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

Dow ROCIMA 631 Biocide

Dow ROCIMA 631 Biocide is a broad-spectrum, isothiazolinone-based preservative from Dow’s ROCIMA™ antimicrobial series. Designed for water-based industrial formulations, it delivers robust protection against bacteria, fungi, and algae. Ideal for paints, coatings, adhesives, and metalworking fluids, it offers excellent stability, low odor, and effective performance at low use levels.
  • dow rocima 631 biocide_5e9b7802
  • dow rocima 631 biocide_5e9b7802

Features Of Dow ROCIMA 631 Biocide

  1. Broad-spectrum efficacy against bacteria, fungi, and algae in industrial water systems.

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

  3. Low-foaming formulation suitable for high-shear and recirculating cooling water applications.

  4. Compatible with oxidizing biocides for synergistic control in challenging microbial environments.

  5. Designed for continuous or slug dosing with favorable environmental profile and low aquatic toxicity.

Typical Applications Of Dow ROCIMA 631 Biocide

  1. Cooling water systems in power generation and HVAC installations.

  2. Process water circuits in pulp and paper manufacturing.

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

  4. Industrial closed-loop systems requiring non-oxidizing, non-corrosive biocide protection.

  5. Pre-treatment water for membrane filtration and reverse osmosis feed streams.

Specifications Of Dow ROCIMA 631 Biocide

Chemical TypeHeterocyclic nitrogen compound (isothiazolone-based)
Product FormAqueous solution
AppearanceClear, light yellow liquid
Primary ApplicationsNon-oxidizing biocide for industrial water treatment
Key FeaturesBroad-spectrum antimicrobial activity, pH stability, low foaming
BenefitsExtended system run time, reduced biofilm formation, compatibility with common scale/corrosion inhibitors
Storage StabilityMinimum 24 months at 5–30 °C in original unopened container
Regulatory StatusRegistered under U.S. EPA FIFRA; compliant with EU BPR requirements


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