--- title: Coating Tank Interior Product Recommendations description: Our suggestion is 1 coat of Chemical Mastic High Build Epoxy as a primer / intermediate and finish coat of ARM517 (contact per requests and pricing) as the topcoat. If you have pitting from corrosion, --- [Skip to content](https://help.armorpoxy.com/knowledge/coating-tank-interior-product-recommendations#main-content) English Show submenu for translations [![et\_black\_logo\_horizontal.png\]](https://help.armorpoxy.com/hs-fs/hubfs/email_template_files/et_black_logo_horizontal.png?height=44&name=et_black_logo_horizontal.png)](https://armorpoxy.com/) Open main navigation Close main navigation - English Show submenu for translations - [Go to armorpoxy.com](https://armorpoxy.com/) [Go to armorpoxy.com](https://armorpoxy.com/) Product Support Help Center - There are no suggestions because the search field is empty. 1. [Help Center](https://help.armorpoxy.com/knowledge?hsLang=en) 2. [Product Info and Questions](https://help.armorpoxy.com/knowledge/product-info-and-questions?hsLang=en) # Coating Tank Interior Product Recommendations Our suggestion is 1 coat of [Chemical Mastic High Build Epoxy](https://armorpoxy.com/chemical-mastic-high-build-epoxy) as a primer / intermediate and finish coat of ARM517 (contact per requests and pricing) as the topcoat. If you have pitting from corrosion, we recommend a 3 coat system ([Chemical Mastic High Build Epoxy](https://armorpoxy.com/chemical-mastic-high-build-epoxy), [Chemical Mastic High Build Epoxy](https://armorpoxy.com/chemical-mastic-high-build-epoxy), ARM517). If the steel is in good condition, it can be a two coat system ([Chemical Mastic High Build Epoxy](https://armorpoxy.com/chemical-mastic-high-build-epoxy), ARM517).   We’ve used a bunch of applications with ARM 517 in diesel fuel and it works well as a tank linking for it.   For the prep side, we want to make sure you have fully removed the rust by either abrasive blasting , angle grinder, needle gun, etc. If the rust isn’t removed to bare steel, it’s common to see rust come back through quickly in the tank lining industry. Tank linings require a higher level of surface prep then standard steel coating jobs.   We reference a standard called “SSPC-SP-11”. Below is summary of it.   SSPC-SP 11 is the **Surface Preparation Specification for Power Tool Cleaning to Bare Metal**. It’s commonly used when abrasive blasting isn’t practical but a near-white or commercial blast-cleaned surface is still desired. Here’s a breakdown: --- ### **Definition** - **SP-11** requires the use of power tools (like needle guns, grinders, sanders, or rotary tools) to remove rust, coatings, mill scale, and contaminants down to bare metal. - The goal is to achieve a **minimum 1 mil (25 μm) surface profile**, unless otherwise specified. --- ### **Key Requirements** - All visible rust, paint, and mill scale must be removed so only **shiny bare metal** remains. - The surface must have a **roughened profile** for coating adhesion. - No polish or burnishing is allowed—the finish must be suitable for coating. - Crevices, pits, and corners must be addressed, although tightly adherent material in pits may remain if it cannot be removed without excessive metal los   - [Help and Support](https://help.armorpoxy.com/knowledge/help-and-support?hsLang=en#main-content) - [Email Product Support](https://help.armorpoxy.com/knowledge/help-and-support?hsLang=en#email-product-support) - [Contact Support](https://help.armorpoxy.com/knowledge/help-and-support?hsLang=en#contact-support) - 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[SupraTile: Interlocking Floor Tiles](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#supratile-interlocking-floor-tiles) - [ArmorRenew: Wood & Concrete Resurfacer](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#armorrenew-wood-concrete-resurfacer) - [Job on a Pallet Kit](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#job-on-a-pallet-kit) - [ArmorPoxy II: Epoxy System](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#armorpoxy-ii-epoxy-system) - [ArmorUltra: Epoxy System](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#armorultra-epoxy-system) - [BallistiX: Indoor / Outdoor Sealer](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#ballistix-indoor-outdoor-sealer) - [Spartacote](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#spartacote) - [SPGX: Polyurea Coating](https://help.armorpoxy.com/knowledge/prep-and-application?hsLang=en#spgx-polyurea-coating) - 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