Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Finish
- Eggshell
- Vehicle Type
- Hybrid Epoxy Novolac
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- Next generation polymer technology specifically engineered for heat stability and chemical resistance
- Dry heat stability up to 450°F, immersion up to 300°F (350°F for some cargoes/services)
- Superior resistance to a wide variety of chemicals and solvents
- Superior abrasion resistance
- Superior adhesion even over marginally prepared surfaces
- Excellent corrosion resistance
- Ease of application
- Specially engineered inert filler package provides superior barrier properties
- Superior substrate wetting provides excellent adhesion and corrosion protection
- Ultra-high crosslink density provides a tough durable film with long lasting protection
Applications & Uses
- Applications
- Application Area
- Compatible Substrates & Surfaces
- Surface Preparation
All surfaces should be clean, dry and free of all foreign contaminants.
A SSPC-SP1 Solvent Cleaning with Highland 901 Cleaning Solvent is recommended before blasting or other cleaning method.Carbon Steel - Immersion: Obtain a 2-3 mil angular blast profile using one of the recommended methods below.
- Best: A SSPC-SP5/NACE 1 White Metal Blast Cleaning is recommended for maximum coating performance and longevity.
- Good: A SSPC-SP10/NACE 2 Near White Metal Blast Cleaning provides good results.
Carbon Steel - Non-Immersion: Obtain a 2-3 mil angular blast profile using one of the recommended methods below.
- Best: A SSPC-SP10/NACE 2 Near White Metal Blast Cleaning is recommended for maximum coating performance and longevity.
- Good: A SSPC-SP6/NACE 3 Commercial Blast Cleaning provides good results.
Galvanized Steel: Contact a Highland representative as recommendation will vary depending on substrate and exposure conditions.
Note: Allow one week at 77˚F before being put into service (unless force cured). The second coat/topcoat must be applied within 36 hours at 77˚F or the surface will need to be scuffed.
- Mixing & Application
Mixing: Highland 74-AR Series needs to be thoroughly mixed using mechanical agitation. Mix entire contents of Part “A” Activator (74-AR- 100) and Part “C” Abrasion Resistant Component (74-AR-C) with Part “B” Base (74-AR-####) (4:1:1 by volume) Product is ready to spray after proper mixing and a 30 minute induction period.
Reduction: Reduction is not required, if desired, reduce by 0% - 10% with Highland #740 reducer.
Highland 74-AR Series is designed for spray application. To ensure optimal performance, apply according to recommendations below.
Airless Gun: Graco 205-591 Pump: 30:1/45:1/60:1 Tip Range: 3.013 – 4.017 Pump Pressure: 1,800 psi Minimum
Hose: 3/8 inch ID Brush or Roller: Both are acceptable for touch up.
Conventional Gun: DeVilbiss MBC-510
Fluid Tip: E Air Cap: 704 Atomizing Pressure: 70 psi Pot Pressure: 15-20 psi Hose: 1/2 inch Clean Up: Highland #901 Cleaning Solvent
- Typical Systems
- Standard/Immersion Service: Apply 8-16 mils DFT of 74-AR Series in 2 coats at 6-8 mils per coat directly to prepared steel.
- Highland 74-AR Series may also be topcoated with a variety of Highland Topcoats.
- Force Cure Guideline
After final application of the Highland International ChemTemp Series, allow to vent 4-6 hours at 75°F with good air circulation to all portions of the enclosed area. This fresh air is required to remove all solvent vapors. This ventilation or air movement is required throughout the complete curing period.
After ventilation period (75°F) slowly ramp surface temperature to:
- 85°F for 5 days (24 hour days)
- 95°F for 3 days
- 105°F for 2 days
- 115°F for 36 hours
- 125°F for 24 hours
- 140°F for 12 hours
- 200°F for 1 hour
These are general guidelines. If you require more detailed information concerning accelerated cure schedules, please contact Highland International Representation.
Properties
- Typical Properties
- Performance Properties
| Value | Units | Test Method / Conditions | |
| Application Temperature Ambient | min. 45 | °F | - |
| Dry Film Thickness | 10 - 16 | Mils | - |
| Flash Point | 24.0 | °F | - |
| Full Cure (Final Coat when Force Cured) | 7.0 | Days | - |
| Heat Resistance (Immersion Services) | 350.0 | °F | - |
| Heat Resistance (Dry Heat Services) | 450.0 | °F | - |
| Mix Ratio | 4:1:1 Base to Activator to Part C | - | - |
| Storage Temperature | 20 - 110 | °F | - |
| Application Temperature Substrate | 40 - 100 | °F | - |
| Theoretical Coverage (1 Mil DFT) | 1122.0 | ft²/gal. | - |
| Dry Time (To Recoat) | 3 - 36 | Hours | - |
| Dry Time (To Touch) | 4.0 | Hours | - |
| VOC | max. 247 | g/L | - |
| Solids (by Volume) | 70.0 | % | - |
| Wet Film Thickness (Per Coat) | 8.6 - 11.4 | mils | - |
| Value | Units | Test Method / Conditions | |
| Abrasion Resistance (1000 Cycles, 1000g Load) | Excellent – 43.1 mg loss | - | ASTM D 4060 |
| Adhesion (Commercial Blast) | min. 1800 | psi | ASTM D 4541 |
| Chemical Resistance (MEK) | Excellent – No defects observed | - | ASTM D 1308 |
| Chemical Resistance (25% H₂SO₄) | Slight discoloration, no other defects observed | - | ASTM D 1308 |
| Chemical Resistance (25% NaOH) | Slight loss of gloss, no other defects observed | - | ASTM D 1308 |
| Elongation | 5.0 | % | ASTM D 522 |
| Humidity Resistance (3000 Hours) | Excellent – No blistering or other defects observed | - | ASTM 4585 |
| Pencil Hardness | 6H | - | ASTM D 3363 |
| Salt Spray Resistance (3000 Hours) | Excellent - <1 mm creep from scribe, no blistering | - | ASTM B 117 |
Technical Details & Test Data
- Independent Test Data
RAE Engineering and Inspection Ltd. November 2012
ASTM D4060-07 - Standard Test Method for Resistance of
Organic Coatings by Taber AbraserAbrasion
Method: CS-17 Wheels, 1kg. Wheel, 1000 cycles
System:- Highland 74-AR at 8.2 mils DFT
- Results: DFT loss (μm) Average Difference 12.5
- Mass loss (mg) Average Difference 43.1
System:
- Leading Competitor at 7.1 mils DFT
- Results: DFT loss (μm) Average Difference 27.9
- Mass loss (mg) Average Difference 37
RAE Engineering and Inspection Ltd. May 2011
NACE TM0185 – Evaluation of Internal Plastic Coatings for Corrosion Control of Tubular Goods by Autoclave Testing.Adhesion
Method: ASTM D4541 – Standard Test Method for Pull-Off Strength
System: Two coats 74 Series at 8 mils DFT per coat applied to:- SSPC-SP6 Commercial Blast prepared steel
- No surface preparation
Result:
- No less than 1400 psi with SPPC-SP6 Commercial Blast
- No less than 1000 psi with no surface preparation.
Chemical Immersion
Method: Continuous Immersion at 93°C (200°F)
System: Two coats 74 Series at 8 mils DFT per coat applied to SSPC-SP5 White Metal Blast prepared steel. Cured 14 days at 21°C (70°F).
Result: No cracking, lifting, or delamination after 60 days of continuous exposure.
Reagents: 10% methanol, 50% methanol, 10% sulfuric acid, 25% sulfuric acid, 10% sodium hydroxide, 50%Sodium hydroxide.Heat Resistance
Method: Continuous heat exposure at 232°C (450°F)
System: Two coats 74 Series at 8 mils DFT per coat applied to:- SSPC-SP56 Commercial Blast prepared steel
- No surface preparation
- No surface preparation with tight rust. Cured 14 days at 21°C (70°F).
Result: No cracking, lifting, or delamination of the film after 3000 hours of continuous exposure.
Acid Condensation Bath
Method: Coated panels exposed to a condensation bath with 50% sulfuric acid and water. The test duration was 1000 hours total at 177°C (350°F) and the panels were scribed with an “X” to evaluate corrosion. The acid bath was performed in an enclosed apparatus that retained the sulfuric acid condensation, and the panels were suspended in the headspace.
System: Single coat as well as two coats 74 Series at 8 mils DFT per coat applied to SSPC-SP6 Commercial Blast prepared steel. Cured 24 hours at 21°C (70°F).
Result: No rust creepage, softening, cracking or delamination of the film after 1000 hours of continuous exposure.Sulfuric Acid Spot Testing
Method: Continuous heat at 177°C (350°F) for 1500 hours. After 1500 hours, spot testing was performed with 98% sulfuric acid for 72 hours.
System: Two coats 74 Series at 8 mils DFT per coat applied to SSPC-SP6 Commercial Blast prepared steel. Cured 24 hours at 21°C (70°F).
Result: No softening or cracking of the film (some discoloration was observed.Charter Coating Services Ltd. July 2011
Method: NACE TM0185 – Evaluation of Internal Plastic Coatings for Corrosion Control of Tubular Goods by Autoclave Testing.
Test Conditions:- Temperature: 45°C/ 203°F
- Pressure: 1800 psi
- Gas Phase: 5% H2S, 5% CO2, 90% CH4
- Organic Phase: Toluene: Xylene 1:1 ratio
- Aqueous Phase: 5% NaCl
- Duration: Cycle 1 - 96 hours/ Cycle 2 – additional 48 hours (rapid depressurization)
System: Two coats 74 Series @ 5-8 mils DFT per coat applied to SSPC-SP 5 White Metal Blast prepared steel.
Cycle 1 Results:- Blistering – the test panel remained free of blisters in all three phases
- Adhesion – The maintained an A rating in all three phases
- Depressurization – no effect from 1500psi to atmospheric over duration of 120 minutes
- Cycle 2 Results: (Additional 48 Hours Test with Rapid Decompression from 1800psi to atmospheric in 5 Minutes at 95°C/203°F)
- Blistering – The coating showed reactions to the rapid decompression condition as indicated by minor blistering (D#6), the blisters did not extend to substrate.
- No holidays were detected.
- Adhesion – The coating maintained excellent adhesion (rating A) after exposure.
Safety & Health
- Safety Information
- Use normal precautions such as gloves, facemasks and barrier creams.
- Adequate ventilation must be maintained. In confined areas, applicators must wear constant flow airline respirators.
- If product comes into contact with skin, wash thoroughly with lukewarm water or diluted Boric Acid, and obtain immediate medical attention.
- This product contains Flammable materials. Keep away from sparks and open flames. Observe no smoking regulations.
- All electrical equipment and installations should conform to NEC regulations. In areas where explosion hazards exist, workmen should be required to use nonferrous tools, and to wear conductive, non sparking shoes.
- Observe low flash regulations.
Packaging & Availability
- Packaging Type
- Packaging
5 Gallon & 1 Gallon Kits
Storage & Handling
- Pot Life (77°F)
- 3.0
- Shelf Life
- Minimum 2 Years