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

Schulke Parmetol A28S Preservative

Schulke Parmetol A28S Preservative is a broad-spectrum, formaldehyde-free biocide designed for water-based industrial formulations. It effectively controls bacteria, yeasts, and molds while offering excellent thermal and pH stability. Ideal for paints, adhesives, and metalworking fluids, it ensures long-term preservation without compromising product performance or safety.
  • schulke parmetol a28s preservative_aed56048
  • schulke parmetol a28s preservative_aed56048

Features Of Schulke Parmetol A28S Preservative

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

  2. pH-stable performance across a wide range of formulations (pH 3–9).

  3. Low odor and excellent compatibility with common cosmetic and industrial ingredients.

  4. Non-volatile and thermally stable for use in hot-process manufacturing.

  5. EU Biocidal Products Regulation (BPR) compliant for specified product-type applications.

Typical Applications Of Schulke Parmetol A28S Preservative

  1. Water-based personal care products including shampoos, conditioners, and body washes.

  2. Household cleaning formulations such as all-purpose cleaners and liquid detergents.

  3. Industrial maintenance fluids including metalworking coolants and hydraulic fluids.

  4. Water-based paints, coatings, and architectural finishes.

  5. Adhesives, sealants, and construction chemical systems.

Specifications Of Schulke Parmetol A28S Preservative

Chemical TypeIsothiazolinone-based blend (active: 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one)
Product FormAqueous solution
AppearanceClear to slightly hazy, pale yellow liquid
Active Content2.8 wt% total isothiazolinones
Density (20 °C)Approx. 1.05–1.08 g/cm³
pH (1% aqueous solution)2.5–4.5
SolubilityCompletely miscible with water
Storage Stability≥24 months at 5–25 °C in original sealed container


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