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Broad-spectrum biocidal activity against bacteria, fungi, and algae.
Stable in high-hardness water and tolerant to common industrial water treatment additives.
Low foaming formulation suitable for high-shear and recirculating systems.
Compatible with anionic, nonionic, and cationic surfactants commonly used in process fluids.
Effective at low dosing rates (typically 50–200 ppm), supporting cost-efficient microbial control.
Industrial cooling water systems including open recirculating towers and closed loops.
Process water circuits in paper manufacturing and pulp mills.
Emulsion-based metalworking fluids and cutting oils.
Paint and coating formulations during production and storage.
Adhesives, sealants, and latex-based construction chemicals.
| Chemical Type | Isothiazolinone-based blend (active ingredients: 2-methylisothiazolin-3-one and 5-chloro-2-methylisothiazolin-3-one) |
| Product Form | Aqueous solution |
| Appearance | Clear, light yellow liquid |
| pH (as supplied) | 2.5–4.0 |
| Density (20 °C) | 1.08–1.12 g/cm³ |
| Active Content | 1.5% w/w total isothiazolinones |
| Freeze Point | Approx. –5 °C |
| Storage Stability | ≥12 months at 5–30 °C in original unopened container |
Q1: What is Dow ROCIMA GT Biocide primarily used for?
A: Dow ROCIMA GT Biocide is a broad-spectrum liquid biocide formulated for microbial control in water-based industrial systems, especially in metalworking fluids, coolants, and process waters where long-term bacterial and fungal stability is required.
Q2: Is Dow ROCIMA GT Biocide compatible with common metalworking fluid additives?
A: Yes, it demonstrates good compatibility with typical anionic, nonionic, and cationic surfactants, corrosion inhibitors, and emulsifiers found in semi-synthetic and soluble oil formulations—though compatibility testing under actual use conditions is recommended prior to full-scale implementation.
Q3: How should Dow ROCIMA GT Biocide be dosed in metalworking fluids?
A: It is typically used at low concentrations, generally ranging from 0.1% to 2% by weight of the finished formulation, depending on system severity, water quality, and microbial challenge; initial treat rates and maintenance dosing should be determined through laboratory challenge testing and field monitoring.
Q4: Does Dow ROCIMA GT Biocide require pH adjustment for optimal performance?
A: Performance is generally robust across a pH range of 7.5–9.5, which aligns well with most operational metalworking fluid systems; significant deviation outside this range may affect stability or efficacy, so routine pH monitoring and control are advised.
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