per dry 0.8 mil 608 ft. /gal.
2
Per 25 μm 15.0 g/m
SHELF LIFE
Shelf Life is applicable only for material stored in unopened and undamaged original
factory filled containers.
Minimum Storage Temp. 40ºF / 4ºC
Maximum Storage Temp. 90ºF / 32ºC
CM0723404: 1 year
Sherwin–Williams Aerospace Coatings • 415 E. Commerce Street • Andover, KS 67002
Tel: 316.733.7576 • Toll Free: 888.888.5593 • Fax: 316.733.1348
www.swaerospace.com Revision 3, 7/1/2009, Page 1 of 2
SURFACE PREPARATION___________________
Steel – Surface must be clean and free of grease, dirt, oil, rust
fingerprints, and other contaminants to insure optimum adhesion
and performance properties. Chemical pretreatment, zinc
phosphate or CM0484684 Wash primer gives best adhesion and
performance results. Where blasting is appropriate, blast in
accordance with SSPC-SP6. For optimum adhesion pretreat
blasted surface immediately. Prime with wash primer
CM0484684 within two hours after blasting.
Aluminum – Clean with acidic cleaner or other appropriate
cleaner depending on contamination. Pretreat with chromate
conversion coating, wash primer CM0484684, or anodize per
MIL-A-8625. Galvanized and other metals: Clean and remove
oxidation contamination on surface, followed by treatment with
CM0484684 wash primer. Due to the variability in these
surfaces, testing adhesion on each situation is recommended.
MIXING INSTRUCTIONS
Pre-shake the primer for 5-10 minutes.
No reduction is required. If desired, reduce up to 10% with
CM0110944.
APPLICATION
This product can be applied using conventional spray, or HVLP.
Please consult your Sherwin-Williams Aerospace representative
for proper equipment settings.
Note: Cured film should not be subjected to strong solvents like
MEK. Should primer require cleaning prior to topcoating
CM0110120 pre-paint wipe is recommended (See data sheet)
EQUIPMENT CLEANUP
Clean tools/equipment immediately after use with toluene,
xylene, or lacquer thinner. Follow manufacturer’s safety
recommendations when using any solvent.
PRODUCT INFORMATION
Product Data Sheets are periodically updated to reflect new information
relating to the product. It is important that the customer obtain the most
recent Product Data Sheet for the product being used. The information,
rating, and opinions stated here pertain to the material currently offered
and represent the results of tests believed to be reliable. However, due
to variations in customer handling and methods of application which are
not known or under our control, The Sherwin–Williams Company cannot
make any warranties as to the end result.
Sherwin–Williams Aerospace Coatings • 415 E. Commerce Street • Andover, KS 67002
Tel: 316.733.7576 • Toll Free: 888.888.5593 • Fax: 316.733.1348
www.swaerospace.com Revision 3, 7/01/2009, Page 2 of 2
