Reinforcements

The graph below gives a rough idea of the costs in £ per kilogram for each of the reinforcements shown. This must only be used as a guide, as there are a number of variants within each material, some of which may exceed in price the upper bound shown. Generally the mechanical properties and environmental resistance, particularly temperature resistance, increase with increasing cost.

The range of prices for the individual fibre types is explained by variations in quality, and therefore strength and durability, of the fibre, and the costs for the different types of surface treatment which are applied to improve the bonding of the reinforcement to the resin.