Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Family
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Application Method
- Compatible Substrates & Surfaces
- Uses
High build primer up to 5 mils DFT over abrasive blasted cold rolled steel where topcoat is required. No induction time and long pot life improves productivity. Spray application with minimal dry overspray.
- Application
Substrate: Cold rolled steel.
Surface Preparation: Commercial blasting SSPC-SP-6 will provide very good performance. If not possible Hand Tool clean SSPC-SP2 or Power Tool clean SSPC- SP-3 is acceptable with some sacrifice in performance vs blasting. Sanding and phosphating is acceptable as long as the surface is clean, dry, free from dust, chemicals and other contamination. Surface profile must be 1.5 to 2.5 mils average peak to valley.
Activation: Using a shear mixer mix each component thoroughly using a shear mixer at low speed before combining. At low speed create a small vortex and add the activator. Continue mixing until a thoroughly blended. Painting may begin immediately. No induction time is needed.
Reduction: Reduction is not needed for spray application. May be brushed or rolled with some sacrifice in appearance.
*Material losses during mixing and application will vary and must be taken into consideration when estimating material quantities needed to complete a project.
*High humidity 90% should be avoided during initial application and drying. High humidity may cause blushing or a microscopic layer of moisture on the surface which can cause adhesion problems between the primer and top coat.SUGGESTED FILM BUILD:
6 mils (150 μm) wet
3 mils (75 μm) dryCure time- hours: 77°F 50% RH 3 mill drawdown.
Dry to touch. 3-4 hours
Dry hard. 8 hours
Pot life. 4 hours
Dry to top coat. 15 hours
*Temperature, relative humidity, and film thickness will affect dry time.Equipment: Spray application
2001 BINKS
Fluid Nozzle- 63CSS
Air Cap- 63PR
Others may be used. Changes in pressure and tip size may be required.Roll & Brush: 1⁄4 - 1⁄2 inch Nap Roller cover. Keep roller wet. Roll in one direction, rewet, then cross roll. Brush apply with china bristle brush.
Clean Up: After shutdown or before a long delay, Prompt Clean Up Of All Equipment Is Essential, If Equipment Damage Is To Be Avoided. This applies to pots, lines, hoses and guns. Use Acetone or Xylene wash thinners.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Coverage Rate (1 mill Dry Film Thickness) | 855.0 | sq./ft. per gl. | - |
| Coverage Rate (3 mills Dry Film Thickness) | 285.0 | sq./ft. per gl. | - |
| Coverage Rate (5 mills Dry Film Thickness) | 171.0 | sq./ft. per gl. | - |
| Flash Point | 40.0 | °F | - |
| Gloss (60°,3 mils) | 15.0 | - | - |
| VOC/Gallon activated system | 2.09 (251) | lb./gl. (g/l) | - |
| VOC/Gallon Part A | 2.3 (283) | lb./gl. (g/l) | - |
| Volume Solids activated | 51.3 - 55.3 | % | - |
| Weight Solids activated | 68.5 - 72.5 | % | - |
| Weight/Gallon Catalyzed system | 11.70 - 12.10 | lbs. | - |
| Weight/Gallon Part A | 12.73 - 13.13 | lbs. | - |
Technical Details & Test Data
- Compatibility with Other Coatings
Aexcel high solids epoxy is compatible with most coating types in good condition. Test should be performed to assure adhesion and compatibility in an inconspicuous place before work begins.
- Properties
PERFORMANCE PROPERTIES: Primer only
Adhesion by tape test per ASTM D 3359-90 Rating: 4B
Sag ASTM D4400-889: 12 mills
Pencil Hardness ASTM D3363-72: 2H
Salt Fog per ASTM B-117: 1,000 hours
Creep at scribe Rating: 9-10, 0 to 1/64 inch
Blister at scribe Rating: 9-10 few small to none
Blister un-scribed area Rating: 10 none
Ratings are 0=very poor to 10=ExcellentPERFORMANCE PROPERTIES: With Aexcel High
Performance 2K Polyurethane Topcoat.
Acids - Very Good
Alkalis - Excellent
Solvents - Excellent
Weathering - Excellent (will chalk if not top coated)
Humidity - Excellent
Storage & Handling
- Storage
Store at room temperature. Keep From Freezing. Aexcel high solids epoxy may settle. Mix each component thoroughly using a shear mixer at low speed before activating.