When evaluating the environmental performance of gypsum self leveling defoamers, the composition table of the defoamer should be checked first to ensure that it does not contain toxic or harmful substances such as heavy metals, volatile organic compounds (VOCs), etc. High quality gypsum self leveling defoamers should use environmentally friendly raw materials, such as natural plant-based oils, high molecular weight polymers, etc. Consider whether defoamers can be degraded by microorganisms in the natural environment after use to reduce long-term pollution to the environment.

Check if the defoamer has passed relevant environmental labels or certifications, such as China Environmental Labeling Product Certification (Ten Ring Certification), ISO 14001 Environmental Management System Certification, etc. These certifications indicate that the product meets environmental requirements during production, use, and disposal. Confirm whether the defoamer meets the requirements of international environmental regulations, such as REACH (EU Chemical Registration, Evaluation, Licensing and Restriction Regulation), RoHS (Restriction of Hazardous Substances Directive), etc.

Understand whether the production process of defoamers is environmentally friendly, including aspects such as raw material procurement, production and processing, energy consumption, and waste disposal. Environmentally friendly production processes can reduce negative impacts on the environment. Will the use of defoamers during gypsum self leveling construction generate harmful gases or dust, and pose a risk to construction personnel and the environment. High quality defoamers should maintain low volatility and low irritation during use. Consider whether defoamers are easy to dispose of after disposal and whether they will cause secondary pollution to the environment. Environmentally friendly defoamers should support environmentally friendly treatment methods such as recycling or safe landfill.

Review user evaluations and feedback on defoamers to understand their environmental performance and performance in practical applications. Pay attention to the application cases of defoamers in large-scale engineering or environmental projects to verify their environmental effectiveness in practical applications.

In summary, assessing the environmental performance of gypsum self leveling defoamers requires comprehensive consideration of its composition, environmental standard certification, environmental impact assessment, as well as user feedback and case studies. When choosing defoamers, it is recommended to prioritize products that have been certified for environmental protection, have good user reputation, and environmental performance. At the same time, attention should also be paid to complying with relevant environmental regulations and operating procedures during use to ensure the environmental friendliness and safety of the construction process.