White Paper Series - PART I.
COMPOUNDING. A WINDING ROAD
A reinforced rubber compound being the core of any fender, the first part of the SFT White Paper Series on fender manufacturing focuses on the raw materials used in rubber production, the physical properties of a fender and their correlation with the compound’s composition.
- Based on international standards
- Full facts on rubber compounding
Download your version below, it is available in English, French, Spanish, and Swedish:
White Paper - Compounding
Dossier Technique - Composition
Boletines Técnicos - Composición
Teknisk rapport - Blandningen
Our White Paper Series on fender manufacturing continues – the second part focusing on mixing was released recently. It outlines the individual steps of rubber mixing in order to create an insight in this very sensitive part of fender manufacturing. Part II - Mixing is available here.
Executive Summary 'Compounding. A winding road'
The first part of the SFT White Paper Series on fender manufacturing outlines the considerations relevant to determining what makes a good fender. It focuses on the raw materials used in rubber production, the physical properties of a fender, and their correlation with the compound’s composition.
There are international standards and guidelines providing guidance as to the physical properties of rubber fenders – like PIANC2002 and ASTM D2000. However, there is no international standard specifying the chemical composition of the rubber compound used in the manufacturing of rubber fenders.
The paper finds that in fender manufacturing, physical properties are the only reliable indicator of the quality of a rubber compound that is defined by international standards. In addition, it recommends that ratios of fillers and reinforcement agents such as carbon black (CB), calcium carbonate (CC) and silica should be determined by specialists with profound material knowledge, as amount and particle size greatly influence the compound as well as its performance and durability. The paper furthermore draws attention to the fact that rubber compounds mixed correctly with CC by experienced manufacturers comply with and surpass international testing standards.