KATHON™ FP 1.5 treats and prevents microbiological growth in hydrocarbon fuels. It is the world’s leading broad-spectrum preservative and disinfectant for treatment of diesel, aviation, kerosene and heating fuels. In contrast to fuelclear's M68 range, KATHON™ FP 1.5 is designed for industrial volumes of fuel.
KATHON™ FP 1.5 is used by aviation, shipping, and major companies globally for preservation and safe protection against contamination by microbial growth. The effectiveness of KATHON™ FP 1.5 has been proven over a number of years and it has extensive approvals endorsing its use in a wide range of fuel types. KATHON™ FP 1.5 combines exceptional activity with broad spectrum performance. Consequently it is effective at very low use levels against all commonly occurring fuel contaminants (bacteria, fungi and yeast). Furthermore, the active ingredients of KATHON™ FP 1.5 are non-persistent in the environment, giving the product good environmental acceptability.
KATHON™ FP 1.5 is designed to cause inhibition of microbial growth upon contact, and quickly result in cell death. The exact time to kill all microbes in a fuel will vary, but will typically be between 6 and 36 hours. KATHON™ FP 1.5 is effective in systems containing both fuel and water. Unlike other fuel treatment biocides, the active ingredients in KATHON FP 1.5 are not deactivated by water.
KATHON™ FP 1.5 contains a 3:1 ratio mixture of 5-chloro-2-methyl-3(2H)isothiazolone and 2-methyl-3(2H)isothiazolone (CAS N°55965-84-9), (abbreviated name CMIT/MIT). KATHON™ FP 1.5 is a solution of the technical grade of the active ingredient, CMIT/MIT, in dipropylene glycol at a nominal value of 1.5% of active substance. This biocidal substance has been notified under the Biocidal Products Directive (BPD; notification # 408) and is registered with the United States Environmental Protection Agency (US EPA). KATHON™ FP 1.5 is supplied in 5kg flasks, 20kg drums, 215kg drums and 1000kg IBC's.
Water and sludge should be removed from fuel tanks before application of the biocide. 100ppm v/v of KATHON™ FP 1.5 as supplied should be used to achieve microbial control, as described by EU BPD and US EPA regulations. To achieve this, the user should treat every 10,000 litres of aviation fuel with 1 litre of KATHON™ FP 1.5. The biocide should be added in such a manner so as to allow good mixing and distribution across the fuel. Ideally, this should be into a fuel supply line to ensure agitation. A contact time of up to 24 hours is recommended, depending on the severity of infection. More information on KATHON™ FP 1.5 in aviation fuel can be found here.
Water and sludge should be removed from fuel tanks before application of biocide and again after the retention period. KATHON™ FP 1.5 has been tested and found effective in a wide range of fuels, including diesel, petrol, ULSD, biodiesel, kerosene, gasoline, and other fuels used in marine, aviation, automotive and home heating applications.
KATHON™ FP 1.5 is typically dosed at 200 to 300 ppm (200ml to 300ml per 1000L fuel) for curative treatment (i.e. when there is evidence of bacterial contamination). A minimum residence time of 12 hours should be allowed, before the fuel is used, though 24 hours is recommended. The biocide should be added in such a manner so as to allow good mixing uniform distribution of the biocide across the fuel.
KATHON™ FP 1.5 can also be used as a preventative/maintenance measure (to guard against bacterial contamination) in fuels that lack microbial contamination. For such a use, the recommended dosage is 100 to 150 ppm (100-150mL per 1000L fuel). The biocide should be added in such a manner so as to allow good mixing and uniform distribution of the biocide across the fuel. In such a case the residence time should still be at least 12 hours. Extreme care must be taken to avoid the addition of a preventative/maintenance level dosage of KATHON™ FP 1.5 to a heavily contaminated fuel system.
KATHON™ FP 1.5 can also be used as a shock biocide, for fuels that are heavily contaminated. If this is the case, doses up to 1000 ppm can be administered (1L biocide per 1000L fuel) according to the BPD. The US EPA allows the use of up to 400 ppm KATHON™ FP 1.5 in heavily contaminated fuel systems (400ml biocide per 1000L fuel). In this case, the residence time is recommended to be a full 24 hours.
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Following a range of problems in their diesel fleet as a result of poor quality fuel, Southern Railway initiated the use of KATHON™ FP 1.5 in their fuel supply. Their fleet had previously suffered a range of issues resulting from this growth and their filters repeatedly blocked causing engine shut downs - often during service. The commercial costs of this were high. KATHON™ FP 1.5 quickly stopped microbial growth and prevented further growth from occurring:
Following the introduction of KATHON™ FP 1.5, Southern wanted to have the biocide continually dosed into their fuel using an automated dosing system. Our engineers designed and built an additive dosing system to fit quickly and easily into their fueling setup:
Southern have been extremely pleased with the results. Southern subsequently won the Gold & Silver spanner awards as a result of the improved reliability afforded them by KATHON™ FP 1.5:
"The automated dosing system and additive supply has been key to the recent Golden & Silver Spanner awards. The system helped Southern become the first operator to win both Gold and Silver spanners, and has helped significantly in reducing fleet reliability incidents. The system has also improved filter life and saved servicing costs."
Southern have continued to use the injection system with KATHON™ FP 1.5 for over 4 years along with ECOCLEAN™ HSDI. As biodiesel content is expected to rise in the coming years, the risk of microbial growth to train operations will increase. Call Fuelcare today to find out how we can help.