The cable's galvanized, so what coating can I add to the cable so it's rust proof and sun-proof? It should be clear and barely visible. And it shouldn't be too expensive.

We live in the tropics, so we get 95° weather, tons of sun, and we're very close to the ocean. It can't crack, turn yellow, etc.


  • 2
    I guess that just using stainless steel cable is out of the question? Because that's really the best answer.
    – JPhi1618
    Jan 3 '18 at 19:40
  • 2
    If it's galvanized, then it's already rust-proof. But since you're asking about making it sun-proof then I'm not sure we're talking about the same thing... What do you mean by "galvanized", since to me that means hot-dipped or electroplated with zinc?
    – brhans
    Jan 3 '18 at 19:40
  • Clear lacquer, enamel, or acrylic paint?
    – Hari Ganti
    Jan 3 '18 at 19:45
  • 1
    NASA wrote the book on protecting metals in tropical oceanfront environments. Http://corrosion.ksc.nasa.gov Jan 3 '18 at 19:45
  • @JPhi1618: I'd gladly buy stainless steel if it's 1/4" x 250' for $65 plus free shipping outside of the US.
    – rbhat
    Jan 3 '18 at 19:50

If you are too cheap (re: specific price presumably that of the galvanized cable) to do it right, don't expect miracles - being cheap is expensive (every time you have to replace the cheap item, + the cost of each failure.)

Galvanized is already sun-proof, the only way to make it not sun-proof is to coat it with plastic that's damaged by the sun.

It's also rust-resistant, but CHEAP cable will be minimally coated with zinc and thus the sacrificial protection of the zinc will soon wear through, exposing steel, and rusting. High-quality galvanized cable will have a thicker coating and a higher initial price tag.

That or a proper grade of stainless (be sure to factor in the salt exposure for "near ocean" in picking an alloy) will be less costly in the long run than cheap galvanized cable, assuming the rest of the system involving the cable will survive a hurricane. If not, you might just as well use cheap cable and replace it when you replace/rebuild everything after a hurricane.

  • The problem is that this information is not included in the item's description. How do I know how much zinc it has?
    – rbhat
    Jan 3 '18 at 21:14

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