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Broad-spectrum fungicidal activity against common spoilage microorganisms including bacteria, yeasts, and molds.
Stable across a wide pH range (pH 3–10), ensuring compatibility with diverse water-based industrial formulations.
Low volatility and non-volatile active ingredients, supporting safe handling and reduced odor impact in enclosed facilities.
Compatible with common surfactants, thickeners, and co-biocides—ideal for integration into complex formulation systems.
Effective at low use concentrations (typically 0.05–0.2% w/w), delivering cost-efficient microbial control without compromising product integrity.
Water-based paints and coatings to prevent in-can spoilage and biofilm formation during storage.
Architectural and industrial latex emulsions used in construction and decorative applications.
Adhesives and sealants, especially acrylic and PVA-based systems exposed to humid conditions.
Printing inks, including water-based flexographic and gravure inks requiring long-term microbiological stability.
Construction chemicals such as grouts, tile adhesives, and cementitious waterproofing slurries.
| Chemical Type | Isothiazolinone-based biocide blend |
| Product Form | Liquid concentrate |
| Appearance | Clear, pale yellow to amber liquid |
| pH (1% aqueous solution) | 3.0–5.0 |
| Density (20°C) | 1.12–1.18 g/cm³ |
| Solubility | Completely miscible with water and polar organic solvents |
| Primary Applications | In-can preservative for water-based industrial formulations |
| Storage Stability | ≥24 months at 5–30°C in original sealed container |
Q1: What is the primary mode of action of Troy MERGAL KM90 Fungicide?
A: Troy MERGAL KM90 is a broad-spectrum fungicide based on isothiazolinone chemistry, acting primarily through inhibition of key enzymatic processes essential for microbial cell metabolism and replication. It provides rapid, contact-based control of bacteria, yeasts, and fungi commonly encountered in industrial water systems and water-based formulations.
Q2: In which types of industrial systems is Troy MERGAL KM90 typically applied?
A: It is widely used in recirculating cooling water systems, metalworking fluids, latex emulsions, adhesives, and other water-based industrial process fluids where sustained microbial control is required. Its stability across a broad pH range and compatibility with common system additives make it suitable for demanding operational environments.
Q3: How does Troy MERGAL KM90 compare to other isothiazolinone biocides in terms of stability and performance?
A: Troy MERGAL KM90 offers enhanced oxidative stability compared to some conventional isothiazolinone blends, supporting longer-lasting efficacy in systems exposed to oxidizing agents or elevated temperatures. Its formulation is designed to maintain activity under dynamic process conditions without rapid degradation or loss of residual protection.
Q4: What safety and handling precautions should be observed when using this product?
A: As with all concentrated biocides, appropriate personal protective equipment (PPE) — including chemical-resistant gloves, eye protection, and respiratory protection when handling undiluted material — should be worn. Always consult the Safety Data Sheet (SDS) for detailed hazard information, first-aid measures, and recommended engineering controls prior to use.
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