Synthetic core
At Border we offer one level of synthetic composite core and this is denoted by an H in all our limb model series. It offers more arrow speed than their wood equivalent. This difference is roughly equal to 1lb to 2lbs of bow weight performance.
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HyperFlex, a tough lightweight core based on a cross linked polymer epoxy resin system. This core is specifically designed to be dimensionally stable under a wide range of temperatures that are well outside those likely to be found in shooting conditions. This core choice is best suited to those archers who wish to reduce bow performance differences caused by temperature changes to an absolute minimum!
HyperFlex cores have been in constant use since 2000 and have the lowest mass of all of our core materials and therefore maximise performance.
The composite core listed above is not of foam construction, as by definition a foam has gaseous inclusions and as such should be more susceptible and reactive to temperature changes. The core types that Border use are strong lightweight solids and offer the very best foundation on which to build extremely high performance bows and bow limbs.
