Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Defros CPW Preservative

Defros CPW Preservative is a high-performance biocide from the Defros CPW series designed for industrial water treatment. It effectively controls bacteria fungi and algae in cooling towers and process water systems. This broad-spectrum preservative offers long-term stability low toxicity and compatibility with common water treatment chemicals. Formulated for continuous or slug dosing it ensures reliable microbial control across diverse operating conditions.
  • defros cpw preservative_104b840a
  • defros cpw preservative_104b840a

Features Of Defros CPW Preservative

  1. Broad-spectrum efficacy against bacteria, fungi, and yeasts in water-based systems.

  2. Excellent thermal and pH stability across pH 4–10, ensuring consistent performance in diverse formulations.

  3. Low volatility and non-volatile residue, supporting long-term preservation without odor or evaporation concerns.

  4. Compatible with anionic, nonionic, and amphoteric surfactants, as well as common thickeners and emulsifiers.

  5. REACH-compliant and registered under the EU Biocidal Products Regulation (BPR) for industrial preservative use.

Typical Applications Of Defros CPW Preservative

  1. Water-based architectural coatings and interior/exterior paints.

  2. Industrial maintenance coatings, including primers and anti-corrosive finishes.

  3. Construction chemicals such as cementitious grouts, tile adhesives, and waterproofing slurries.

  4. Textile auxiliaries and pigment dispersions used in dyeing and finishing processes.

  5. Agrochemical concentrates and suspension concentrates (SCs) requiring microbial stabilization.

Specifications Of Defros CPW Preservative

Chemical TypeBlend of isothiazolinones and synergistic co-biocide
Product FormClear to slightly hazy aqueous liquid
AppearanceColorless to pale yellow liquid
pH (1% aqueous solution)3.5 – 5.5
Density (20°C)1.08 – 1.12 g/cm³
SolubilityCompletely miscible with water and common polar organic solvents
Primary ApplicationsPreservation of water-based industrial formulations
Storage Stability≥24 months in original unopened container at 5–25°C


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