67/68/69 cuda dilemma
Heres another. The LH quarter panel top skin had some bondo in it that moisture got under. It had some really hard attached rust scale. I dipped it for 24 hours then scrubbed it with a fine wire brush and TSP water mixture to rinse it. Theres a closeup so you can see how completely it removed the rust down to clean pitted metal. Sandblasting is thorough, but it would never have removed this type of rust as thoroughly. I think different kinds of rust issues require different solutions. Sandblasting is good but not for all kinds of corrosion. This works well for smaller parts as long as they can be submerged. It's a waiting game, then scrub, inspect, and soak again if the rust is still hanging on in spots. My LH rain gutter is still in the soak, because theres a few rust deposits that do not want to dissolve, or come loose. They will though eventually, it's a waiting game.
Heres another. The LH quarter panel top skin had some bondo in it that moisture got under. It had some really hard attached rust scale. I dipped it for 24 hours then scrubbed it with a fine wire brush and TSP water mixture to rinse it. Theres a closeup so you can see how completely it removed the rust down to clean pitted metal. Sandblasting is thorough, but it would never have removed this type of rust as thoroughly. I think different kinds of rust issues require different solutions. Sandblasting is good but not for all kinds of corrosion. This works well for smaller parts as long as they can be submerged. It's a waiting game, then scrub, inspect, and soak again if the rust is still hanging on in spots. My LH rain gutter is still in the soak, because theres a few rust deposits that do not want to dissolve, or come loose. They will though eventually, it's a waiting game.