October 8, 2025Oct 8 comment_10012 I have a fuel tank from a 1973 Honda motorcycle which has quite a bit of rust. I treated it with paint stripper to get remnants of old tank liner out, then rinsed with paint stripper wash. Then I applied Step 1, then rinsed with water and let dry. Then I applied RustBlast, moving it around the tank for a full 3 hours. It seems to have had no effect (see attached photos of the tank after treatment). What am I doing wrong? Or, is that tank liner I'm looking at and not rust? (It's my first time doing this) Thanks in advance for any clues! Link to comment https://success.kbs-coatings.com/topic/7257-rustblast-for-3-hours-seems-to-have-no-effect/ Share on other sites Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Report Share this post
October 8, 2025Oct 8 comment_10013 During the KBS Klean step, did you use a chain in the tank and aggressively shake the tank to remove all loose, flaky rust? Of Note: RustBlast is designed to etch the rust that is in the tank. This is needed for incredible and long-lasting Tank Sealer adhesion. This is shared to help clear up confusion on the role or RustBlast during the Tank Sealer prep process. Link to comment https://success.kbs-coatings.com/topic/7257-rustblast-for-3-hours-seems-to-have-no-effect/#findComment-10013 Share on other sites Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Report Share this post
October 8, 2025Oct 8 Author comment_10014 I used a large collection of small and large bolts/screws and shook them around quite a lot. Nothing seems to be flaky or loose. You wrote "etch the rust" -- does that mean I can apply tank sealer over what's in there now and it'll bond to the rust that's left there? Link to comment https://success.kbs-coatings.com/topic/7257-rustblast-for-3-hours-seems-to-have-no-effect/#findComment-10014 Share on other sites Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Report Share this post
October 8, 2025Oct 8 comment_10015 Just now, Stefan said: You wrote "etch the rust" -- does that mean I can apply tank sealer over what's in there now and it'll bond to the rust that's left there? Absolutely. RustBlast chemically etches the rust and leaves a dusting of zinc phosphate which enhances the Tank Sealer adhesion and the Tank Sealer seals up that rusty surface. What other questions might you have? Link to comment https://success.kbs-coatings.com/topic/7257-rustblast-for-3-hours-seems-to-have-no-effect/#findComment-10015 Share on other sites Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Report Share this post
October 8, 2025Oct 8 Author comment_10017 OK, I'll seal it then. Thanks so much for your help! Link to comment https://success.kbs-coatings.com/topic/7257-rustblast-for-3-hours-seems-to-have-no-effect/#findComment-10017 Share on other sites Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Report Share this post
October 8, 2025Oct 8 comment_10018 Our pleasure. Please reach back out should you have any additional questions. Link to comment https://success.kbs-coatings.com/topic/7257-rustblast-for-3-hours-seems-to-have-no-effect/#findComment-10018 Share on other sites Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Report Share this post
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