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Highly effective broad-spectrum biocide against bacteria, fungi, and algae in industrial water systems.
Stable across a wide pH range (pH 4–10), maintaining efficacy under varying process conditions.
Low foaming formulation, suitable for high-shear and recirculating cooling water applications.
Compatible with common corrosion inhibitors and scale control agents used in water treatment programs.
Non-oxidizing chemistry, minimizing oxidative degradation of system components and polymers.
Cooling water systems in power generation and HVAC facilities.
Process water circuits in paper manufacturing and pulp mills.
Recirculating water loops in petrochemical and refinery operations.
Make-up water treatment for closed-loop industrial cooling towers.
Preservation of aqueous metalworking fluids and emulsions.
| Chemical Type | Non-oxidizing isothiazolinone-based biocide |
| Product Form | Liquid concentrate |
| Appearance | Clear, pale yellow to amber liquid |
| Primary Applications | Industrial water treatment, metalworking fluid preservation |
| Key Features | Broad-spectrum microbiocidal activity, pH stability, low foam |
| Benefits | Extended system run time, reduced biofilm formation, compatibility with common water treatment additives |
| Storage Temperature | 5–30 °C (41–86 °F) |
| Shelf Life | 24 months from date of manufacture when stored properly |
Q1: What is the primary mode of action for Dow 893MW Biocide?
A: Dow 893MW Biocide functions primarily as a broad-spectrum antimicrobial agent through disruption of microbial cell membranes and interference with essential metabolic processes, leading to rapid biocidal activity against bacteria, fungi, and algae.
Q2: In which types of industrial formulations is Dow 893MW Biocide commonly used?
A: It is widely incorporated into water-based industrial coatings, adhesives, sealants, construction chemicals, and metalworking fluids—particularly where long-term preservation against microbial spoilage during storage and in-use conditions is required.
Q3: Is Dow 893MW Biocide compatible with common formulation ingredients such as surfactants and thickeners?
A: Yes, Dow 893MW Biocide demonstrates good compatibility with many anionic, nonionic, and amphoteric surfactants, as well as common rheology modifiers including associative and non-associative thickeners—though compatibility testing under actual formulation conditions is recommended.
Q4: How should Dow 893MW Biocide be added to a formulation?
A: It is typically added during the cool-down phase of manufacturing, after high-temperature processing steps, to preserve efficacy. Addition to the aqueous phase or pre-dilution in water is often preferred for uniform dispersion.
Q5: What is the typical dosage range for effective preservation using Dow 893MW Biocide?
A: Effective dosage generally ranges from 0.1% to 2% by weight of the final formulation, depending on microbial challenge level, pH, temperature, and presence of organic load—final concentration should be determined through challenge testing per relevant industry guidelines.
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