Anti-mold and antibacterial agent for putty paste, dry film anti-mold agent, long-lasting and effective
Anti-mold and antibacterial agents for putty paste are chemical additives specifically added to putty paste to inhibit the growth and reproduction of mold, bacteria and other microorganisms. Their core components, characteristics, application scenarios and typical products are as follows:
I. Core Components and Mechanism of Action
Organic compounds
Benzimidazoles: By destroying the cell membrane structure of microorganisms and inhibiting their metabolic activities, they have a strong inhibitory and killing effect on common molds such as Aspergillus Niger and Aspergillus flavus.
Pyridine derivatives: Interfere with microbial enzyme systems, block energy synthesis, suitable for highly alkaline environments (pH 9-12), heat-resistant and highly stable.
Triazines: Broad-spectrum bactericidal, effective against bacteria, yeasts and algae, and do not cause drug resistance.
Inorganic compounds
Nano-silver/zinc oxide: By releasing silver ions or zinc ions, it destroys the protein structure of microorganisms, providing long-lasting antibacterial effects with high safety (LD50> 10,000 mg/kg).
Zinc-based antibacterial agent: Prepared from environmentally friendly raw materials, it has a broad-spectrum killing effect on mold and bacteria, and is suitable for dry film systems such as putty powder and coatings.
Compound fungicide
Combining multiple components (such as sustained-release agents and light stabilizers), it enhances the bactericidal performance and extends the validity period. It can function stably under strong ultraviolet rays or acid rain conditions.
Ii. Core Features
Broad-spectrum antibacterial property
It effectively inhibits common molds and bacteria such as Aspergillus Niger, Aspergillus flavus, Trichoderma, Mucor, Staphylococcus aureus and Bacillus subtilis, preventing wall mold and paint cracking and peeling.
Environmental adaptability
Wide pH range: Applicable pH 2-14, especially suitable for alkaline putty paste (pH 9-12).
Temperature and weather resistance: Decomposition temperature >280℃, resistant to ultraviolet rays and acid rain, suitable for high-temperature and high-humidity environments.
Strong stability: Miscible with water, non-flammable, no VOC emissions, meeting environmental protection requirements.
Safety and ease of use
Low-toxicity and environmentally friendly: It is a slightly toxic compound with no teratogenicity or carcinogenicity. The acute oral toxicity LD50 is greater than 10,000 mg/kg.
Small addition amount: The recommended dosage is 0.1%-0.5%. It has a low cost and is easy to operate, and can be added at any stage of the mixing process.
Iii. Application Scenarios
Interior wall putty paste
Prevent the walls in damp areas such as bathrooms and basements from getting moldy, extend their service life, reduce indoor bacteria and mold, and enhance the health of living.
Exterior wall putty paste
Resist the erosion of rain and ultraviolet rays, prevent moisture from the exterior walls from seeping in and causing the interior walls to become damp, and avoid the growth of mold.
Special environment putty paste
High-alkali systems: such as cement-based putty paste, alkali-resistant and anti-mold agents need to be used.
High-temperature environments: such as industrial plants, high-temperature resistant fungicides should be selected.
