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TAP RAP type CR+P is a bi-component unit composed by:
   CR, made of flexible, radially displaced, steel cords embedded in uncured rubber;
    P, a special rubber protector made of only rubber (or reinforced with fabric plies when used in OTR tires) .

CR and P must be applied separately, so to verify, step by step, the perfect application of CR.

TAP RAP type CR+P prevent from bulging of repaired area, according to the Regulation UN-ECE 109, which fix bulge limit to 4mm . All TAP RAP patches conform to this requirement being tested and certified by Politecnico di Bari.

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