Knowde Enhanced TDS
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- Application Data
Adhesion & Abrasion Resistance
Adhesion and abrasion data compiled from a 2k polyurethane coating formulated at an index of 1.05 with an HDI biuret at 70% in ethyl acetate and catalyzed with 100ppm DBTDL. Each coating was drawn down with a bird bar at 0.3 mil film thickness and cured at room temperature for 24 hours, then at 70 C for 8 hours onto a steel Q panel or Taber panel. Taber results are an average of three panels; adhesion of two.
Polyol Taber Abrasion Crosshatch Adhesion ASTM Test AvioTM 2426 2 mg/1000 cycles 5.5 (5.0) ASTM D4060, D3359
HDO/NPG adipate 102 mg/1000 cycles 1.0 (0.5) ASTM D4060, D3359
Mechanical Properties
Mechanical data compiled from a 2k polyurethane coating formulated at an index of 1.05 with an HDI biuret at 70% in ethyl acetate and catalyzed with 100ppm DBTDL. Each coating was drawn down with a bird bar at 0.3 mil film thickness onto a Q panel and cured at room temperature for 24 hours, then at 70 C for 8 hours. Control and test panels all passed Mandrel bend up to 180 C (ASTM D552).
Impact Resistance Polyol Shore A Intrusion Extrusion ASTM Test AvioTM 2426 96, 99 (97.5) > 160, > 160 in/lbs > 160, > 160 in/lbs ASTM D2240, D2794
HDO/NPG adipate 95, 89 (92.0) 140, 140 in/lbs 140, > 160 in/lbs ASTM D2240, D2794
The values listed have been established on standardized test specimens at standard temperature and humidity conditions. The figures should be regarded as guide values only.
- Application Data
Adhesion & Abrasion Resistance
Adhesion and abrasion data compiled from a 2k polyurethane coating formulated at an index of 1.05 with an HDI biuret at 70% in ethyl acetate and catalyzed with 100ppm DBTDL. Each coating was drawn down with a bird bar at 0.3 mil film thickness and cured at room temperature for 24 hours, then at 70 C for 8 hours onto a steel Q panel or Taber panel. Taber results are an average of three panels; adhesion of two.
Polyol Taber Abrasion Crosshatch Adhesion ASTM Test AvioTM 2426 2 mg/1000 cycles 5.5 (5.0) ASTM D4060, D3359
HDO/NPG adipate 102 mg/1000 cycles 1.0 (0.5) ASTM D4060, D3359
Mechanical Properties
Mechanical data compiled from a 2k polyurethane coating formulated at an index of 1.05 with an HDI biuret at 70% in ethyl acetate and catalyzed with 100ppm DBTDL. Each coating was drawn down with a bird bar at 0.3 mil film thickness onto a Q panel and cured at room temperature for 24 hours, then at 70 C for 8 hours. Control and test panels all passed Mandrel bend up to 180 C (ASTM D552).
Impact Resistance Polyol Shore A Intrusion Extrusion ASTM Test AvioTM 2426 96, 99 (97.5) > 160, > 160 in/lbs > 160, > 160 in/lbs ASTM D2240, D2794
HDO/NPG adipate 95, 89 (92.0) 140, 140 in/lbs 140, > 160 in/lbs ASTM D2240, D2794
The values listed have been established on standardized test specimens at standard temperature and humidity conditions. The figures should be regarded as guide values only.
Properties
- Mechanical Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Extrusion | min. 160 | in/lbs | ASTM D2240, D2796 |
| Intrusion | min. 160 | in/lbs | ASTM D2240, D2795 |
| Impact Resistance | 97.5 | Shore A | ASTM D2240, D2794 |
| Value | Units | Test Method / Conditions | |
| Viscosity (at 60°C) | 22000.0 | cPs | — |
| Acid Number | max. 2 | mg KOH/g | — |
| Hydroxyl Number | 55 - 65 | mg KOH/g | — |
| Taber Abrasion | 2.0 | mg/1000 cycles | ASTM D4060, D3359 |
| Water Content | max. 500 | ppm | — |
| Crosshatch Adhesion | 5.0 | — | ASTM D4060, D3359 |
| Specific Gravity | 1.1 | — | — |