Fenders Design & Test
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Rubber Properties
Rubber Properties
Evergreen-Maritime Marine Fenders SystemTM marine fenders are made using the high quality Natural Rubber or Synthetic rubber or a mixture of them. All the rubber properties meet or exceed the performance requirements of international fender recommendations, such as PIANC. These are reinforced with carbon black and resistant to aging, seawater, abrasion, and ultraviolet rays.
The tables below list usual physical properties for the fenders. All test results are from laboratory made and cured test pieces.
Physical Properties | Test Standard | Condition | Value | Unit |
Tensile strength | ISO 37; ISO188 | Original | ≥16 | Mpa |
Aged for 96h at 70℃ | ≤80 | % | ||
Elongation at break | ISO 37; ISO188 | Original | ≥350 | % |
Aged for 96h at 70℃ | ≤20 | % | ||
Hardness | ASTM D 2240 | Original | ≤78 | Shore A |
Aged for 96h at 70℃ | ≤6 | Shore A | ||
Compression Set | ISO 815 | 22h at 70℃ | ≤30 | % |
Tear Resistance | ISO 34-1; | Original | ≥80 | N/cm |
Volume Change in oil | ISO 1817 | Original | ≤10 | % |
Seawater Resistance | ISO 1817 | 28 days at 95°C | % | |
Ozone Resistance | ISO 1431-1 | 50pphm at 20% strain, 40°C, 100 hours |
No cracks | |
Abrasion Resistance | ISO 4649 | Original | ≤100 | mm3 |
Bond Strength | ASTM D 429(B) | Rubber to steel | ≥7 | N/mm |
Dynamic Fatigue | ASTM D 430-95(B) | 15,000 cycles | Grade 0-1 |
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