Proxel® ULTRA 10

Proxel® ULTRA 10 by Arxada is a solution of 1,2-benzisothiazolin-3-one in water. Used in high performance polymer emulsions, photographic emulsions and clear varnishes and lacquers.

Overview

Proxel® ULTRA 10 is a highly effective in-can preservative from LANXESS (formerly Lonza), engineered to protect water-based formulations from microbial contamination during production, storage, and end-use. This preservative is based on BIT (1,2-Benzisothiazolin-3-one) and is specially designed for low VOC and environmentally friendly formulations. Proxel® ULTRA 10 provides broad-spectrum antimicrobial activity against bacteria, mold, and fungi, ensuring long-term stability without compromising product properties. It is ideal for use in paints, adhesives, polymer emulsions, and construction chemicals that require high-performance microbial protection and compliance with stringent environmental standards.

Benefits

  • Broad-Spectrum Microbial Control: Active against bacteria, fungi, and yeast.

  • BIT-Based High Efficacy: Suitable for high-performance industrial formulations.

  • Low VOC & Eco-Friendly: Designed for low-emission systems and green-certified products.

  • Wide pH Stability: Effective across pH 4–12 for versatile application.

  • Excellent Thermal Stability: Withstands high-temperature processing.

  • Regulatory Compliance: Meets global standards for industrial biocides.

Applications

  • Architectural Paints & Coatings – Delivers in-can preservation for waterborne coatings and emulsions.

  • Adhesives & Sealants – Prevents microbial growth in water-based adhesive formulations.

  • Polymer Emulsions – Maintains stability of synthetic latex and polymer dispersions.

  • Construction Chemicals – Protects admixtures, plasters, and grouts from microbial spoilage.

  • Printing Inks – Ensures long-term storage stability of aqueous ink systems.

  • Pigment Slurries & Specialty Additives – Prevents contamination in pigment dispersions and additives.

Properties Table 

PropertyDetails
Product NameProxel® ULTRA 10
ManufacturerLANXESS (formerly Lonza)
Chemical TypeIsothiazolinone-based in-can preservative
Active Ingredient1,2-Benzisothiazolin-3-one (BIT) ~10%
Physical FormLiquid
AppearanceClear to pale yellow liquid
pH (as supplied)9.0 – 10.5
SolubilityFully soluble in water
Density (at 20 °C)~1.10 g/cm³
Thermal StabilityExcellent under normal processing conditions
Flash Point>100 °C
Shelf Life18 months in unopened original packaging
Recommended Dosage0.05 – 0.3% (depending on formulation and contamination risk)
Storage ConditionsStore in cool, dry, well-ventilated place; avoid freezing
Packaging25 kg / 200 kg HDPE drums

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