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Broad-spectrum efficacy against key fungal pathogens including Aspergillus, Penicillium, and Cladosporium.
Low volatility and excellent stability in water-based formulations across a wide pH range (pH 4–10).
Non-oxidizing chemistry compatible with common surfactants, thickeners, and preservative systems.
Designed for low-dose performance—effective at concentrations as low as 0.05–0.2% w/w in final products.
Meets stringent global regulatory requirements, including EPA registration and EU Biocidal Products Regulation (BPR) compliance.
Latex paints and architectural coatings
Emulsion polymer systems and acrylic dispersions
Adhesives and sealants (water-based)
Construction chemicals including grouts, mortars, and tile adhesives
Industrial maintenance coatings and protective finishes
| Chemical Type | Isothiazolinone-based biocide (mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one) |
| Product Form | Liquid concentrate |
| Appearance | Clear, pale yellow to amber liquid |
| pH (1% aqueous solution) | 2.5–4.5 |
| Density (20°C) | 1.12–1.18 g/cm³ |
| Solubility | Miscible with water and common polar organic solvents |
| Primary Applications | Preservation of water-based industrial formulations |
| Key Features | Fast-acting, residual protection, low odor, non-staining |
Q1: What is the primary mode of action of Dow ROCIMA 623 Fungicide?
A: Dow ROCIMA 623 Fungicide functions as a broad-spectrum fungistatic agent, primarily inhibiting fungal growth through interference with essential metabolic pathways. Its efficacy is optimized in water-based industrial systems where sustained microbial control is required.
Q2: In which types of industrial formulations is ROCIMA 623 typically used?
A: It is commonly incorporated into water-based coatings, adhesives, construction chemicals, and metalworking fluids—particularly where long-term storage stability and resistance to spoilage by molds and yeasts are critical performance requirements.
Q3: How should ROCIMA 623 be added to a formulation for optimal performance?
A: ROCIMA 623 is generally added during the final stage of formulation, after pH adjustment and cooling, to preserve its activity. It is compatible with most common formulation ingredients but should be evaluated for stability and compatibility in each specific system prior to full-scale use.
Q4: Is ROCIMA 623 suitable for use in applications requiring regulatory compliance for indirect food contact?
A: ROCIMA 623 is not intended for direct food contact applications. For indirect food contact uses, formulators must consult applicable regional regulatory frameworks and conduct appropriate risk assessments—Dow provides technical support for such evaluations upon request.
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