What is Oamiguard MB5050 High-temperature Long-lasting Preservative?

Oamiguard MB5050 is a solvent-free, zero-VOC, broad-spectrum, high-temperature long-lasting preservative used to preserve industrial water-based products and prevent spoilage by bacteria, yeasts and fungi. It is a combination of two active substances, 1,2-benzisothiazolin-3-one (BIT) and methylisothiazolinone (MIT), with a non-specific mode of action that makes bacterial resistance extremely unlikely.

Physical & Chemical Parameters

Composition	Aqueous solution of 1,2-benzisothiazolin-3-one (BIT) and methylisothiazolinone (MIT)
Appearance	Colorless to light yellow transparent liquid
Viscosity (25 ℃)	1 - 5 mPa·s
pH (10% solution, 25 ℃)	8.0 - 9.5
Boiling point	Approx. 100 ℃
Flash point	Boils, no flash point
Density (25 ℃)	1.00 - 1.10 g/ml
Storage stability	Stable under normal storage conditions down to 0 ℃; if frozen, thaw and stir thoroughly before use; the active agent is thermally stable and non-volatile
Compatibility	Avoid strongly alkaline conditions, oxidizing agents, reducing agents, organic amines and thiols

Minimum Inhibitory Concentration (MIC)

Bacteria	MIC* (ppm)
Alcaligenes faecalis	12
Escherichia coli	260
Pseudomonas aeruginosa	250
Staphylococcus aureus	65
Mold	MIC* (ppm)
Aureobasidium pullulans	204
Cladosporium cladosporioides	204
Yeast	MIC* (ppm)
Candida albicans	32
Saccharomyces cerevisiae	940

Recommended Dosage

Application	Concentration % (W/W)
Synthetic polymer emulsions	0.15 - 0.5
Emulsion paints	0.15 - 0.5
Water-based adhesives	0.15 - 0.5
Household products (laundry detergents, dishwashing liquids, floor and wall cleaners, surface cleaners, window cleaners, floor polishes and waxes, shoe polishes)	0.15 - 0.5
Tape adhesive compounds	0.05 - 0.5
Printing inks	0.05 - 0.5
Paper coating raw materials	0.05 - 0.5
Metalworking fluids	0.05 - 0.8
Agricultural pesticide products	0.05 - 0.5
Aqueous mineral slurries and pigment dispersions	0.05 - 0.5