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

Defros BK Preservative

DefrosBKPreservativeisapremiumbiocidalpreservativefromDefros’sBKPseries,formulatedwithisothiazolinonesandoptimizedforwater-basedcoatings,adhesives,andemulsions.Itprovideseffectivecontrolagainstbacteria,fungi,andalgae,ensuringlong-termsystemstabilityandcompliancewithglobalregulationsincludingEU-BPRandEPA.
  • defros bk preservative_f6cee79e
  • defros bk preservative_f6cee79e

Features Of Defros BK Preservative

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

  2. pH-stable performance across a wide range of 3.0–9.0, ensuring compatibility in diverse formulations.

  3. Low toxicity profile with favorable environmental and handling safety characteristics.

  4. Excellent thermal and hydrolytic stability during processing and long-term storage.

  5. Non-volatile and non-oxidizing, minimizing impact on product odor, color, and oxidation-sensitive ingredients.

Typical Applications Of Defros BK Preservative

  1. Water-based industrial coatings and paints.

  2. Latex adhesives and construction sealants.

  3. Printing inks and pigment dispersions.

  4. Emulsion polymer systems and synthetic rubber latexes.

  5. Non-ionic surfactant-containing cleaning formulations.

Specifications Of Defros BK Preservative

Chemical TypeBlend of isothiazolone derivatives and synergistic co-biocide
Product FormClear to slightly hazy aqueous solution
AppearanceColorless to pale yellow liquid
OdorFaint characteristic odor
pH (1% aqueous solution)3.5–5.5
Density (20°C)1.02–1.06 g/cm³
SolubilityCompletely miscible with water and most common polar organic solvents
Primary ApplicationsPreservation of water-based industrial fluids and polymer emulsions


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