Mergal® 680

Mergal® 680 by Troy Corporation (Arxada) is an effective liquid preservative used to prevent deterioration and degradation caused by bacteria, yeast, mold, and fungi in aqueous systems. It is used as an in-can preservative in paints, stucco/masonry coatings, EIFS coatings and other coating products where water is a component. Mergal® 680 is especially effective in controlling pseudomonas and bacillus sp.

Overview

Mergal® 680 is a highly effective, formaldehyde-free in-can preservative developed for water-based formulations that are susceptible to microbial contamination during storage and use. With 1,2-Benzisothiazolin-3-one (BIT) as its primary active ingredient, it delivers broad-spectrum protection against bacteria, mold, and yeast. Engineered by Arxada (formerly Troy Corporation), Mergal® 680 is designed for use in paints, adhesives, emulsions, inks, and construction chemicals. It is compatible with a wide pH range and offers outstanding stability, making it a versatile option for both industrial and decorative applications.

Benefits

  • Formaldehyde-Free Solution – Suitable for eco-conscious and low-toxicity product lines

  • Wide pH Compatibility – Stable and effective across a pH range of 4 to 12

  • Broad-Spectrum Antimicrobial Action – Effective against bacteria, yeast, and mold

  • Low VOC & Odor Profile – Enables compliance with indoor air quality regulations

  • High Compatibility – Easily incorporated into complex aqueous formulations

  • Low Use Rate Efficiency – Delivers effective preservation with minimal addition

Applications

  • Paints & Coatings – Inhibits microbial growth in latex paints and waterborne architectural coatings

  • Adhesives – Preserves water-based PVA, EVA, and acrylic adhesives against spoilage

  • Polymer Emulsions – Suitable for styrene-acrylic, acrylic, and vinyl acetate-based dispersions

  • Printing Inks – Stabilizes water-based printing inks used in packaging and commercial printing

  • Sealants & Construction Materials – Used in cement additives, plasters, and joint sealants

  • Pigment Pastes & Slurries – Prevents microbial degradation in water-rich pigment systems

Properties Table

PropertyDetails
Product NameMergal® 680
ManufacturerArxada (formerly Troy Corporation)
Chemical TypeIn-can preservative
Active Ingredient1,2-Benzisothiazolin-3-one (BIT) – approx. 20%
Physical FormLiquid
AppearanceClear to light amber
OdorLow to negligible
pH (as supplied)9.0 – 10.5
SolubilityFully soluble in water
Density @ 20 °C~1.03 – 1.05 g/cm³
Flash Point>100 °C
Recommended Use Level0.05% – 0.15%, depending on application and susceptibility
pH Stability Range4 – 12
Shelf Life18 months (in original unopened container)
Packaging Options25 kg drums, 200 kg drums, 1000 kg IBCs

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