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Steve L

RustSeal over factory rubberized frame coating

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I just bought a 2016 GMC Sierra and the frame has what appears to be a factory rubberized or wax coating on the frame.  This coating is peeling off along many of the edges and welds but is in good shape elsewhere.  Must all of this coating be removed or stripped prior to using the klean/blast/seal method or can I just remove the loose/peeling parts and klean/blast/seal over the rest?  Any experience?  Thanks!

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It is always best practice to remove the old paint so RustSeal can go down on a prepped bare surface. That said, if the factory coating (meaning not a waxy film) is still adhered really well, you can scuff up the previous coating with 300 grit, clean the surface with KBS Klean and then apply RustSeal over that.

Your Success is Extremely Important To Us! We want your project to be a complete success so please be sure to read through carefully the following documents which will ensure your success using KBS Coatings.
RustSeal Directions: https://www.kbs-coatings.com/rustseal-directions.html
RustSeal: https://www.kbs-coatings.com/RustSeal.html
RustSeal Kits: https://www.kbs-coatings.com/stop-rust-paints.html
RustSeal Application Videos: https://www.kbs-coatings.com/instructional-videos.html#rs
RustSeal Flow Chart: https://www.kbs-coatings.com/rustseal-flow-chart.html
RustSeal How-To Section: https://www.kbs-coatings.com/how-to-use-kbs-coatings.html
RustSeal Fix-It Guide: https://www.kbs-coatings.com/fix-it-guide-rustseal.html

Please let us know if that helps and if you have any additional questions.

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1 hour ago, KBS Coatings said:

It is always best practice to remove the old paint so RustSeal can go down on a prepped bare surface. That said, if the factory coating (meaning not a waxy film) is still adhered really well, you can scuff up the previous coating with 300 grit, clean the surface with KBS Klean and then apply RustSeal over that.

Your Success is Extremely Important To Us! We want your project to be a complete success so please be sure to read through carefully the following documents which will ensure your success using KBS Coatings.
RustSeal Directions: https://www.kbs-coatings.com/rustseal-directions.html
RustSeal: https://www.kbs-coatings.com/RustSeal.html
RustSeal Kits: https://www.kbs-coatings.com/stop-rust-paints.html
RustSeal Application Videos: https://www.kbs-coatings.com/instructional-videos.html#rs
RustSeal Flow Chart: https://www.kbs-coatings.com/rustseal-flow-chart.html
RustSeal How-To Section: https://www.kbs-coatings.com/how-to-use-kbs-coatings.html
RustSeal Fix-It Guide: https://www.kbs-coatings.com/fix-it-guide-rustseal.html

Please let us know if that helps and if you have any additional questions.

The problem is that it's not really scuffable or sandable since it's rubberized - it will just kind of smear around.  The process of removing all of this would simply be impossible.  Hopefully your product will at least leach into where the rust has set in on the edges and get a decent bond to the rest - it's pretty much my only option at this point.  Thanks for the reply.

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