Raw material

Composites materials are obtained by combining at least two components: RESIN and REINFORCING FIBRES.
The RESIN performs the function of transferring applied loads to the fibres and holds fibres together. The adhesion between the resin and fibres is the most important parameter determining the physical and mechanical properties of the composite. The resins used are: POLYESTER, VINYLESTER, EPOXY and ACRYLICS.

The REINFORCING FIBRES, adhering to the resin, determine the structure and overall mechanical behaviour of the composite.
The fibres used consist of: GLASS, CARBON, ARAMID and other NATURAL, SYNTHETIC and METALLIC ones.
The properties of the fibres are used to give stiffnessand resist tensile and compressive loads.

Other SUBSTANCES are sometimes be added to these two main raw materials (for example, CHEMICAL ADDITIVES, CATALYSTS, PIGMENTS, MINERAL FILLERS and others) in order to obtain profiles with specific physical and mechanical properties.

 

MAIN CHARACTERISTICS OF RESINS
STANDARD POLYESTER
SELF-EXTINGUISHING POLYESTER
SELF-EXTINGUISHING ACRYLIC
VYNILESTER
EPOXY
LOW COST VERY GOOD FAIR LACKING LACKING LACKING
VERSATILITY OF PROCESS VERY GOOD GOOD FAIR GOOD LACKING
AVAILABILITY EXCELLENT GOOD GOOD VERY GOOD FAIR
FIRE RESISTANCE PROPERTIES GOOD GOOD EXCELLENT GOOD LACKING
SMOKE EMISSIONS GOOD GOOD EXCELLENT LACKING LACKING
RESISTANCE TO CHEMICALS FAIR FAIR FAIR EXCELLENT VERY GOOD
MECHANICAL PROPERTIES GOOD GOOD FAIR VERY GOOD EXCELLENT
CREEP AND FATIGUE GOOD GOOD FAIR VERY GOOD EXCELLENT
ELECTRICAL INSULATION GOOD GOOD VERY GOOD GOOD VERY GOOD