Biocide for ULSD, Heating Oil, Biodiesel and Gasoline
  • Solvent Based
  • Water dispersible
  • Broad Spectrum
  • Two Types of Chemistry

MicrobiKILL® is a solvent-based preservative used to eliminate and/or prevent the growth of bacteria and fungi in finished fuels (e.g. ULSD, biodiesel, gasoline, bunker fuel oil). MicrobiKILL® is also used to prevent the biodegradation of crude, refined and feedstock oils and fats (e.g. poultry, soybean, aromatic, paraffinic, naphthenic) during storage.

A proprietary and synergistic blend, MicrobiKILL® is:
- Broad spectrum: kills bacteria, fungi and algae
- Active in both phases of the system: partitions into both fuel and water
- Fast acting: 100% bacterial kill in just two hours
- Two types of chemistry confuses the bacteria to keep it from becoming resistant to treatment

Being solvent based, MicrobiKILL® is fully combustible and will not form combustion residues or hazardous by products when used. MicrobiKILL® is non-corrosive, non-emulsifying, and has long term fuel stability.

MicrobiKILL® imparts a minimum amount of sulfur and is approved for use in ultra low sulfur diesel applications.

Treat Rate:
Moderate contamination:
1 gallon to 10,000 gallons (100 ppm)
Severe contamination:
1 gallon to 5,000 gallons (200 ppm)

Package and Handling
MicrobiKILL® is a liquid packaged in non-returnable drums and in bulk. Refer to Material Safety Data Sheet for suitable materials of constructions for handling and storing this product. Improper handling of this product can be injurious to workers. Observe all safety precautions shown on the label and in the material Safety Data Sheet. MicrobiKILL® is not approved for use in aviation fuels.

Typical Product Characteristics
Active ingredients:
Methylene bis(thiocyanate)
2-(thiocynomethylthio) benzothiazole
Inert ingredients
Density at 25°C (77°F)
1.03 g/cm³
Weight per U.S. gallon
8.6 lb
pH (100 ppm in water
Flash point

MicrobiKILL® was tested in the laboratory to compare its effectiveness versus three other leading biocides. The microorganisms used in the study were the bacterium Pseudomonas aeruginosa and the fungus Cladosporium resinae, both which are widely found in fuel. the results of the study show that MicrobiKILL® provides excellent results at the minimum recommended does after one and four weeks (Figures 1 and 2). Brand X provided similar results but costs 2-3 times as much as MicrobiKILL®. Brands Y and Z did not perform well, especially after 4 weeks.