Mashimaru said:
Most cars i've seen sold on the dealerships, especially the toyota ones have these installed in the engine bay.
I could probably say myself that this wouldn't prevent rust, but rather just slow it down.
You're right. They don't claim to prevent, just protect and slow the process.
The site does like to hype but it also gives good info:
"1. A small, self-regulating , pulsed DC power supply-control module utilizing "smart technology" (in the case of a typical passenger vehicle system about the size of a pack of cigarettes) is the heart of our corrosion proofing systems...
2. A removable modular wiring harness with fused power lead (to permit easy access to the power supply/control module for inspection or for easy transferability of our corrosion control devices to another vehicle.)...
3. One or more of our unique "programmed capacitive couplers". These capacitive couplers, which are attached to the protected metal surface with aircraft grade adhesive, are charged by the power supply/control module and function as if they were the positive half of a capacitor. They are wired to the power supply in parallel (each on individual circuits) and meticulously engineered and controlled so that each serves to produce a measured and specific limited range of capacitance and thus deliver a measured and specific limited range electrostatic charge via capacitive coupling...
Together these three components serve to induce a measured and specific negative electrostatic surface charge on the metal surface being protected (your vehicle's body for instance) thus capacitive coupling treats the metal body as if it were the negative half of a capacitor. This negative surface charge serves to interfere with the normal electrochemical corrosion processes that create corrosion on metals..."
They also explain elsewhere the difference between their new approach versus traditional systems (which I've heard of before, ie. underground pipe systems.) They are basically covering the vehicle with an ongoing static charge.
I'll be the guinea pig. It can't hurt to try. The sale was ending yesterday so I sprang for one at the last minute. Now to find time for the easy install.