Biocides & preservatives

Xytu® BIT 20

Benzisothiazolinone (BIT) Preservative

BIT 20 is a benzisothiazolinone preservative for in-can protection of emulsion paints and polymer emulsions against microbial growth.

Description

BIT 20 is suitable for emulsion paints and synthetic polymer emulsions used in coatings, helping control bacterial, yeast and mold contamination during storage of aqueous formulations. Amines do not affect active-ingredient stability. It is incompatible with certain oxidizing and reducing agents, including peracid salts and sulfites.

Directions for Use

It is effective at system pH 4–12. Recommended dosages, expressed as product concentration in the respective system (w/w), are 0.05%–0.15% for synthetic polymer emulsions and emulsion paints; 0.05%–0.25% for water-based adhesives and tape adhesive compounds; and 0.05%–0.15% for aqueous mineral slurries and pigment dispersions.

Packaging and Storage

Packed in 25 kg drums. Stability is at least one year at normal storage temperatures.

Technical parameters

NameValue
Composition1,2-Benzisothiazolin-3-one in dipropylene glycol/water solution
Content20% w/w
AppearanceYellow to light-brown liquid
Viscosity (25°C)100–400 mPa·s
pH (10% solution, 25°C)12.0–13.2
Boiling pointApproximately 100°C
Flash pointBoils without a flash point
Density (25°C)1.14 g/mL

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