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

Schulke Parmetol DF35N Preservative

Schülke Parmetol DF35N is a broad-spectrum liquid preservative from the Parmetol series, designed for water-based industrial formulations. It effectively controls bacteria, yeasts, and molds without formaldehyde or isothiazolinones. Ideal for paints, adhesives, and metalworking fluids, it offers excellent thermal and pH stability, low odor, and easy handling—ensuring long-term product integrity and regulatory compliance.
  • schulke parmetol df35n preservative_b1940f38
  • schulke parmetol df35n preservative_b1940f38

Features Of Schulke Parmetol DF35N Preservative

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

  2. pH-stable performance across a wide range of formulations (pH 3–10).

  3. Compatible with common surfactants, thickeners, and chelating agents.

  4. Low odor and non-volatile, supporting sensory-friendly end products.

  5. EU Biocidal Products Regulation (BPR)-compliant for authorized use in industrial applications.

Typical Applications Of Schulke Parmetol DF35N Preservative

  1. Water-based metalworking fluids and cutting oils.

  2. Industrial cleaning formulations including alkaline and neutral detergents.

  3. Paints, coatings, and architectural emulsions.

  4. Adhesives, sealants, and construction chemical additives.

  5. Process water systems in manufacturing and cooling circuits.

Specifications Of Schulke Parmetol DF35N Preservative

Chemical TypeIsothiazolinone-based preservative blend
Product FormLiquid concentrate
AppearanceClear to slightly opalescent, pale yellow liquid
OdorCharacteristic mild sulfurous odor
Density (20 °C)Approx. 1.12–1.16 g/cm³
SolubilityMiscible with water and polar organic solvents
Storage Stability≥24 months at 5–25 °C in original sealed container
Primary ApplicationsIndustrial preservation of aqueous systems


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