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best marine application-liquid neoprene vs shrink
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| In2Deep |
Posted on 02/24/09 - 4:31 PM
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is liquid neoprene a better deterrent to corrosion than heat shrink for marine connections?
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| luckydog |
Posted on 02/24/09 - 7:37 PM
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I always solder, use heat shrink and then seal it with liquid neoprene(liquid electrical tape). That way the nice thick heat shrink acts as the insulation and the rather thin liq. neo. is just there to make it waterproof. This has never let me down.
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| Derwd24 |
Posted on 02/24/09 - 7:52 PM
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I always solder too (lead free, stands up better to salt environment) and use heat shrink with the incorporated sealant. It's a little more expensive but saves from having to use the liq. elect. tape, just looks a bit neater.
Dave - 1983 Outrage 22 |
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| MW |
Posted on 02/25/09 - 1:34 AM
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I solder, heat shrink, and use "liquid lectric tape".
Matt |
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| Mr T |
Posted on 03/24/09 - 7:22 PM
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Gonna take issue here, do NOT SOLDER CONNNECTIONS. They willl crack under flexing. Try getting an insurance inspection, and you will find they will likely not pass you if the inspector knows their stuff.
Use crimps, (I use Ancor), and then heat shrink the area where you crimped. Before you heat shrink the tube, put some di-electric grease in the connection area before you pull the tubing into place to cut down corrosion.
Will it be permanent? NO. But it will last as long as possible. I give my connections 3 years max before I tear em down and replace em. OVERkill? yeah but the last thing I want is electric gremlins on the water.
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| jquigley |
Posted on 03/24/09 - 7:28 PM
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No solder for me either Mr. T. i just crimp em and heat shrink em. If the heat shrink is long enough I don't even find it necessary to liquid tape them. Of course I am in a freshwater environment, and the boat gets wiped down and then put back in the garage after every time out, and I don't have a ton of connections, just running lights, and a few other electronic gizmos to watch out for, so the wiring is not very complicated.
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| ioptfm |
Posted on 03/24/09 - 7:30 PM
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I think it depends on what you are trying to connect. In my opinion you have a much greater chance of a crimp connection failing due to corrosion and wire deteriration than you do if you solder, heat shrink and preserve in a water tight coating. Nothing is fool proof on all applications. I have always soldered and sealed and have never had a problem, but it may all fall apart tomorrow 
Tom
1979 Sport 15' |
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| Tom W Clark |
Posted on 03/24/09 - 9:33 PM
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Soldering is good, done correctly.
For heat shrink on boats, I only use adhesive lined heat shrink. ANCOR makes a good product.
http://www.marinco.com/productline/ad...eat-shrink
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| MW |
Posted on 03/25/09 - 3:41 AM
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"Solder" will NOT corrode, it may corrode on the outside but, the inside will remain good, and keep the electrical connection working. The wire that stick's out of the "Solder" is where it always corrodes and breaks, "Solder" or "Mechanical connection", you are just "Buying" time in a salt water marine environment, it's NEVER perminent, you'll always go back.
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| WhalerDan |
Posted on 03/25/09 - 5:23 AM
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I just had my boat rewired, crimp and shrink with service loops/drip loops and terminal connections and di-electric grease. The guy who wired my boat doesn't like liquid neoprene.
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