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

Defros D26 Preservative

Defros D26 Preservative is a high-performance, broad-spectrum biocide from the Defros D-Series, specifically formulated for industrial water systems. It effectively controls bacteria, fungi, and algae without corrosive side effects. Ideal for cooling towers, process water, and HVAC systems, it offers stable efficacy across pH 6–9 and temperatures up to 60°C. EPA-registered, non-oxidizing, and compatible with common water treatment chemistries.
  • defros d26 preservative_936f437a
  • defros d26 preservative_936f437a

Features Of Defros D26 Preservative

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

  2. pH stable across 3.0–9.0, ensuring compatibility with a wide range of aqueous formulations.

  3. Low volatility and excellent thermal stability up to 120°C during processing.

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

  5. Eco-friendly profile with ready biodegradability per OECD 301B standards.

Typical Applications Of Defros D26 Preservative

  1. Water-based paints and architectural coatings.

  2. Industrial metalworking fluids and cutting oils.

  3. Latex adhesives and sealants.

  4. Car wash concentrates and vehicle care products.

  5. Textile auxiliaries and dye bath stabilizers.

Specifications Of Defros D26 Preservative

Chemical TypeBlend of isothiazolinones and synergistic co-biocide
Product FormAqueous solution
AppearanceClear, pale yellow liquid
Active Content2.6% w/w (as total isothiazolinones)
Density (20°C)1.08–1.12 g/cm³
pH (1% aqueous solution)3.5–5.0
SolubilityCompletely miscible in water and most polar organic solvents
Shelf Life24 months in unopened original container at 5–30°C


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