Introduction to the types of exterior wall paint

Paint is a kind of decoration of housing materials, there are indoor wall paint and outdoor wall paint, different places with different types of paint, so we need to pay attention when buying, is the need to master some of the skills of buying, so exterior paint what are the types of paint? What are the tips for buying exterior paint? If you want to understand, with us to understand it.

One, the types of exterior paint

1. Latex paint

Latex paint, it is a water as a medium, acrylates, styrene-acrylate **** polymer, vinyl acetate polymer aqueous solution as a film-forming material, adding a variety of auxiliary components made of film-forming materials are insoluble in water, film The water resistance and weather resistance is greatly improved than the first category, wet scrubbing does not leave traces, and there are different types of decoration such as flat, high light. Because of its less color at present, the decorative effect is similar to that of category 106.

2. Colorful coatings

The third category is currently very popular colorful coatings, the coating film-forming material is nitrocellulose, in the form of oil-in-water dispersed in the water phase, a spray can be formed in a variety of colors and patterns. Multi-color coatings are mainly used in imitation of stone effect, so also known as liquid stone, also known as horizon exterior paint. It is composed of incompatible two-phase components, in which one phase of the dispersing medium is the continuous phase and the other phase is the dispersed phase, and when it is coated, a luxurious, beautiful and colorful pattern can be obtained through one-time spraying. This kind of pattern formed by one-time spraying is completely different from the colorful pattern that can be formed only through the completion of multiple processes in sequence.

3. Thick type

The thick type of exterior paint is the acrylic emulsion primer, which is made of organic polymer material styrene, acrylic and emulsion as the main film-forming substances, plus different pigments, fillers and aggregates and made into a thick coating. This coating has good water resistance, alkali resistance, pollution resistance and weather resistance.

Second, the purchase of exterior paint skills

1. Heavy metal content. Heavy metals are soluble lead, cadmium, chromium, mercury and other substances, some heavy metals in a certain concentration of trace elements necessary for the human body, but the amount of human body beyond the very limit of human tolerance, can form a serious physiological hazards, triggering a variety of diseases. Lead poisoning is more serious for children, who are particularly susceptible to lead. U.S. federal regulations CFR1303 lead content greater than 60mg/Kg for lead paint, stop in the public **** place or indoor decoration with.

2. Wipe resistance. Wipe resistance depends primarily on the emulsion content and quality, and this primary raw material also determines the main function of the wall paint, such as the number of wipe resistance, weather resistance and color retention and other functions. Good wall paint products are basically more than 5,000 times, the number of times on the market to pay more attention to the number of times of wipe-resistant comparison of ultra-white products. Functional objective 2: anti-mold antibacterial function or super white function, perhaps some waterproof function.

3. VOC (volatileorganiccompounds, that is, volatile organic compounds) content. In the national implementation of the mandatory implementation of the norms, that is, VOC ≤ 120g / L. VOC on the human body has three types of impact: odor and sensory effects. Mucosal effects and other systemic toxicity resulting in pathologies. Certain VOCs have been shown to be carcinogens or suspected carcinogens.

Exterior walls also need to paint, just paint a different kind of just, so the purchase of skills or to have, so the types of exterior paint and purchase skills are which, I think you see the above small introduction also understand it.