I saw a practical sailor review for a lubricant/protectant TC-11 as a corrosion
protector. They sprayed a bunch of cheap
radios with different products and then put them on a board inside a saltwater aquarium just above the water
. Only the radio
with TC-11 survived, most turned to rust. Anyway, I bought a can and have been happily using it around the boat for now over a year. Seems to work as described preventing rust and works very well on freeing up things that have seized. Spray it on a frozen bolt, walk away for 30 minutes, and then come back and typically it does the job. I also found it excellent as a spray protectant/polish on stainless steel
surfaces (we've got a stainless fridge and it gets all of the smudges off). It doesn't form a film like boeshield or become sticky like many of the other products. I basically use it whenever I take anything apart and I'm putting it back together, except for dissimilar metals where you'd need a specialized product. I also give a quick spritz on the exterior metal fittings on standing rigging
, clasps, hooks, turnbuckles, etc. My wifes central locking system was sticking and unable to unlock the doors, a squirt and it's resolved, door squeeks, fixed. What can I say, live on a boat for 10 years and something that helps stop rust is absolutely lovely.