Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow KATHON WT Fungicide

DowKATHONWTFungicideisapremiumbiocidalsolutionfromDow’sKATHONbranddesignedforwater-basedindustrialfluids.Itdeliverseffectivebroad-spectrumcontrolofbacteria,fungi,andyeastwithlowdosage,stabilityacrosspHrange,andcompatibilitywithcommonformulationingredients.
  • dow kathon wt fungicide_51066e8d
  • dow kathon wt fungicide_51066e8d

Features Of Dow KATHON WT Fungicide

  1. Highly effective broad-spectrum biocide against bacteria, fungi, and algae in water-based industrial systems.

  2. Stable performance across a wide pH range (pH 4–9) and tolerant to common water treatment chemicals.

  3. Low-dosage efficacy—provides long-term microbial control at concentrations as low as 5–50 ppm active ingredient.

  4. Compatible with common polymers, surfactants, and corrosion inhibitors used in cooling water and process water applications.

  5. Non-oxidizing mode of action minimizes impact on system metallurgy and avoids interference with residual chlorine monitoring.

Typical Applications Of Dow KATHON WT Fungicide

  1. Cooling water systems—including open recirculating towers and closed-loop chilled water circuits.

  2. Process water systems in pulp & paper manufacturing, particularly in white water and coating lines.

  3. Industrial cleaning solutions and metalworking fluid sumps where microbial spoilage compromises fluid life.

  4. Oilfield water injection systems requiring sustained microbiological control to prevent biofilm formation and souring.

  5. Paint and coating formulations as an in-can preservative for waterborne latex and acrylic emulsions.

Specifications Of Dow KATHON WT Fungicide

Chemical TypeIsothiazolinone-based biocide (mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one)
Product FormAqueous solution
AppearanceClear, light yellow liquid
Active Ingredient Content1.5% w/w (total isothiazolinones)
pH (as supplied)2.0–4.0
Density (20°C)1.01–1.03 g/cm³
SolubilityCompletely miscible with water
Primary ApplicationsIndustrial water treatment, paint & coatings, metalworking fluids, pulp & paper process water


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