What is Oamiguard SPT40 Antibacterial Agent?
Oamiguard SPT40 is an antibacterial agent based on the active ingredient sodium α-mercaptopyridine-N-oxide, with broad-spectrum activity against fungi and bacteria. It imparts antibacterial or mildew-resistant effects to the surface of various water-based products and is widely used in architectural coatings, building materials and in-can preservation and dry-film mildew prevention of water-based product systems.
Applications
- Architectural and industrial paints and coatings
- Building materials (floor adhesives, joint fillers, sealants, etc.)
- Water-based mineral and pigment slurries
- Synthetic polymer emulsions
- Water-based adhesives
- Metalworking fluids
Advantages
- Broad-spectrum antibacterial and mildew prevention, effective against both fungi and bacteria
- Particularly effective as a single-active dry-film preservative
- Non-specific mode of action, extremely unlikely to cause bacterial resistance
Physical & Chemical Parameters
| Composition | Sodium α-mercaptopyridine-N-oxide |
| Appearance | Pale brown liquid |
| pH (5% slurry in water at 20 ℃) | 8.5 - 10.5 |
| Boiling point | approx. 109 ℃ |
| Storage stability | The active ingredient is thermally stable and non-volatile; stable under normal storage conditions |
Minimum Inhibitory Concentration (MIC)
| Bacteria | MIC* (ppm) |
| Staphylococcus aureus | 8 |
| Escherichia coli | 8 |
| Pseudomonas aeruginosa | 485 |
| Molds | MIC* (ppm) |
| Aspergillus niger | 8 |
| Chaetomium globosum | 10 |
| Fusarium | 32 |
| Yeasts | MIC* (ppm) |
| Candida albicans | 6 |
| Pityrosporum | 6 |
Recommended Dosage
| Application | Concentration % (W/W) |
| Synthetic polymer emulsions | 0.1 - 0.25 |
| Latex paint | 0.1 - 0.25 |
| Mineral slurries | 0.1 - 0.25 |
| Metalworking fluid concentrates | 1.0 - 3.0 |
| Water-based adhesives | 0.1 - 0.25 |
| Enzyme preparations | 0.1 - 0.25 |
Package
- 25 kg plastic drum
- 200 kg plastic drum
- 1000 kg plastic drum
Storage
- Transport and store at 5 - 35 ℃
- Store in a ventilated, dry and cool place, protected from direct sunlight and freezing
- Valid for one year
- Water-based additive, non-hazardous