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Broad-spectrum fungicidal activity against key spoilage organisms including yeasts, molds, and bacteria.
pH-stable performance across a wide range (pH 3–10), ensuring efficacy in diverse formulation environments.
Low odor and non-volatile profile, supporting use in sensitive consumer and industrial applications.
Compatible with common surfactants, polymers, and preservative systems without compromising stability.
Regulatory support for global markets, including compliance with EU Biocidal Products Regulation (BPR) and US EPA requirements.
Water-based paints and coatings to prevent microbial degradation during storage and in-service conditions.
Architectural and industrial adhesives and sealants where long-term biological stability is critical.
Construction materials such as grouts, mortars, and cementitious slurries exposed to humid environments.
Non-woven textiles and building insulation products requiring protection against fungal growth.
Automotive interior components and under-hood materials susceptible to microbiological spoilage.
| Chemical Type | Isothiazolinone-based biocide blend |
| Product Form | Aqueous solution |
| Appearance | Clear, light amber liquid |
| Primary Applications | Preservation of water-based industrial formulations |
| Key Features | Broad-spectrum, pH-stable, low-odor, non-volatile |
| Recommended Use Level | 0.05–0.2% w/w (as supplied) |
| Storage Conditions | Store at 5–30°C; protect from freezing and direct sunlight |
| Shelf Life | 24 months from date of manufacture when stored properly |
Q1: What is the primary mode of action of Dow ROCIMA 640 Fungicide?
A: Dow ROCIMA 640 Fungicide functions as a broad-spectrum fungistatic agent, primarily inhibiting fungal growth through interference with essential metabolic pathways in susceptible microorganisms. Its activity is optimized in aqueous systems where it remains stable and bioavailable over extended periods.
Q2: In which types of industrial formulations is Dow ROCIMA 640 typically used?
A: It is commonly incorporated into water-based industrial products such as metalworking fluids, latex paints, adhesives, coatings, and construction chemicals—particularly where long-term protection against mold, yeast, and bacteria is required during storage and use.
Q3: How does pH affect the performance and stability of Dow ROCIMA 640?
A: Dow ROCIMA 640 demonstrates optimal stability and antimicrobial efficacy in mildly acidic to neutral pH ranges (approximately pH 5.0–8.5). Performance may diminish significantly under strongly alkaline conditions or prolonged exposure to highly acidic environments.
Q4: Is Dow ROCIMA 640 compatible with common biocides used in co-preservative systems?
A: Yes, it is generally compatible with many oxidative and non-oxidative biocides—including isothiazolinones and formaldehyde releasers—enabling synergistic preservation strategies. Compatibility testing under actual formulation conditions is recommended prior to full-scale implementation.
Q5: What are key handling and safety considerations for Dow ROCIMA 640?
A: As with all industrial biocides, appropriate personal protective equipment (PPE) such as gloves and eye protection should be worn during handling. The product should be stored in its original container in a cool, dry, well-ventilated area away from strong oxidizers. Full safety guidance is provided in the Safety Data Sheet (SDS).
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