Modern house decoration will use a lot of paint, and the general paint contains the main pollution source of harmful gases such as formaldehyde, benzene, ammonia, toluene and xylene. If the paint is not properly selected, the hazard of the emitted gas is very serious. Nothing is more important than health, so environmentally friendly paints are becoming more and more popular. The following Jiuzheng Building Materials Network Xiaobian will tell you some environmental protection paint selection techniques and environmental paint requirements.
First, packaging sealing
Consumers should carefully check the packaging when purchasing paint. Because polyester lacquer has large volatility, the product packaging should be well sealed and there should be no leakage. Metal packaging should not be rusted, otherwise it will show no sealing. Good or too long; also check the production date and shelf life carefully, first remove the inferior paint from the outer packaging.
Second, smell
After opening the lid, the truly environmentally friendly latex paint should be water-based, non-toxic and tasteless, so users should not be ideal if they have a pungent or industrial flavor when smelling. After a period of time, the surface of the original latex paint will form a thick and elastic oxide film, which is not easy to crack, and the defective product will only form a very thin film, which is brittle and has a spicy odor. Mix the latex paint with a wooden stick and pick it with a wooden stick. When the high-quality latex paint flows down, it will form a fan shape. Touch with your fingers, the authentic latex paint should feel smooth and delicate. True latex paints have no pungent odor, while low-grade water-soluble paints for counterfeit latex paints may contain formaldehyde and therefore have a strong irritating taste.
Third, choose paint according to the room
The function of latex paint is very important. Latex paint should be selected according to the different parts of the paint. For example, the latex paint used on the wall of bedroom and living room requires strong adhesion, fine texture, good differentiation resistance and breathability; kitchen and bathroom. Latex paint should be waterproof, mildewproof and easy to wash. The bedroom is made of polyvinyl acetate (commonly called latex paint), but the kitchen, toilet and balcony top are susceptible to dampness. Choose a more scrub resistant coating, strong ethylene propylene or styrene-acrylic latex paint.
Fourth, look at the content of VOC
VOC of paint refers to the total amount of organic compounds contained in the paint. The volatilization of organic matter will cause harm to the environment and the human body, and the amount of these solvents should be minimized. At the same time, it should be noted that these organic compounds are the main components of the main film-forming materials of the coatings, and they cannot reduce the VOC content because they are likely to cause a decrease in the viscosity of the coating, resulting in powder falling off and foaming. Cracking, low scrub resistance, etc.
Ferroalloys, generalized ferroalloys, are products that are added to molten iron as a deoxidizer, elemental additive, etc. in steelmaking to provide a characteristic or meet certain requirements. An intermediate alloy of iron and one or more elements, mainly used in steel smelting. In the steel industry, all intermediate alloys for steel making, whether iron or not (such as silicon calcium alloy), are generally referred to as "iron alloys". It is customary to include certain pure metal additives and oxide additives.
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