Rubber Properties

Rubber Properties

Evergreen-Maritime Marine Fenders System^TM 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
Tensile strength	ISO 37; ISO188	Aged for 96h at 70℃	≤80	%
Elongation at break	ISO 37; ISO188	Original	≥350	%
Elongation at break	ISO 37; ISO188	Aged for 96h at 70℃	≤20	%
Hardness	ASTM D 2240	Original	≤78	Shore A
Hardness	ASTM D 2240	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