There are some advertising routines that we are familiar with but many people may be kept in the dark.For example,
There is 0 sucrose in the food, but it does not mean sugar-free,
There is 0 fat in food, but it does not equal calories.
Some routines can be said to be hard to guard against such as the field of silicone “green” sealant.(The “green" sealant refers to eco-friendly sealant )
Silicone sealants have been used in construction for many years, and are often used for sealing and bonding in building curtain walls, doors and windows, assembly and other fields. With the advancement of urbanization, silicone sealants have penetrated into all walks of life. , Lighting, household appliances and other subtleties play a role that cannot be underestimated. At present, silicone sealants are more and more widely used, and consumers' requirements for silicone sealants are not limited to basic bonding and sealing functions. At the same time, the double carbon action has also put forward new requirements for the total emissions of buildings. Under the superposition of double factors, green and environmentally friendly silicone sealants have become a new trend in the industry.
New demands have inspired new markets. How should ordinary consumers choose real “green” silicone sealants?
Today, we find the answer together with you!
1. What are the conditions to be considered a real “green” silicone sealant?
Before explaining "green" sealant products, we must first understand what is a "green" product? Usually what we call "green" products need to be judged from four attributes of energy, resources, environment and quality ( "General Rules for Green Product Evaluation" GB/T33761-2017).
In the field of sealants, the two attributes of energy and resources have little effect on the green performance of silicone sealants. Environment and quality have become the two most critical attributes for evaluating whether silicone sealants are "green". Low VOC, low physiological toxicity, high Quality (not oil-extended) and so on fall into the category of both.
2. How to define low VOC? What is the latest standard on the limit of VOC content?
Among the two components of environment and quality, low VOC can be said to be one of the most familiar environmental attributes for consumers. As early as 2001, these national mandatory standards have made clear requirements for the limit of harmful substances in sealants for interior decoration——
GB 18583 "Interior Decoration Materials - Limits of Hazardous Substances in Adhesives"
GB 30982 "Limits of Hazardous Substances in Construction Adhesives"
GB/T 33372 "Limits of Volatile Organic Compounds in Adhesives"
……
On March 4, 2020, the National Standardization Management Committee issued the new standard GB 33372-2020 "Limits of Volatile Organic Compounds in Adhesives", which further subdivided the limit requirements for adhesives in various application fields. For the same type of adhesive, different VOC content limit values are also distinguished according to the actual situation of different application fields.
▼VOC content limit of bulk adhesives (GB 33372-2020)
3. In addition to low VOC, how to interpret the rest of the properties and performance of “green” silicone sealants?
01. Low Physiological Toxicity
At present, the mainstream neutral silicone sealants on the market can be generally divided into alcohol type and ketoxime type sealants according to the small molecular substances released during curing. Alcohol-type sealants, the small molecules released during curing are generally small alcohol molecules such as methanol, ethanol (commonly known as alcohol), and ketoxime-type sealants, the small molecules released during curing are generally ketone oximes such as butanone oxime Small molecule.
Volatile Physiological Toxicity Test (Plant Samples)
The two types of sealants and the same plants were placed in a closed environment for 10 days, and the influence of different types of sealants on the growth of the same plants was investigated.The difference in environmental protection between alcohol-type and ketoxime-type sealants was compared by biotoxicity.
The experimental results are as follows:
The experimental conclusions show that the small molecules of alcohol released during the curing process of alcohol-based sealant have no obvious adverse effects on plant growth, and are more environmentally friendly.
02. High quality sealant
Concerned about the environmental protection and health of the indoor environment of buildings, Siway strongly recommends that users choose high-standard and high-quality sealant products, and avoid buying and using some low-end and inferior products on the market, such as oil-filled sealants filled with white oil sealant. Not only does it have poor durability, it will age, crack, and debond, but the white oil filled in it will continue to diffuse and volatilize, causing a large amount of TVOC emissions, which affects the indoor environment, and the environmental protection performance cannot be guaranteed.
4. How to choose the brand of “green” sealant?
In a word:
Just choose SIWAY!
As a leading brand in the sealant industry, SIWAY has always been committed to safe, green, and healthy sustainable development. On the one hand, it has truly practiced the concept of green development in the whole process of product research and development, formula design, quality control standards, and intelligent manufacturing.
On the other hand, it also actively responds to the call for "green certification", takes green environmental protection as an important development strategy of the company, and leads the industry in terms of green product standards. SIWAY has successively participated in the compilation of relevant standards such as the national standard GB/T 35609 "Green Product Waterproof and Sealing Materials" and the group standard T/CECS 10029 "Evaluation of Green Building Materials and Construction Sealants", providing a comprehensive environmentally friendly adhesive sealing system adhesive solutions for every consumer who pursues quality and beauty.
Do you have a deeper understanding of green silicone sealants after seeing this? Still want to know more product truth, please look forward to meeting with you in the future.
SIWAY protects every consumer with “Green”,
Persevere, transcend, and empower the good.
Post time: Aug-16-2023