Overview

1,2-Benzisothiazolin-3-one (BIT) is a widely used, formaldehyde-free in-can preservative known for its long-lasting, broad-spectrum protection against microbial contamination. As a single-active biocide, BIT is particularly valued for its high chemical stability and broad pH tolerance, making it suitable for challenging water-based formulations. It is commonly used in paints, polymer emulsions, adhesives, construction chemicals, and household products. BIT is an excellent choice for formulations requiring low odor, non-volatile preservatives that meet regulatory and eco-labeling standards.

Benefits

• Broad-Spectrum Protection – Active against bacteria, fungi, and yeast

• Formaldehyde-Free – Supports environmentally friendly and safe formulations

• Excellent Thermal & Chemical Stability – Suitable for harsh processing and storage

• Low Volatility – Ideal for low-VOC and odor-sensitive applications

• Compatible with Many Ingredients – Works well with emulsifiers, surfactants, and thickeners

• Eco-Label Friendly – Accepted in many sustainable and green-certified formulations

Applications

• Paints & Coatings – Prevents microbial degradation in emulsion paints and varnishes

• Adhesives & Glues – Stabilizes PVA, acrylic, and water-based adhesives against spoilage

• Polymer Dispersions – Protects acrylic and styrene-acrylic emulsions during storage

• Construction Materials – Used in grouts, fillers, and concrete admixtures

• Detergents & Cleaners – Maintains microbial stability in surface cleaners and detergents

• Printing Inks & Pigment Pastes – Controls microbial growth in aqueous systems

Properties Table