broken fin problem

[Ahmed Yahya]

i broke my fin when i stepped on its tip during a dive
any ideas to fix it ?

 

[fjpatrum]

Unless it doesn't work properly any more, I wouldn't bother with doing anything to it. On the second picture I can't even tell where the damage is, to be honest, but it looks like it's on the inside portion of the outer "band" of the fin. I would think that's not really a major issue while swimming.

 

[Ahmed Yahya]

actually the side bands is like a spring which controls the movement and propulsion of the fin. it actually moves diffrently underwater after that crack.

 

[cb5150]

Let me be the first to insert the standard Scuba Board answer....throw them away and buy Jet Fins. All other fins will kill you.

 

[button]

Duct tape??? :blinking:

 

[g1138]

actually the side bands is like a spring which controls the movement and propulsion of the fin. it actually moves diffrently underwater after that crack.

Your fins are shot then. There's nothing you can do to repair a plastic crack and still keep the same flexibility/rigidity it originally had.
Don't step on your tips next time. Better yet, stay off the bottom completely.

 

[ekremer]

maybe some jbweld?

 

[ams511]

I think the fin will need to be replaced. However, you can try using epoxy to seal the crack before you replace.

 

[Candiru]

Yeah Id go for the JBweld. Get the putty stick meant for plastic and rough up the edges before you apply it with some sandpaper. You are only out 4 buck if it doesnt work. Chances are it will.

http://www.jbweld.com/wp-content/uploads/2012/08/plasticweld.jpg