Mergal® K12N

Mergal® K12N by Troy Corporation (Arxada) is a zero VOC, fast acting, water-soluble liquid microbiocide. It acts as an in-can preservative for broad spectrum control of bacteria, yeast and mold. It is based on isothiazolinone and suitable for systems with a pH of 3-9. Mergal® K12N is used in water-borne inks, paints and coatings containing some residual redox agents. Its recommended dosage level is 0.05-0.2 %wt.

Overview

Mergal® K12N is a formaldehyde-free, broad-spectrum in-can preservative from Troy Corporation (now part of Arxada), designed to protect water-based formulations against microbial contamination. It combines methylisothiazolinone (MIT) and benzisothiazolinone (BIT) for synergistic antimicrobial action, ensuring reliable preservation even in high-risk, high-nutrient formulations. Mergal® K12N is effective at low use levels, compatible with various chemistries, and stable across a wide pH and temperature range. It is suitable for environmentally conscious products and complies with stringent global regulatory standards.\

Benefits

  • Formaldehyde-Free Composition – Safer for both formulators and end-users

  • Broad-Spectrum Antimicrobial Action – Combines MIT and BIT for extended protection

  • Effective at Low Dosage – Cost-efficient without compromising efficacy

  • High Chemical Compatibility – Works well in diverse formulations without destabilization

  • pH and Temperature Stability – Active across a pH range of 4–10 and under demanding conditions

  • Regulatory Compliant – Meets current global standards for biocidal product usage

Applications

  • Water-Based Paints & Coatings – Preserves emulsion paints, plasters, and industrial coatings

  • Adhesives & Glues – Protects aqueous adhesives including PVA, EVA, and acrylics

  • Polymer Emulsions – Ensures microbial stability in acrylics, vinyl acetate, and styrene emulsions

  • Construction Chemicals – Effective in fillers, cement additives, and grouts

  • Printing Inks – Maintains microbial control in aqueous ink and overprint varnishes

  • Home & Industrial Cleaners – Suitable for surfactant-heavy detergent and cleaning solutions

Applications

  • Water-Based Paints & Coatings – Preserves emulsion paints, plasters, and industrial coatings

  • Adhesives & Glues – Protects aqueous adhesives including PVA, EVA, and acrylics

  • Polymer Emulsions – Ensures microbial stability in acrylics, vinyl acetate, and styrene emulsions

  • Construction Chemicals – Effective in fillers, cement additives, and grouts

  • Printing Inks – Maintains microbial control in aqueous ink and overprint varnishes

  • Home & Industrial Cleaners – Suitable for surfactant-heavy detergent and cleaning solutions

 

Properties Table

PropertyDetails
Product NameMergal® K12N
ManufacturerTroy Corporation / Arxada
Chemical TypeIn-can preservative (MIT + BIT blend)
Active IngredientsMethylisothiazolinone (MIT), Benzisothiazolinone (BIT)
Physical FormLiquid
AppearanceClear to slightly yellow liquid
OdorLow to moderate
pH (as supplied)~6.0 – 7.5
SolubilityFully soluble in water
Density @ 20 °C~1.03 g/cm³
Flash Point>100 °C
Recommended Use Level0.05% – 0.2% depending on formulation type
pH Stability Range4 – 10
Shelf Life12 months (unopened, original packaging)
Packaging Options25 kg pails, 200 kg drums, 1000 kg IBCs

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