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

Dow ROCIMA 320 Biocide

Dow ROCIMA 320 Biocide is a broad-spectrum, formaldehyde-releasing preservative from Dow’s ROCIMA™ antimicrobial series. Designed for water-based industrial formulations, it effectively controls bacteria, fungi, and yeasts. Ideal for paints, coatings, adhesives, and metalworking fluids, it offers stable performance across pH 4–10 and resists thermal degradation. EPA-registered and widely used globally for long-term microbial protection.
  • dow rocima 320 biocide_853ea419
  • dow rocima 320 biocide_853ea419

Features Of Dow ROCIMA 320 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 common corrosion inhibitors and scale inhibitors used in closed-loop and open cooling systems.

  5. Non-oxidizing chemistry minimizes impact on system metallurgy and polymer components.

Typical Applications Of Dow ROCIMA 320 Biocide

  1. Industrial cooling water systems (open recirculating and closed-loop).

  2. Process water circuits in paper, pulp, and textile manufacturing.

  3. Make-up water treatment for HVAC chillers and heat exchangers.

  4. Secondary treatment of reclaimed water used in non-potable industrial applications.

  5. Preservation of water-based process fluids and emulsions during storage and transport.

Specifications Of Dow ROCIMA 320 Biocide

Chemical TypeIsothiazolinone-based biocide blend
Product FormClear, amber liquid
AppearanceHomogeneous solution, free of sediment or haze
Primary ApplicationsCooling water, process water, and industrial fluid preservation
Key FeaturesBroad-spectrum, non-oxidizing, low-foaming, pH-stable
Recommended Dosage Range50–200 ppm active ingredient (system-dependent)
Storage Temperature5–35 °C (41–95 °F); avoid freezing and prolonged exposure above 40 °C
Shelf Life24 months from date of manufacture when stored under recommended conditions


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