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Proxel® BD Preservative

Proxel® BD Preservative is a broad spectrum industrial preservative for use in aqueous systems, such as paints, synthetic polymer emulsions and thickeners. Its neutral pH helps avoid electrolyte shock.

Brand: Proxel (25 products)

Functions: Anti-Microbial Agent, Preservative

End Uses: Waterborne Coating

Enhanced TDS

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

CASE Ingredients Functions
Technologies
Composition

BIT in aqueous anionic dispersant.

Features & Benefits

Key Attributes
  • Long lasting bactericide:
    Non specific action means organisms are less liekly to develop resistance.
  • Low acute mammalian toxicity.
  • Contains no added formaldehyde.
  • Easy to use:
    Aqueous dispersion.
    Additives compatible with customer products and processes.
    Good flow properties.
    Non-flammable.
  • Broad pH compatibility:
    Effective over pH range 4-12.
  • Heat stability:
    PROXEL™ BD Preservative is temperature stable up to 80oC.

Applications & Uses

Coating Type
Amount to Use

The dose required to protect aqueous systems will depend on several factors.
These include the type of product, its susceptibility to microbiological attack, the extent to which micro-organisms can gain access, the organisms present, the pH of the product, the temperature of storage and the length of time for which protection is required.


In most new cases, trials are necessary to optimize the needs of an individual system.
Typical addition levels for trial purposes are shown in Table 3.


If higher levels are required, we recommend reference to the Safety Data Sheet.

When To Add

The exceptional stability of PROXEL™ BD Preservative to both heat and to pH variations normally permits its addition together with the water at an early stage of manufacture, since the non-volatility of BIT ensures no loss of antimicrobial activity when the product is subsequently heated.
However, the antimicrobial activity of BIT may be affected by the presence of some oxidizing agents, for example, persalts or sulphites.

Table 3. Typical Levels of Addition for Trial Purposes

Application Preservation of % (w/w)
Emulsion Paints 0.02-0.1
Synthetic Polymer Emulsions 0.02-0.1
Miscellaneous Aqueous Systems 0.02-0.1

 

Properties

Typical Physical Properties
ValueUnitsTest Method / Conditions
pH Value (25°C)6.5--
Boiling Point100°C
Active Agent Content33% w/w
Viscosity (at 10/25°C)420/27mPasNon-Newtonian
Specific Gravity (at 20°C)1.15
Flash PointBoils without flashing
Minimum Inhibitory Concentrations (MIC)

Table 1.

Micro-organism PROXEL™ BD Preservative
(ppm)
Bacteria  
Bacillus subtilis 25
Enterobacter cloacae 50
Escherichia coli 25
Proteus vulgaris 75
Pseudomonas aeruginosa 150
Staphylococcus aureus 25
Strephylococcus faecalis 25
Strephylococcus lactis 10
Fungi  
Aspergillus niger 200
Aureobasidium pullulans 200
Penicillium notatum 75
Yeasts  
Saccharomyces cerevisiae (turbidans) 150
Antimicrobial Properties

Manufacturers of aqueous-based products need to prevent the growth of the many different types of micro-organisms that can occur in these systems. Thus, the requirement is for a broad-spectrum preservative.
The effectiveness of PROXEL™ BD Preservative against a wide range of microorganisms is shown in Table 1.

Dispersibility in Aqueous Systems

Easily dispersible in all proportions.

Regulatory & Compliance

Certifications & Compliance
Regulatory Information

The components of PROXEL™ BD Preservative are in compliance with the following inventories:

  • EINECS (Europe)
  • TSCA (USA)
  • AICS (Australia)
  • ENCS (Japan)
  • DSL (Canada)
  • KECL (Korea)
  • PICCS (Philippines)
  • IECSC (China)
Total Quality

Lonza Microbial Control holds a number of ISO 9001 Quality Management registrations covering our product range. The scope of each registration is specific to the location or entity named on the Registration Certificate and our products are supplied to ISO 9001 Standards.

Safety & Health

Risk Assessment and Management

Lonza professionals have a wide expertise in the fields of Safety, Health and the Environment. Lonza Microbial Control is committed to and uses this expertise in understanding the suitability of PROXEL™ BD Preservative for specific applications.

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • China
  • Europe
  • India
  • Japan
  • Latin America
  • Middle East
  • North America
  • Oceania
  • South East Asia
Packaging Information

PROXEL™ BD Preservative is supplied in 25kg and 200kg containers.

Storage & Handling

Storage & Stability

Stable under normal conditions of storage down to -10°C. If frozen, allow to thaw before use. Active agent is heatstable and nonvolatile.