Proxel® BZ is a versatile in-can preservative from LANXESS (formerly Lonza), designed for the preservation of water-based products such as paints, adhesives, and polymer emulsions. It is based on 1,2-Benzisothiazolin-3-one (BIT) technology and offers broad-spectrum antimicrobial activity, ensuring protection against bacteria, fungi, and yeast. Proxel® BZ is formaldehyde-free, VOC-compliant, and exhibits excellent thermal and pH stability, making it ideal for environmentally conscious formulations and high-performance industrial applications.
BIT-Based Technology: Proven broad-spectrum antimicrobial action.
Formaldehyde-Free: Suitable for low-VOC and eco-friendly systems.
Wide pH Stability: Effective across a range of 4–12.
Thermal Stability: Withstands high-temperature processing and storage.
Long-Term Preservation: Extends shelf life of sensitive formulations.
Regulatory Compliance: Meets global standards for industrial biocides.
Waterborne Paints & Coatings – Protects decorative and industrial paints during storage.
Adhesives & Sealants – Prevents microbial contamination in aqueous adhesive systems.
Polymer Emulsions – Maintains stability in latex and synthetic dispersions.
Construction Chemicals – Provides in-can protection for admixtures, plasters, and mortars.
Printing Inks – Ensures microbial safety in water-based ink formulations.
Pigment Slurries & Additives – Prevents contamination in pigment dispersions and auxiliary products.
| Property | Details |
|---|---|
| Product Name | Proxel® BZ |
| Manufacturer | LANXESS (formerly Lonza) |
| Chemical Type | Isothiazolinone-based in-can preservative |
| Active Ingredient | 1,2-Benzisothiazolin-3-one (BIT) ~10% |
| Physical Form | Liquid concentrate |
| Appearance | Clear to pale yellow |
| pH (as supplied) | 9.0 – 10.5 |
| Solubility | Fully soluble in water |
| Density (at 20 °C) | ~1.10 g/cm³ |
| Thermal Stability | Excellent under standard manufacturing conditions |
| Flash Point | >100 °C |
| Shelf Life | 18 months in unopened original packaging |
| Recommended Dosage | 0.05 – 0.3% (depending on formulation and contamination risk) |
| Storage Conditions | Store in a cool, dry, well-ventilated area; avoid freezing |
| Packaging | 25 kg / 200 kg HDPE drums |
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