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PASSIVE 8
Stainless Steel Passivation Solution
This process is required to restore the chromium oxide layer to stainless steel road tankers, ISO tanks, and IBC’s. This formulation is a stellar performer, especially where a prior cargo initiated hydrolysis, causing minimal superficial rust. See “Passivation FAQ.”
PASSIVE 8 is an accepted scientific method used in stainless steel passivation, following ASTM-A967 recommendations. It is manufactured with nitric acid, a mild oxidant, in the exact percentages specified by the standard, thereby minimizing material handling. PASSIVE 8 restores chromium oxide dynamically so that the tank can load immediately after the process.
PRODUCT DESCRIPTION
PASSIVE 8 restores the chromic oxide surface film on stainless steel, rendering it inert and restoring it to ‘food-grade’ status. PASSIVE 8 is a concentrated nitric acid solution that is applied to freshly cleaned stainless steel vessels by fogging or spraying. After the recommended contact time and rinsing, the metal is ready for use. PASSIVE 8 can be used on all grades of AlSl 300 Stainless Steels, including 304, 304L, 316, 316L, 316T, and 321.
For best results apply with Fogging device, such as the John-Henry® Simplicity Fogger, which creates a 10 micron fog to deliver the chemical, thereby compensating for the high surface tension of nitric acid.
USES AND DIRECTIONS
Use PASSIVE 8 for stainless steel ISO tanks, tankwagons, and IBC’s. Also restores the chromium oxide passive film in AISI 300 Series Stainless Steel Vessels (304, 304L, 316, 316L, 316T, 321) in the process. Prior to application of PASSIVE 8, tank should be clean and free all residues. PASSIVE 8 will not work when used as a cleaner.
Forty foot single compartment trailers as well as large ISO tanks require 10 gallons of PASSIVE 8. Two, three or four-compartment trailers require less per compartment, but the same ten gallons for the sum. After tank has been cleaned, remove presolve equipment and seal tank. PASSIVE 8 application and standing time should not exceed 45 minutes.
Or fill out our Quick Call Request form below.
PACKAGING
55 Gallon Drum – JBC4158
Health hazard summary
Causes severe irritation and burns to skin. Causes severe irritation, burns, and damage to eyes. Mists and vapors can cause irritation to eyes, nose, throat, and respiratory tract. Ingestion can damage mouth, throat, and other tissues and may be fatal.
SPECIFICATIONS
Appearance .Clear, water white liquid, acid odor
pH ……………………………………………….. < 1
Specific Gravity …………………………… 1.02
Flash Point …………………………………None
Dilution ……………………………………. None*
Coverage………………………………1.5 gal.**
Applicator*** ……………… Simplicity Fogger
Storage Stability ……….. ……..Excellent****
Freeze-Thaw Stability…………..Freezes at very low temperature.
*Must be used as is
**1000 gallons of tank capacity
***Recommended
****>2 years normal conditions.
features & Benefits
✅ Ready To Use – no mixing required
✅ Can be fogged via Simplicity Fogger®
✅ Removes superficial rust
✅ Does not require alkaline neutralization
✅ Restores chromium oxide layer in 45 minutes
Or fill out our Quick Call Request form below.