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

Defros 385 Preservative

Defros 385 Preservative is a broad-spectrum, formaldehyde-free biocide from the Defros Preservative Series, specifically formulated for water-based coatings and adhesives. It effectively controls bacteria, fungi, and algae with low toxicity and excellent pH stability. Compatible with common thickeners and surfactants, it ensures long-term preservation without compromising product performance or regulatory compliance.
  • defros 385 preservative_0f435f93
  • defros 385 preservative_0f435f93

Features Of Defros 385 Preservative

  1. Broad-spectrum antimicrobial activity against bacteria, yeasts, and molds.

  2. pH stable across a wide range (3.0–9.0), ensuring compatibility with diverse formulations.

  3. Low volatility and excellent thermal stability for processing at elevated temperatures.

  4. Non-oxidizing and non-corrosive to common industrial metals and packaging materials.

  5. Easily incorporated into aqueous systems without requiring solubilizers or co-solvents.

Typical Applications Of Defros 385 Preservative

  1. Water-based metalworking fluids and cutting oils.

  2. Industrial cleaning agents and detergent concentrates.

  3. Latex emulsions and polymer dispersions in coatings and adhesives.

  4. Process water systems in papermaking and textile finishing.

  5. Emulsion polymerization reactors and post-polymerization stabilization.

Specifications Of Defros 385 Preservative

Chemical TypeOrganic biocide blend (isothiazolinone-based)
Product FormLiquid concentrate
AppearanceClear, pale yellow to amber liquid
Density (20°C)1.12–1.16 g/cm³
SolubilityMiscible with water and common polar organic solvents
pH (1% aqueous solution)2.5–4.0
Shelf Life (unopened, 15–25°C)24 months
Primary ApplicationsIndustrial preservation of water-based process fluids and intermediates


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