Epoxy For Bottom Of Coil?

[reddirtfisher]

I used to have a Fisher 1266X metal detector. The bottom of the coil was coated with some kind of epoxy. Does anyone know what the name of it is? Where can I get some?

 

[Sven]

MG CHEMICALS
#832b

http://www.mgchemicals.com/products/protective-coatings/epoxy-potting-and-encapsulating-compounds/black-epoxy-832b/

Buy from DigiKey, Mouser etc.

 

[reddirtfisher]

Hey, Thanks a lot Sven,.. I am going to check this out!

 

[Harold in NC]

[size=large][/size]Hey reddirtfisher, i water hunt and i use Marine epoxy, you can buy it at lowes or the home depot, for about 5.00 bucks or less, put one coat on and let dry and then a second it last or quite a while, i put it on with them small brushes you buy in the pipe section a package of about 10 small brushes for a couple of bucks, sure saves a lot of time cleaning your coil. HH Harold

 

[reddirtfisher]

Yea, that MG Chemical stuff is probably better but it's about $35.00 / bottle on Ebay. I saw some Marine epoxy at Ace hardware for $6.00. I will probably try that first. Thanks.

 

[reddirtfisher]

n/t

 

[Sven]

If your just recoating your coils bottom, you can use any waterproof epoxy. Most epoxies are water resistant and you will have no problems using. But, some will soften up after using continuosly
under water and some are effected by salt water. many epoxies tend to soften up as well if left in the sun to long, heat will do it. Most epoxies are not UV resistant, in that case evenutally it will yellow and break down if exposed to the sun.

Whatever epoxy you use make sure it has a long cure time, 15 minute , two hour cure times to not make a waterproof epoxy. It has to cure at least 24 hours, full hard cure sometimes as long as 4 days.
Some epoxies like the West System tend to be brittle when cured, when hit something hard will shatter. That's why I never liked it for boat building.

When you coat your coil, you are just mechanically bonding one epoxy to another. Make sure you scuff up the coil bottom with 80 grit sandpaper. You want the new epoxy to grab the little groves and roughness
the sandpaper created. Then wipe it down with acetone to remove any oils, grime,

Many guys are coating the coils bottom with truck bed liner paint it might be another alternative to look at.

 

[nicko42004200]

I have used just regular spray enamel. Like soray paint. Works great. 2 coats and been going great with about 60 hours on it . No trouble. Works like a champ. I used dark green so I can see when its wearing down. But have yet need to re coat. And it was on sale at aco hardware for like 1.99 . I could use 1 can for years and years. Only need 2 light coats and your set. And if you ever want it off. Pain tinner and a rag and its good as new. Just my thoughts.

 

[muggsc]

I have used Marine-Tex with very good results. Thinking about using it on the CTX coil, probably void the warranty though. It sure is great not having to worry about your coil filling with sand etc.
Cal