Rubber sole
In climbing, there are several factors having some impact on friction. One of them are features of the rubber sole.Climbing rubber with correct parameters is one big alchemy. Parameters are defined by various components. Rubber has to have correct hardness and adhesion but mainly correct viscoelastic parameters which enable penetration of the rubber into rock structure. Softness allows rubber to mesh with rock and its rough surface. Rubber needs to be soft to allow it mould to the rock but if it‘s too soft the rubber will deform and slip. Softness of rubber also varies with temperature. Sticky rubber which gets easily penetrated by rock microstructure and is enough hard to transfer this enlarged interface area into friction, is the correct climbing rubber compound. And the rubber also determines resistance against wear which affects the lifetime of the shoe.Development and parameters of rubber compounds are for the efficiency and sport results of climbing shoes same important as for Formula 1 cars. To maintain perfect force transference by friction during contact of climbing shoes with rock requires scientific research in the field of physical theory of friction and chemical development of new compounds. Rock Pillars has this development for more than 20 years. Science cannot be without real life and testing. We are working many years on constant improvement together with our specialized suppliers, such as Vibram and also laboratory developing compounds Grippin. For specialized rubber compounds which are used for climbing shoes, the physical features play always such a role for which the rubber is purposed.
 | Vibram XS Grip Well proven rubber compound from VIBRAM®, it is used on our performance and extreme models range. It is working stable on edges, slabs and pockets, delivering maximum friction in all temperatures. Softer compound aimed mainly on extreme sport climbing on overhang rock where every bite counts. |
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| Grippin EDGE It was developed by our laboratory for maximum edging power, combination of friction and grip but still with great edging stability. Thanks to an improved resistance to plastic distortion, it keeps its shape even after hours of use. It was mixed for superior durability. |
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| Grippin DURA It was designed for extreme durability. This compound combines important features of friction, edging and stability. Due to balanced mixing of all we have come up with great rubber with universal features and long-lasting lifetime. |
RP Climbing s. r. o.,
Velenského, Bělá pod Bezdězem 294 21,
Tel: +420 326 701 409, Fax: +420 326 701 409, rockpillars@rpclimbing.cz
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