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What can cause fins to get damaged like this?

Discussion in 'Fins, Masks and Snorkels' started by purbeast, Sep 23, 2018.

  1. Popgun Pete

    Popgun Pete Nassau Grouper

    # of Dives: 500 - 999
    Location: Melbourne, Victoria, AUSTRALIA
    155
    130
    43
    I notice in both cases the black rubber looks dull on these busted fins. Rubber takes up atmospheric oxygen and this may eventually be affecting the inter-component bonding as if the antioxidant or scavenging compounds are low the oxygen will attack the joins inside the fin. That may explain why 3 years elapsed before the replacement fins disintegrated. Fins sitting on the shelf outside their packaging (display models) can be exposed to attack and “aged” even though they may look new.

    That said I bought a pair of Farallon fins that had spent years on the distributor's office display wall and they lasted for decades after I bought them for a token sum. However the only plastic in them was on the pivotal flex frames, the fins themselves were solid rubber.
     
  2. Steelyeyes

    Steelyeyes Manta Ray

    # of Dives: 200 - 499
    Location: Redmond Wa
    504
    332
    63
    I saw the problem right away. There is a huge split right in the middle of the blades of both fins. :popcorn:
     
    lexvil, BenjaminF and chillyinCanada like this.
  3. Popgun Pete

    Popgun Pete Nassau Grouper

    # of Dives: 500 - 999
    Location: Melbourne, Victoria, AUSTRALIA
    155
    130
    43
    Thanks for verifying your expertise.
     

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