What is Oamiguard BS20 High-temperature Preservative?

Oamiguard BS20 is a broad-spectrum preservative used to protect water-based industrial products from bacteria, yeasts and molds, and is widely applied in water-based industrial product systems such as synthetic polymer emulsions, latex paints, water-based adhesives, printing inks and metalworking fluids.

Physical & Chemical Parameters

Composition	1,2-Benzisothiazolin-3-one (BIT), low-molecular-weight alcohol solvent
Appearance	Yellow to light brown liquid
Viscosity (25 ℃)	100 - 400 mPa·s
pH (10% solution, 25 ℃)	12.0 - 13.2
Boiling point	approx. 100 ℃
Flash point	Boils without flash point
Density (25 ℃)	1.14 g/ml
Storage stability	Stable at room temperature (≥10 ℃); if frozen, thaw and stir well before use
Compatibility	Effective in the pH range 4-12; stability unaffected by amines

Minimum Inhibitory Concentration (MIC)

Bacteria	MIC* (ppm)
Alcaligenes faecalis	5
Escherichia coli	30
Pseudomonas aeruginosa	40
Staphylococcus aureus	20
Mold	MIC* (ppm)
Alternaria alternata	225
Aspergillus niger	300
Cladosporium cladosporioides	30
Yeast	MIC* (ppm)
Candida albicans	55
Saccharomyces cerevisiae	115

Recommended Dosage

Application	Concentration % (W/W)
Synthetic polymer emulsions	0.05 - 0.15
Latex paints	0.05 - 0.15
Water-based adhesives	0.05 - 0.25
Household products (laundry detergents, dishwashing liquids, floor and wall cleaners, etc.)	0.05 - 0.15
Tape joint compounds	0.05 - 0.25
Printing inks	0.05 - 0.15
Paper coating raw materials	0.05 - 0.15
Metalworking fluids (working fluids)	0.05 - 0.18
Agricultural pesticide products	0.05 - 0.25
Water-based mineral slurries and pigment dispersions	0.05 - 0.15