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Description of Application
Rub rails and fenders are designed to protect the hull
of a ship or boat against damage. They act as a bumper
to absorb impacts and scrapes, and the more elastic they
are, the more effectively they can perform this function.
Their elastic behaviour varies according to the type
of material used. The shock-absorbing performance of
the rub rail is significantly improved by the use of
an elastic adhesive joint. This affords maximum protection
to the hull.
Rub rails of conventional timber, PVC
or polyurethane construction can be securely bonded
to marine hulls using Sikaflex® -292. The resulting
elastic joint helps to absorb most of the shear and
tensile stresses to which rub rails are subjected when
a vessel is docking or casting off.
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In the case of rub rails secured with screws, a similar
effect can be obtained by backfilling the rail profile
with Sikaflex® -291, a highly elastic polyurethane
sealant. As well as absorbing torsional stresses, this
also seals the screw holes and prevents the ingress
of water or dirt behind the rub rail.
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