CTX SCREW ISSUE REVISITED - vid/pics

[GraveDiggerMax-VaBch-Va]

OK
THE ISSUE WITH THE SALT AND SCREWS FROM WHAT MINELAB SAYS IS JUST ASTHICS.
HOUSING IS ALL PLASTIC AND SCREWS ARE ALL TREATED S/S.
IT DOES APPEAR THAT THE CTX3030 WILL NEED A BIT MORE CARE AND TIME TO CLEAN THAN JUST A SPRAY OFF WITH A HOSE.
STAND BY FOR MORE IN THE COMING WEEKS.
HERE IS SHORT VIDEO AND SOME PICS AND A COPY OF EMAIL FROM MINELAB. FYI
.

These screws are stainless steel (marine grade), and for aesthetics they are made black by a passivation process. The discolouration in the photos is a standard reaction, it is not corrosion of the base steel itself. Any white residue can be wiped off. Over time, the natural stainless may show through. Hope that helps clarify.
Customer Service Support Officer
VIDEO
.
.
.
http://www.youtube.com/watch?v=SCPkprKw-KU

 

[ikspeel]

i love youre video's
keep posting

 

[pspr]

Max makes great videos. The beach in VA looks great too.

 

[Sailorman]

I wonder what alloy they are using as "Marine Grade Stainless"? There are several used these days but only one is worth a hoot in salt water. If they are using asian fasteners then there's no guarantee it's close to spec. I speak from hard experience in the marine field! You might try touching a rare earth magnet to one of the fasteners. If it shows any magnetic attraction it isn't the best of alloys for marine work. 316 would be the best choice but also the most expensive short of titanium.

 

[John - Maryland]

Try putting some silicon over each screw or neatly put a small amount of tub caulk over each screw,. .

 

[hershey1]

Sailorman a rare earth magnet or any magnet could cause damage close to the electronics. Maybe remove one of the screws first. That corrosion could hurt the value if a person decided to trade or sell their machine. Just a thought. Another great video Max. Thanks! HH

 

[Sailorman]

That could make matters worse! Stainless is only stainless when it is exposed to free atmospheric oxygen. When you take that away it will be much more likely to corrode. Silicone also has poor adhesion in a marine environment and suffers under UV exposure from the sun. It's already marginal bond strength will degrade quickly in a beach environment. That means it won't maintain a perfect seal very long and when the salt creep gets under it to the now not so stainless the problem will be much worse.

Peoples proclivity to attempt saving a few dollars using silicone on their boats made me thousands of dollars when I had a boat yard! By spending a little more on proper materials they would have saved themselves a bundle.