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Product Name | Polyurea Coating | Batch Number | 20220316008 | ||
Test Item | Unit | Testing standard (GB/T23446-2009) | Test data | Result | |
The tensile strength | Mpa | ≥16 | 18 | qualified | |
Elongation at break | % | ≥450 | 480 | qualified | |
Tear strength | N/mm | ≥50 | 56 | qualified | |
Low temperature bending | /℃ | -40 | -40 | qualified | |
Impervious | 0.4mpa*2h | impervious | impervious | qualified | |
Solid content | % | ≥98 | 99 | qualified | |
Gel time | S | ≤45 | 40 | qualified | |
Dry time | S | ≤120 | 100 | qualified | |
Bond strength | MPA | >2.5 | 3.5 | qualified | |
Hardness | shao A | >80 | 85 | qualified | |
Abrasion resistance | (750G/500)mg | <30 | 25 | qualified | |
Shock resistance | b/kg*m | >1.00 | 1.20 | qualified | |
Water absorption | % | <5 | 2 | qualified | |
heat treatment(80°) | Retention tensile strength% | 80-150 | 104 | qualified | |
Elongation at break%≥ | 400.00 | 420 | qualified | ||
Low temperature bending/℃ | -35 | -35 | qualified | ||
Timed aging | heat aging | No cracks and deformation | No cracks and deformation | qualified | |
artificial weathering aging | No cracks and deformation | No cracks and deformation | qualified | ||
Heating expansion rate | elongation< | 1.00 | 0.99 | qualified | |
shrink< | 1.00 | 0.99 | qualified | ||
artificial weathering aging | Retention tensile strength% | 80-150 | 95 | qualified | |
Elongation at break%≥ | 400 | 420 | qualified | ||
Low temperature bending/℃ | -35 | -35 | qualified | ||
alkali treatment 0.1% NAOH and Ca(OH)2) to saturation | Retention tensile strength% | 80-150 | 91 | qualified | |
Elongation at break%≥ | 400 | 442 | qualified | ||
Low temperature bending/℃ | -35 | -35 | qualified | ||
Acid treatment (2% sulphuric acid) | Retention tensile strength% | 80-150 | 89 | qualified | |
Elongation at break%≥ | 400 | 425 | qualified | ||
Low temperature bending/℃ | -35 | -35 | qualified | ||
salt treatment (3% NACL) | Retention tensile strength% | 80-150 | 90 | qualified | |
Elongation at break%≥ | 400 | 433 | qualified | ||
Low temperature bending/℃ | -35 | -35 | qualified | ||






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