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

Dow ROCIMA 342 Biocide

Dow ROCIMA™ 342 Biocide is a broad-spectrum, isothiazolinone-based preservative from Dow’s ROCIMA™ antimicrobial portfolio. Designed for water-based industrial formulations, it effectively controls bacteria, fungi, and algae. Ideal for paints, coatings, adhesives, and metalworking fluids, it offers low-odor, stable performance with excellent compatibility and regulatory compliance across global markets.
  • dow rocima 342 biocide_d1ffca41
  • dow rocima 342 biocide_d1ffca41

Features Of Dow ROCIMA 342 Biocide

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

  2. Stable across a wide pH range (pH 4–10), maintaining efficacy under varying process conditions.

  3. Low odor profile and favorable toxicological profile for safer handling in industrial environments.

  4. Compatible with common water treatment additives, including corrosion inhibitors and dispersants.

  5. Non-oxidizing mode of action, minimizing material compatibility concerns with metals and elastomers.

Typical Applications Of Dow ROCIMA 342 Biocide

  1. Cooling water systems in HVAC and industrial heat exchange applications.

  2. Process water circuits in paper manufacturing and pulp mill operations.

  3. Recirculating water systems in metalworking fluid sumps and central coolant systems.

  4. Preservation of water-based coatings, adhesives, and construction chemicals during storage.

  5. Control of microbial growth in oilfield produced water and secondary recovery injection systems.

Specifications Of Dow ROCIMA 342 Biocide

Chemical TypeIsothiazolinone-based blend (primarily 2-methyl-4-isothiazolin-3-one and 5-chloro-2-methyl-4-isothiazolin-3-one)
Product FormAqueous solution
AppearanceClear, light yellow to amber liquid
pH (as supplied)2.0 – 4.0
Density (20°C)1.08 – 1.12 g/cm³
Active Ingredient Content1.5% w/w total isothiazolinones
Primary ApplicationsNon-oxidizing biocide for industrial water systems and water-based formulations
Key FeaturesBroad-spectrum activity, pH stability, low volatility, and formulation compatibility


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