Rub it onto clean copper, brass or bronze and the surface turns to bonded silver. No plating tank, no electricity, no cyanide.
It's a bond. Cool-Amp is electroless displacement plating: silver in the powder replaces copper atoms at the surface, so the silver becomes part of it. Only sanding or grinding removes it. It doesn't wipe off, flake or peel.
In a static bolted joint that's enough. The bar carries the current; the silver's job is the interface.
No maximum voltage limit. The silver is the contact surface; voltage and current ratings come from the conductor and equipment, not the plating. Used worldwide in high-amperage applications, and compatible with transformer oil.
Copper, brass and bronze only. Silver needs a base metal it can trade places with.
Sliding contacts wear it away. Switch blades and disconnect jaws grind through the top layer each operation. Re-apply at maintenance, or use Conducto-Lube on the moving face.
Lowest of the three tested: about 23 µΩ (~10%) below bare copper, and slightly below electroplate. Bare copper grows an oxide film that resists current where surfaces touch. Silver's oxide stays thin and conductive.
Municipal water treatment, chlorine generation reactor. A corroded, hot bolted lug was treated in place, with no replacement, then re-scanned. Read the case study
Oily or greasy part? Wash with dish soap first to remove all oils.
Silver has the lowest resistivity of any metal at room temperature, and resists oxidation in air, so the connection stays stable over time.
| Silver | 1.629 |
| Copper | 1.725 |
| Gold | 2.271 |
| Aluminum | 2.733 |
| Zinc | 6.06 |
| Tin | 11.5 |
In mixed-gas corrosion tests (N₂-O₂-SO₂-S₈-H₂O), silver contacts outperformed copper contacts.
“Just tested your product, this stuff is GREAT! Lays down solid silver… It polishes out to a shine.”
“I'm bringing world class product to my customers. I was going to set up a plating bath. I didn't have to do that.”