Application of anti-mildew agent in sealant

Sealants, such as silicone sealants, MS sealants, and polyurethane sealants, are widely used as sealing and bonding materials in kitchens, toilets, and other places with humid and hot conditions, such as basin installation, countertop installation, bathroom toilet, shower room, Bathroom cabinet installation, etc.

These places have suitable temperature and high humidity, poor ventilation, and easy to breed microorganisms. The sealant material often contains a large amount of grease components (hydrocarbons) to provide a good food source and breeding place for microorganisms. The massive growth and spread of microorganisms have caused the material structure to be eroded, degraded and deteriorated, which affects the performance of the material and shortens its service life. It also directly affects the appearance of the material and produces a moldy odor that seriously threatens people's health.

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▲ Sealant with black spots and yellow mold spots


The kitchen is a place where people cook meals and provide delicious food for their families. At the same time, it is a very warm and happy place; the bathroom is a place where people are washed away from fatigue and dirt and shine. But if this place becomes a breeding ground for mold, it will affect your mood and endanger your health.

Molds reproduce by producing spores. These mold spores are airborne and can fall in the dust and grow. Dust containing mold spores can cause symptoms such as eye congestion, chronic rhinitis, bronchial asthma, allergic alveolitis, dermatitis, etc. if exposed to mold allergy patients.

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▲ Photograph of mold under the microscope


At the same time, some mycotoxins have a strong triple identity, which can cause acute or chronic poisoning of humans and animals after ingestion. In recent decades, the research on mycotoxins has developed rapidly, and the mycotoxin-producing molds mainly include Penicillium, Aspergillus, Fusarium, Mycoplasma, Trichoderma, and Grapeformis. Based on chemical structure calculations, it is estimated that 300 kinds of mold metabolites are toxic to humans and animals.

With the rapid progress of modern medicine, the average life span of human beings has been continuously extended. Some of the chronic diseases that were not valued by people before are closely related to mycotoxins.

Therefore, to improve the mold resistance of the sealant, not only can clean the product itself and prolong its service life, the most fundamental thing is to improve the safety of the product, which meets the needs of people for high quality and healthy life.

Adding mildew inhibitor to the sealant formulation is an effective anti-mildew treatment. Whether the anti-mold agent is suitable, the main criterion is the anti-mold effect. In addition, the anti-mold agent should also have good light and heat stability, low volatility, and low toxicity, and it should not affect the process performance and mechanical properties of the sealant.