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Highly effective broad-spectrum biocide against bacteria, fungi, and algae.
Excellent stability in water-based systems across a wide pH range (pH 4–10).
Low volatility and minimal odor, enhancing workplace safety and handling convenience.
Compatible with common industrial additives, including surfactants, thickeners, and corrosion inhibitors.
Non-oxidizing chemistry, reducing risk of material degradation in metal and polymer components.
Preservation of water-based paints and coatings during storage and application.
Protection of architectural and industrial latex emulsions against microbial spoilage.
Stabilization of adhesives and sealants formulations in manufacturing and distribution.
Microbial control in pigment dispersions and ink systems for packaging and graphic arts.
Prevention of biofilm formation in recirculating cooling water systems (as part of a comprehensive treatment program).
| Chemical Type | Isothiazolinone-based biocide blend |
| Product Form | Liquid concentrate |
| Appearance | Pale yellow to amber clear liquid |
| Density (at 20 °C) | Approx. 1.08–1.12 g/cm³ |
| Solubility | Miscible with water and many polar organic solvents |
| pH (1% aqueous solution) | 3.5–5.0 |
| Primary Applications | Preservative for water-based industrial formulations |
| Key Features | Broad-spectrum efficacy, low toxicity profile, regulatory compliance support (e.g., EU BPR, US EPA) |
Q1: What is BASF GA 50 Biocide primarily used for?
A: BASF GA 50 Biocide is a broad-spectrum preservative designed to control bacteria, yeasts, and molds in water-based industrial formulations, including coatings, adhesives, construction chemicals, and metalworking fluids.
Q2: Is GA 50 compatible with common formulation ingredients such as surfactants, thickeners, and pigments?
A: Yes, GA 50 exhibits good compatibility with a wide range of formulation components, including nonionic and anionic surfactants, associative and non-associative thickeners, and most inorganic pigments—though compatibility testing under actual use conditions is recommended prior to full-scale implementation.
Q3: How should GA 50 be dosed in a typical formulation?
A: Dosage depends on the specific formulation, microbial challenge, and regulatory requirements, but GA 50 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—added during the cool-down phase or post-emulsification to ensure optimal stability and efficacy.
Q4: Does GA 50 require pH adjustment for optimal performance?
A: GA 50 performs effectively across a broad pH range (approximately pH 4–10), making it suitable for both acidic and alkaline systems without mandatory pH adjustment—however, extreme pH values may affect long-term stability and should be evaluated case by case.
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