Thank you for the great idea and demonstration. Although I disagree, and believe this will make the rusting worse. The knife is made with loose fittings, so moisture can escape during use. Also, it should be completely disassembled and dried after each use to prevent corrosion. The bottom piece unscrews to release the blade. The two plastic pieces are pulled out of both sides to release the handle. If you follow this tutorial, be sure to seal the edges around the plastic keeper. The handle is hollow and rubber will expand/retract during dives.
Thank you for the positive feedback and the thoughts. The Cressi Dive knife rust problem is a notorious problem. There are horror pictures all over the internet of completely rusted out Cressi dive knives all the way down to the shaft. The issue is that in between the time one emerges from salt water to the hours or less until it can be rinsed with fresh water, this knife starts to rust. Even the Cressi knife with 304 stainless steel. If you're on a dive boat with other people, it may or may not be practical to start disassembling your knife and then you have to store it unsheathed somewhere while it's fully drying? It's incredible how easily this dive knife rusts, but thus far, using the method I demonstrated, I've had minimal (a couple of pin hole size rust spots right where I sealed it) to no rust (certainly not on the blade). Coating and recoating the knife is easy enough and safer I would think. I have no doubt that breaking down the knife, rinsing the parts of the knife (including those side tabs) in fresh water and then drying it thoroughly with a cloth, plus letting the tiny parts air dry might work. But I'll tell you, after a dive or snorkel, I have so much other crap to rinse off including a mask, snorkel, fins, dive socks, gloves, wetsuit, camera, camera extension, etc., the last thing I need is more. And if I'm with the wifey... guess who's washing her stuff? :-) Anyway, your comment was very helpful in terms of understanding the parts of the Cressi dive knife, for anyone who wants to disasemble it, so thank you again for the note and the suggestion.
Thank you for the great idea and demonstration. Although I disagree, and believe this will make the rusting worse. The knife is made with loose fittings, so moisture can escape during use. Also, it should be completely disassembled and dried after each use to prevent corrosion. The bottom piece unscrews to release the blade. The two plastic pieces are pulled out of both sides to release the handle. If you follow this tutorial, be sure to seal the edges around the plastic keeper. The handle is hollow and rubber will expand/retract during dives.
Thank you for the positive feedback and the thoughts. The Cressi Dive knife rust problem is a notorious problem. There are horror pictures all over the internet of completely rusted out Cressi dive knives all the way down to the shaft. The issue is that in between the time one emerges from salt water to the hours or less until it can be rinsed with fresh water, this knife starts to rust. Even the Cressi knife with 304 stainless steel. If you're on a dive boat with other people, it may or may not be practical to start disassembling your knife and then you have to store it unsheathed somewhere while it's fully drying? It's incredible how easily this dive knife rusts, but thus far, using the method I demonstrated, I've had minimal (a couple of pin hole size rust spots right where I sealed it) to no rust (certainly not on the blade). Coating and recoating the knife is easy enough and safer I would think. I have no doubt that breaking down the knife, rinsing the parts of the knife (including those side tabs) in fresh water and then drying it thoroughly with a cloth, plus letting the tiny parts air dry might work. But I'll tell you, after a dive or snorkel, I have so much other crap to rinse off including a mask, snorkel, fins, dive socks, gloves, wetsuit, camera, camera extension, etc., the last thing I need is more. And if I'm with the wifey... guess who's washing her stuff? :-) Anyway, your comment was very helpful in terms of understanding the parts of the Cressi dive knife, for anyone who wants to disasemble it, so thank you again for the note and the suggestion.
Parabéns!.. Obrigado! ótima dica!
You're welcome. What a dive knife right? Feels great in your hand and looks even better! Thank you for the comment and enjoy!