IMPA:
Combat microbial contamination in your fuel systems with AMERSTAT® 25DM, a powerful and cost-effective microbiocide treatment designed for low sulfur marine fuels, including VLSFO, ULSFO, and bio-derived fuels. With proven performance against bacteria and fungi at the fuel-water interface, AMERSTAT 25DM ensures reliable engine operation, improved fuel quality, and protection against corrosion and filter clogging.
Total Microbial Control: Eliminates bacteria and fungi that degrade fuel quality.
Reduces Corrosion: Prevents acid-induced corrosion caused by sulfate-reducing bacteria.
Minimizes Filter Plugging: Stops biomass buildup that clogs filters and injectors.
Dual-Phase Kill: Active in both oil and water phases for comprehensive protection.
Easy to Dose: Compatible with multiple fuel delivery methods and storage conditions.
Cost-Effective: One solution for both initial and ongoing microbial protection.
Marine diesel, gas turbine, and auxiliary boiler fuel tanks
Stored fuels with moisture buildup
Preventive maintenance and reactive treatment of contaminated tanks
AMERSTAT® 25DM is a concentrated oil-soluble biocide with a density greater than water, allowing it to migrate to the water phase at the bottom of fuel tanks where microbial colonies grow. The product is designed for residual and distillate fuels stored in ISO 8217 compliant systems.
Appearance: Amber liquid
Odor: Organic
Density @ 25°C: 1.09 g/cm³
Flash Point (PMCC): 96.1°C
pH (1% solution): 6.5
Solubility: Complete
Storage: Avoid temperatures > 60°C or freezing
Routine Maintenance: 1:25,000 (1L per 25 tons of fuel)
Initial Cleaning (Contaminated Systems): 1:12,500 (1L per 12.5 tons of fuel)
Retreatment recommended every 4 weeks or with each new fuel delivery
Preferred method: Add directly to the water bottoms via drain valve or tank sounding pipe before bunkering.
Alternative methods: Slug feed from top ports or inject continuously during loading.
Sampling & Testing: Inspect every 3–4 months using onboard Sulfate Reducers Test Set (PCN 1701019).
25-liter containers (PCN 6981402)
200-liter drums (PCN 6981428)
U.S. EPA Registration No.: 56473-4
For use outside EU and Canada. EU alternative: MERGAL MC14, Canada alternative: ACTICIDE 14
Safety at sea is non-negotiable. When an emergency arises, the quality and reliability of your Fire, Rescue & Life Saving Equipment can mean the difference between a controlled situation and a crisis. At MariTeam, we understand the unique challenges of maritime safety, and for over 70 years, we have been a trusted partner for shipowners, operators, and maritime professionals worldwide.
Safety regulations in the maritime industry are stringent, and compliance is essential. That’s why we work with industry-leading manufacturers who meet the latest ISO, SOLAS, and other international standards. Our partners share our dedication to safety, reliability, and innovation—ensuring that every piece of equipment we supply has been tested and approved for use in the world’s most demanding environments.
