I know all ppl are experts in all things, but this is my wheelhouse. Heres what my family Has done for generations. Dont use an undercoating that gets hard. Like you said, it can rust under and go to poo. Heres what we do, get you 1 quart of used oil, 1 quart of trans fluid, 1 tube of grease, and 2 wax gaskets for the toilet. No plastic, just wax. Put all in an old pot, heat it up, and either make a sprayer with a harbor freight spray gun kit or buy for $50. We've always knocked off the heavy rus and phosphoric aci. We used the 60% stuff. What u buy is about 15, 25%. We have sprayed this used oil, trans, wax, grease stuff all under, in logging machinery, tractors, cars, trucks, etc. I helped a buddy redo a bed on a old chevy truck and he forgot to do repair and so i had to clean it off. Wire brush, heat, boiler hot water pressure washer. Laquer thinner, Nothing would work. It just smears. 😂 ened ip draining some gas fro.a tank we removed, scraped as best i could, scrubbed it with a wire brush and scotch brite, and kept spraying with that gas and hot water pressure washer after hours of that it was finally clean. He was impressed cause the mix sounds crazy. If u think about it, have u ever seen rust where any metal was that a machine leaked on? No. Now mix all of those, and it's a hwll of a mix. You can use mineral oil also. Boiled linseed oil, etc. You can use what u like. I've been doing this for ppl for years. There is nothing wrong with your way at all. I do about same using acid, then a product called mastercaot made for stuff like bridges. Or implement paint like john deere black. Then use this over that paint. Lasts a lifetime. And the used oil, trans fluid costs u nothing. Im sure you have a tube of grease and can get wax gaskets or bees wax easily. Have a good 1 bud. Also drill some holes if u dont have access to cab corners, rockers and pour in some melted Vaseline or mineral oil to keep them rust free and in doors after cleaning and plugging drains. Let sit a week driving round then drain and savw for next year.
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I know all ppl are experts in all things, but this is my wheelhouse. Heres what my family
Has done for generations. Dont use an undercoating that gets hard. Like you said, it can rust under and go to poo. Heres what we do, get you 1 quart of used oil, 1 quart of trans fluid, 1 tube of grease, and 2 wax gaskets for the toilet. No plastic, just wax. Put all in an old pot, heat it up, and either make a sprayer with a harbor freight spray gun kit or buy for $50. We've always knocked off the heavy rus and phosphoric aci. We used the 60% stuff. What u buy is about 15, 25%.
We have sprayed this used oil, trans, wax, grease stuff all under, in logging machinery, tractors, cars, trucks, etc. I helped a buddy redo a bed on a old chevy truck and he forgot to do repair and so i had to clean it off. Wire brush, heat, boiler hot water pressure washer. Laquer thinner, Nothing would work. It just smears. 😂 ened ip draining some gas fro.a tank we removed, scraped as best i could, scrubbed it with a wire brush and scotch brite, and kept spraying with that gas and hot water pressure washer after hours of that it was finally clean. He was impressed cause the mix sounds crazy.
If u think about it, have u ever seen rust where any metal was that a machine leaked on? No. Now mix all of those, and it's a hwll of a mix. You can use mineral oil also. Boiled linseed oil, etc. You can use what u like. I've been doing this for ppl for years. There is nothing wrong with your way at all. I do about same using acid, then a product called mastercaot made for stuff like bridges. Or implement paint like john deere black. Then use this over that paint. Lasts a lifetime. And the used oil, trans fluid costs u nothing. Im sure you have a tube of grease and can get wax gaskets or bees wax easily. Have a good 1 bud. Also drill some holes if u dont have access to cab corners, rockers and pour in some melted Vaseline or mineral oil to keep them rust free and in doors after cleaning and plugging drains. Let sit a week driving round then drain and savw for next year.
Great advice! Sounds like you’ve done this a couple of times. I appreciate you sharing your experience! 😊
@ModernPrairieHomestead I have A LOT. It's cheap, and easy.
That is a nice truck
Thank you! 😊