Brian, that is some interesting stuff: Looks like it is closer to the Eastwood stuff. I noticed this posed question on the Amazon listing which addresses our question directly:
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Question: How does the VHT Rust Converter compares to the Rustoleum Rust Reformer? Thx.
Answer: This is an interesting question. I tried both...side by side on the same area on heavily rusted and pitted farm equipment 1/4" steel. There was absolutely no comparison, the VHT worked the Rustoleum did NOT. I like other Rustoleum products but their rust converter just doesn't cut it. VHT rust converter is outstanding. However, I was looking at the one star reviews and was wondering what those folks did differently than what I did? Some claim the VHT doesn't work. Something must be different! The only thing I can imagine is that they used it differently and there are two possibilities here. To start with, my problem was about the worst case scenario I can imagine. Deep, 1/16" rust pits that even a SS wire wheel can't get into. This is where a little common sense goes a long way. After wire brushing the best I could, there was still a substantial amount of rust down in those deep rust pits. So, rather the follow the directions on the can (couple of light coats)...which would never saturate the relatively thick rust in the bottom of those pits, I started with a first heavy coat...heavy enough to saturate the rust in the bottom of those rust pits. All the rust pits turned black while the freshly wire brushed steel surface remained clear. Then, I sanded the surface and applied another light coat of VHT rust converter. Then I covered that with self-etching primer. THAT works great and you are now ready for painting. Excellent bonding and no more rust!
Incidentally, I ran a number of tests over a period of several months, exposing the surface at various stages to water and time. The process I just described worked best. Be sure to follow the instructions regarding timing. These self-reacting materials must be applied within minutes to insure the layers bond together well.
So, to answer my own question...in some cases the user may not have applied enough on the FIRST coat to saturate the rust. In another scenario, perhaps they didn't follow the instructions on timing. Just my guessing as to what they might have done wrong. see less
By Rick Glackin on January 3, 2015
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But check all the questions/answers on the listing. Others seem to have different opinions.