Anybody tried these solder and seal connectors?

Yes i have used them. It's a very good idea. You can use a lit match to both melt the solder then shrink the shrink wrap. It's fast quick and easy. Hobby shops carry them. When I use them, I use one of those small hand held butane torch's and it makes it very fast process. I should add that the bigger ones you should use the torch. I'm glad you posted this cause I lost my buying source.

Yes. I use a heat gun on them.

I use standard crimps that I fill with a de-oxidation compound to seal out water.
In some locations I use heat shrink with a sealant inside. When heat is applied to the tubing the sealant forms a water proof seal.

I keep seeing the ads and makes me scratch my head ... Navy Avionics A school would fail those as cold solder joints ... or am I missing something?

been used in the military specifications for years. However, not all are made to the same US spec.

Have not tried them MYSELF but... There is an internet TV show. Ham Nation. and a second one the url is amateurlogic.TV both feature one of the same "Stars" George Thomas. He does the "Smoke and solder" section on Ham Nation.

I Think it was on Ham Nation he reviewed those connectors. They worked. But he questioned how strong the joint was physically.

Cold soldered butt joint? How much force required to break the joint, more or less than a double crimped butt joint?

When you soldier stranded wire the solder wicks up the strands and males them stiff and brittle. Then under vibrating condititions they have a greater tendency to break.

If you don't need waterproof connectors these work real well. If a permanent waterproof connection is needed I drip a little liquid tape in the ends.

Link

Yes, they look interesting, but I can not find refills for specific sizes.

I think I would buy their crimp with shrink tube set instead. Large selection of various type of terminals.



Or of you just want butt splices.