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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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Preventol® BO

Technical Datasheet | Supplied by Lanxess
Preventol® BO by Lanxess is formaldehyde-free, solvent-, VOC-free, in-can preservative based on benzisothiazolinone and octylisothiazolinone for the preservation of aqueous coatings. It is developed to enable H317 free preservation as an alternative to MIT based preservatives. The optimized ratio allows using this combination for products in accordance to Ecolabel for paints and varnishes. Preventol® BO offers broad spectrum of activity against bacteria, mold fungi and yeasts. It shows alkaline stability up to pH 10 and thermal stability up to 60°C. It contains no organic solvents and does not add to the VOC content of the products it protects. It is suitable for low emission interior paints. The suggested addition level for emulsion paints is 0.05-0.20% by weight. The shelf life of this product is one year.
Preventol® BO
Technical Datasheet | Supplied by Lanxess
Product Type
  • Biocides > Biocides, In-can Preservatives > BIT
  • Biocides > Biocides, In-can Preservatives > OIT
Chemical Composition
Aqueous dispersion of 1,2-benzisothiazolin-3-one (BIT) and 2-octyl-2H-isothiazolin-3-one (OIT)
Physical Form
Product Status
Applications/ Recommended for
  • Coatings > Solvent-Free/ High-Solids
  • Coatings > Waterborne
  • Coatings Markets > Architectural / Decorative > Interior wall coatings
Labels/Agency Rating
Accordance to Ecolabel

Preventol® BO Properties


Value & Unit
Test Condition
Test Method
1.0 - 1.1 g/cm3
(At 20°C)
300 - 500 mPa-s
(At 20°C. 30/s)
3 - 6
(At 10%)
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