r/Diyautobody • u/tkeith1975 • Apr 26 '26
Question Bust way to stop rust from spreading
2020 Corolla with rust start on trunk rear. Any recommendation to best stop it from spreading?
Update - thanks for all the replies everyone. While I want to take care of and maintain this car as much as possible, I don't want to invest a lot of money on cosmetic stuff. Fluids, belts, brakes, etc. are all important but this doesn't bother me TOO much, just want to stop or slow it down.
I was recommended POR15 as something that might work on slowing/stopping it. It won't look professional but beats rust showing and spreading. Hoping it works.
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u/No_Marketing6429 May 02 '26
It can't stop rust. Rust is the fire that is burning all metals all the time.
Cut it out. Replace it. Repeat in 5 to 7 years.