After the RustBlast step, I see surface rust inside the tank. Is that normal?
Yes, this is normal. Because there is usually moisture in the air, it is quite common for a metal surface to flash rust after being rinsed with water. RustBlast is formulated to leave behind a dusting of zinc phosphate, which aids the adhesion of Tank Sealer. Zinc phosphate is white in color.
So when the tank is rinsed after the RustBlast step, that white zinc phosphate dusting mixes with the brown surface rust. This often makes the surface rust look much worse than it actually is, since most of what you're seeing is the zinc phosphate.
When to Proceed If what you have is a light dusting on the surface and the tank is bone dry, you are good to proceed to the Tank Sealer step. |
Pro Tip You can minimize the amount of surface rust by drying the tank immediately and quickly after rinsing with water following the RustBlast step, though this isn't necessary. |
Please review the complete Tank Sealer Application Directions before beginning your project.
Ready for the Next Step?
Once the tank is dry, move on to Tank Sealer to lock in lasting protection.
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