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Highly effective broad-spectrum biocide against bacteria, fungi, and algae in water-based industrial systems.
Stable across a wide pH range (pH 4–10), maintaining efficacy in diverse formulation environments.
Low odor and non-volatile, enhancing workplace safety and reducing operator exposure concerns.
Compatible with common surfactants, thickeners, and co-biocides, enabling flexible integration into complex formulations.
Non-oxidizing mode of action, minimizing corrosion risk to metal components and process equipment.
Preservation of water-based paints and coatings during manufacturing and storage.
Microbial control in architectural and industrial latex emulsions.
Protection of adhesives, sealants, and caulking compounds against spoilage.
Stabilization of pigment dispersions and aqueous polymer systems.
In-process preservation for water-based inks and textile printing pastes.
| Chemical Type | Isothiazolinone-based biocide blend |
| Product Form | Liquid concentrate |
| Appearance | Clear to slightly hazy, pale yellow liquid |
| Primary Applications | Pigment dispersions, latex emulsions, water-based coatings & adhesives |
| Key Features | Broad-spectrum activity, pH stability, low volatility, formulation compatibility |
| Benefits | Extended shelf life, reduced microbial spoilage, improved product consistency |
| Storage Conditions | Store in original container at 5–30°C; protect from freezing and direct sunlight |
| Shelf Life | 24 months from date of manufacture when stored properly |
Q1: What is Troy MERGAL KM90 Biocide primarily used for?
A: Troy MERGAL KM90 Biocide is a broad-spectrum preservative designed to control bacteria, yeasts, and molds in water-based industrial formulations, particularly in metalworking fluids, coolants, and other high-water-content systems where microbial degradation poses a risk to product stability and performance.
Q2: Is MERGAL KM90 compatible with common metalworking fluid additives?
A: Yes, MERGAL KM90 exhibits good compatibility with typical metalworking fluid components including emulsifiers, corrosion inhibitors, lubricity agents, and defoamers. Compatibility should always be verified under actual formulation conditions, especially when high concentrations of amines or strong oxidizers are present.
Q3: How should MERGAL KM90 be dosed in a formulation?
A: Dosage depends on formulation requirements, microbial challenge level, and system pH and temperature. It is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—and is often added during the final stage of manufacturing to ensure uniform distribution and optimal efficacy.
Q4: Does MERGAL KM90 require pH adjustment for optimal performance?
A: MERGAL KM90 performs effectively across a broad pH range, typically between 6.0 and 9.5. While it remains active outside this range, maximum stability and antimicrobial activity are generally observed within this interval. Significant deviations may affect shelf life or efficacy and warrant evaluation.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
