Best on test: virgin versus recycled rubber fenders
Compound test results of Trelleborg fender versus low cost fenders conducted in 3rd party laboratory:Sample: Collected from fenders delivered to a Trelleborg client (ie. shared client).Tests conducted: Physical and chemical analysis, using sophisticated analytical methods.
| Property | Test method | Trelleborg fender | Low cost fender | Comments |
|---|---|---|---|---|
| Specific gravity | BS903 A1 | 1.15 | 1.29 | Higher value indicated usage of recycled and high density cheap filler |
| Tensile strength (Mpa) | BS 903 A2 | 15.4 | 9.3 | Very low compared to Trelleborg fender |
| Elongation @ break (%) | BS 903 A2 | 364 | 278 | Very low compared to Trelleborg fender |
| Polymer % | ASTM D6370 | 46 | 42.6 | Higher is better for recovery and properties |
| Carbon Black % | ASTM D6370 | 33.5 | 26.9 | Higher is better for boosting physical properties |
| Ash % | ASTM D297 | 3.7 | 21.5 | More than 5% is detrimental to the physical properties, ie. less resilience and elasticity leading to reduced longevity |
| Caco3 % | ASTM D4004 | 0.49 | 15.54 | More than 2% is used to reduce the cost |
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