How is a Kevlar boat different from a fibreglass boat?

Kevlar kayaks are made using a sandwich of fibreglass and Kevlar fabrics bonded together with vinylester resin. There is almost always a fibreglass cloth of some type as the outside layer(s). Because Kevlar is much higher in stiffness and tensile strength than fibreglass, the builder can use fewer layers of cloth and in turn use much less resin reducing weight by approximately 15-20%.

Kevlar is much more expensive than fibreglass and much more difficult to repair. It can be easily recognized by its gold colour. More.

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