comanche13 Posted January 6, 2009 Share Posted January 6, 2009 has anyone used the one from canadian tire ive heard it works really well. Link to comment Share on other sites More sharing options...
earl*t Posted January 6, 2009 Share Posted January 6, 2009 :dunno: What is a rust prevention box? Link to comment Share on other sites More sharing options...
ejndssn Posted January 6, 2009 Share Posted January 6, 2009 not sure if this is what this person is talking about so i did some search and this is what i have found :cheers: http://www.ruststopnorthamerica.com/ not sure if anyone on this site has used something similar I know tha most of these folks here swear by the POR-15 stuff Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 6, 2009 Share Posted January 6, 2009 not sure if this is what this person is talking about so i did some search and this is what i have found :cheers: http://www.ruststopnorthamerica.com/ :rotf: Now that's funny...but, I guess people actually buy them if they are in business :nuts: :shake: Another good "sucker magnet" that is making someone rich... Link to comment Share on other sites More sharing options...
Jerry Posted January 6, 2009 Share Posted January 6, 2009 Interesting idea. Any sciency types on the forum that can tell us if it's a con or not? Boats use sacrificial cathodes(??) to prevent the props corroding but I don't think they're powered. I'd get one if I knew it worked. The testimonials are glowing but they could be totally faked! I checked some of the companies names and they seem real enough. Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 6, 2009 Share Posted January 6, 2009 This is something I've worked a lot with in the past. It a version of cathodic protection for vehicles. Cathodic protection is used extensively on metal piers and other metallic marine infrastructure, and underground petroleum pipelines and tanks. Basically it uses a rectifier (in vehicle applications a battery) to create low amperage DC current flow (milliamps) through the metallic structure to an anode bed buried in the ground or the sea. Anode beds, usually zinc compound rods, are cabled into the circuit and have less resistance to corrosion than the protected structure, thus they oxidize (rust) and deteriorate faster than the protected structure. They are "sacrificial lambs" and must be constantly replaced to keep the DC current flow flowing and continue the cathodic protection on the structure. I used to work at POL (Petroleum, Oil, & Lubricants) piers and tank farms in the Philippines and other places (Nam) and part of my job was maintaining the cathodic protection system for underground/undersea structures. All this being said, I have no experience with vehicle cathodic protection systems, but these systems have been around for many many years and they work very well if maintained correctly. I don't see any reason why a well designed CP system could not work on a vehicle. 'Course I don't need one in 'Bama. :smart: Link to comment Share on other sites More sharing options...
comanche13 Posted January 6, 2009 Author Share Posted January 6, 2009 yeah there in a few car shows ive watched also and ive heard they work great for a vehicle that is rust free already it prevents the rust from happening Link to comment Share on other sites More sharing options...
aemsee Posted January 6, 2009 Share Posted January 6, 2009 I used to install the Rust Evader units many years ago. Total useless crap. I tried to talk people out of them, which pissed off the parts and sales guys.There was no sacrificial anode, with the rust prevention purported to come from a slight electrical charge generated by two boxes hooked to the inner front fenders. But the customers had the satisfaction of opening the hood and looking at a blinking light on the control box, confident that it was keeping their Hyundai Excels from disintegrating in the NY road salt. Link to comment Share on other sites More sharing options...
mjeff87 Posted January 6, 2009 Share Posted January 6, 2009 The guys on Trucks! TV installed one on a resto-mod project vehicle they were working on, so it must work :shake: :rotfl2: Jeff Link to comment Share on other sites More sharing options...
CEThomas Posted January 6, 2009 Share Posted January 6, 2009 The Navy has a system like this in use on ships and it works. That being said, it only slows the rust process and must be installed while it's new and not after it has rusted. Link to comment Share on other sites More sharing options...
Randy in Maine Posted January 6, 2009 Share Posted January 6, 2009 Ship, pipelines, and moving vehicles are differnt things. You would be better served to spray this on in the fall.... http://www.mowpart.com/fluid-film-c-328.html Similar to "waxoil" in protection if you have ever seen it. Link to comment Share on other sites More sharing options...
mvusse Posted January 7, 2009 Share Posted January 7, 2009 The physics work if you are immersed in something that can conduct electricity, like water (ships, piers) or the ground (pipelines). Vehicles, however, operate in air, which does not conduct electricity. It could technically possibly be made to work with two grounding straps dragging along the ground, but no system I have seen does this. The boxes are designed to look nice and complicated to make one believe it does what is really being done by the paint job, galvanized sheet metal and e-coated or polyester covered undercarriage used on most modern cars. Link to comment Share on other sites More sharing options...
Eagle Posted January 7, 2009 Share Posted January 7, 2009 It's called cathodic protection, and everything I have read about it suggests that it works very well. (That's "cathodic" protection, not "cathartic.") Link to comment Share on other sites More sharing options...
COLAB Posted January 7, 2009 Share Posted January 7, 2009 it's just good for boats on the water only, for the cars it's not true :no: Link to comment Share on other sites More sharing options...
jbhill Posted January 8, 2009 Share Posted January 8, 2009 a couple of cans of wd 40 will work the same way to lol. Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 8, 2009 Share Posted January 8, 2009 It's called cathodic protection, and everything I have read about it suggests that it works very well. (That's "cathodic" protection, not "cathartic.") Gee, I think I said that about six times above. :D Link to comment Share on other sites More sharing options...
69CamaroSS Posted January 8, 2009 Share Posted January 8, 2009 This sounds like a job for mythbusters!! :popcorn: Link to comment Share on other sites More sharing options...
Eagle Posted January 9, 2009 Share Posted January 9, 2009 It's called cathodic protection, and everything I have read about it suggests that it works very well. (That's "cathodic" protection, not "cathartic.") Gee, I think I said that about six times above. :D Which, "cathodic" or "cathodic"? Don't tell me you're one of THOSE people who fail to appreciate bad puns? Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 9, 2009 Share Posted January 9, 2009 Nope - completely missed that good pun. :doh: Brain fart.........again Link to comment Share on other sites More sharing options...
atlnq9 Posted January 11, 2009 Share Posted January 11, 2009 It is possible to make it work, by using electricity it probably aids in the efficency of one sacrificial anode to work for the whole vehicle. I am a metallurgist but I don't know any elctrical stuff, you would need someone that knows both to see if the electricity helps... Sacrificial anodes have been used in vehicles, what do you think galvanizing is. and we have all seen how galvanic cell corosion works, ever seen a steel pipe conected to a brass valve or fitting? The steel corodes very quickly if it is exposed to water or something and the fitting will just fall right off in perfect shape... Yeah, and I think some one also mentioned it is used on underground pipes, they use magnesium primarily for that... Link to comment Share on other sites More sharing options...
pingpong Posted January 12, 2009 Share Posted January 12, 2009 I worked at a bosy shop some yrs ago, and a late 70's ford came in with lil zinc anodes attatched everywhere on the vehicle, and suprisingly the rig had no visible rust on it. Mind you this truck was used by a waterman to haul crabs to the pickers. Just needed a reapiant and some dent repair. :eek: Link to comment Share on other sites More sharing options...
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