SPECTRACRON
®
573 HIGH BUILD ANTI-CORROSIVE EPOXY PRIMER
SPECTRACRON ® 573 High Build Anti-Corrosive Epoxy Primer is a two-component, 2.1 VOC compliant, high solids, chrome free, rust inhibitive primer. The high build characteristics of the epoxy primer make an excellent choice for blasted steel surfaces and where excellent filling properties, adhesion, chemical resistance and corrosion protection are needed.
High film build which is capable of filling a blast profile
Excellent adhesion to cleaned steel substrates
Excellent sag resistance
Excellent corrosion resistance
Excellent chemical resistance
Lead and chrome free
2.1 lb./gal. (252 g/l) VOC blended
Can be used over zinc rich primers, galvanized & galvanneal substrates
PROPERTY METHOD RESULT*
Color
Gloss Range @ 60 ° Angle
Pencil Hardness
Adhesion – Steel
Chemical Resistance (no topcoat)
Toluene
10% NaOH (Sodium Hydroxide)
10% HCL (Hydrochloric Acid)
10% H
2
SO
4
(Sulphuric Acid)
Gasoline
Isopropanol
Water +
Salt Spray Resistance – 1000 Hrs.
Corrosion Creep ++
Scribe Blisters
Humidity Resistance – 100 Hrs.
Face Blisters
5 Minute Recovery Adhesion
1 Hour Recovery Adhesion
24 Hour Recovery Adhesion
ASTM D523
ASTM D3363
ASTM 3359
D1308
D1308
D1308
D1308
D1308
D1308
D1308
B117
D1654
D714
D714
D2247
D3359
D3359
D3359
Gray (QAP573-GRY)
White (QAP573-WHT)
Black (QAP573-BLK)
10± 5
F
5B
Pass
Slight gloss loss
Moderate gloss loss
Pass
Pass
Pass
Very slight ring
9A
4F
None
5B
5B
5B
Substrates CRS, Blasted HRS, Stainless Steel, Aluminum
Galvanized, Galvanneal, Plastic /Fiberglass**
Recommended Topcoat(s) See Compatibility Chart
*All tests results assume proper cure and preparation of test substrates. Unless otherwise stated, all results were obtained spraying product direct to metal on Bonderite
1000 panels.
**Surface should be free of all contamination. Because of the variability of the Plastic / Fiberglass substrates, coating performance should be confirmed on the substrate being used.
+ Although resistant to intermittent exposure, this product is not recommended for immersion.
++Results based upon 4 – 5 mils DFT.
Revision Date: 6/2014
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SPECTRACRON
®
573 HIGH BUILD ANTI-CORROSIVE EPOXY PRIMER
PROPERTY QAP573-GRY* QAP573-WHT* QAP573-BLK* Custom Colors
Percent solids (by weight)
Percent solids (by volume)
Organic HAPs
Photo-chemically reactive
Flashpoint (Component A/B)
Volume Ratio
Coverage (@ 1 mil, no loss)
Shelf Life
Applicable Use Category
VOC Actual
(reduced w/Acetone)
VOC Regulatory
(less water less exempts)
Density
Volatiles by weight %
Water by weight %
65.69%
53.8%
1.08 lbs./gal.
Yes
65°F (18°C)/
59°F (15°C)
2:1:.5
863 sq. ft./gal.
66.0%
53.58%
1.06 lbs./gal.
Yes
65°F (18°C)/
59°F (15°C)
2:1:.5
859 sq. ft./gal.
63.83%
52.47%
.98 lbs./gal.
Yes
65°F (18°C)/
59°F (15°C)
2:1:.5
842 sq. ft./gal.
2 years 2 years 2 years
Single-Stage Ctg. Single-Stage Ctg. Single-Stage Ctg.
1.46 lbs./gal. 1.43 lbs./gal. 1.51 lbs./gal.
175 g/L 171 g/L 181g/L
1.95 lbs./gal.
234 g/L
10.23 lbs./gal.
1226 g/L
34.31%
.55%
1.92 lbs./gal.
230 g/L
10.36 lbs./gal.
1241 g/L
34.0%
.60%
2.03 lbs./gal.
243 g/L
9.90 lbs./gal.
1186 g/L
36.17%
.26%
63.5 – 66.0%
52.0 – 53.8%
<1.0 lbs./gal.
Yes
**
2:1:.5
834 - 863 sq. ft./gal.
2 years
Single-Stage Ctg.
1.42 – 1.55 lbs./gal.
169 - 185 g/L
1.91 – 2.08 lbs./gal.
229 - 249 g/L
9.91 – 10.34 lbs./gal.
1187 - 1239 g/L
34.0 – 36.4%
0.2 – 0.6%
Exempt weight %
Water volume %
Exempt volume %
19.45%
.68%
24.06%
19.59%
.74%
24.65%
20.63%
.31%
25.29%
19.5 – 21.1%
0.3 – 0.7%
24.1 – 26.1%
*The primers were blended 2 parts primer to 1 part activator (QAP574) and reduced with 0.5 parts Acetone.
The surface to be coated must be clean and free of all surface contamination. For cold rolled steel, a chemical pretreatment such as PPG Chemfos
®
KA Cleaner/Coater or a similar conversion coating will improve the performance properties of the coating system.
It is recommended that adhesion and system compatibility be checked prior to full application. For hot rolled steel, it is recommended that the substrate be cleaned with SSPC-SPC2 Hand Tool or SSPC-SPC3
Power Tool clean Minimum. For best performance, a minimum blast of SSPC-SP6 (NACE#3),
Commercial Blast Cleaning is recommended.
For other substrates, see your PPG Representative for recommendations.
Revision Date: 6/2014
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SPECTRACRON
®
573 HIGH BUILD ANTI-CORROSIVE EPOXY PRIMER
Mixing Instructions: 2 parts SPECTRACRON 573 (QAP573; Component A) to
1 part SPECTRACRON 574 (QAP574; Component B) (by volume)
Reducer*: .5 – 1 part or 16 - 32% of Q30 Acetone (exempt solvent)
*Non-exempt solvents such as Q50 Aromatic 100, Q60 MEK, Q70 MAK,
Q80 Xylene can be used but will result in VOC’s greater than 2.1lbs/gal.
Digestion time: None required
Wet Film Thickness: 3.0 – 13.0 mils
Dry Film Thickness: 2.0 – 8.0 mils
Viscosity (@77°F): 10 - 20 sec. (Zahn #3 EZ cup)
Pot Life (@77°F): 2 hrs. (When reduced with exempt or non-exempt solvent)
Clean up: Q30 Acetone or Q60 MEK
SPRAY
APPLICATION
SPRAY
EQUIPMENT*
FLUID
PRESSURE
(psi)
ATOMIZATION
PRESSURE
(psi)
FLUID
NOZZLE
Conventional
HVLP
Binks 2001 or Model 95
DeVilbiss – JGHV 531
8 - 10
8 - 10
50 - 70
55 – 60**
63C Tip 1.4 mm (.055”)
66SS Tip 1.8 mm (.070”)
FF Tip - 1.4mm (0.055”)
E Tip – 1.8 mm (.070)
AIR NOZZLE
63PR, 63PB
#46 MP
Airless Graco G-40 2000 - 2400 n/a 0.013 to 0.017” n/a
Alpha Air Assisted Airless Graco Alpha A.A. 1520 - 1800 25 - 30 0.013 to 0.017”
*or equivalent
**HVLP atomization pressure should read <10 psi @ the cap
Air-dry (assumes 77°F & 50% Relative Humidity) Bake / Force Cure
To Touch: 90 – 120 min. Flash Time: 15 min. (ambient)
To Handle: 2 – 3 hours Substrate Temp: 140 – 160°F
To Recoat: 1 hour to 4 days with a Bake Time: 40 – 20 min.
Polyurethane topcoat; must be
Abraded after 4 days
Do not apply at temperatures below 50°F
Excess film thickness will retard dry times
Paint film is not fully cured for 7 days.
In-Service Temperature: 300°F (149°C)
SPECTRACRON
® is a registered trademark of PPG Industries Ohio, Inc.
For more information contact:
PPG TrueFinish® Industrial Coatings, One PPG Place Pittsburgh, PA 15272, 1-866-PPG-TRUE www.ppgtruefinish.com
The technical data presented is information believed by PPG to be currently accurate; however, no guarantee of accuracy, comprehensiveness or performance is given or implied. Continuous improvements in coating technology may cause future technical data to vary from what is in this document. Product is intended for application by trained personnel in a factory or shop application. Do not attempt to use product without the current Material Safety Data Sheet. The performance of a product can fluctuate due to surface preparation technique, method of application, operating conditions, the material it is applied to or with, and use. It is strongly recommended that products be tested with respect to these factors prior to full scale use.
Revision Date: 6/2014
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