Four main points should be paid attention to in the design of epoxy floor paint coating system: The design of epoxy floor paint coating system is due to the use of floor paint and the complex and changeable construction environment. Therefore, it is necessary to specially design the epoxy floor paint coating system according to the specific use environment and customer requirements. The following four points should be considered in the design of epoxy floor coatings: 1. Basic performance indexes of epoxy floor coatings: Basic performance indexes of selected floor coatings should meet the standard HG/T 3829-2006 of the Chemical Industry Standard of the People's Republic of China. Waterborne floor paint and elastic floor paint are not appropriate. ②地坪漆涂层的使用环境
2. Use environment of floor coating
On the one hand, the effect of acid, alkali, salt, solvent, oil, sea water, fresh water, wind sand and other media on the corrosion of floor paint should be fully considered. The selected floor paint should have strong resistance to corrosion media, such as epoxy floor paint, polyurethane floor paint, vinyl acetate floor paint. Chlorinated polyolefin floor paint and poly-vein elastomer floor paint have good resistance to chemical media, but the emphasis of resistance is different, we need to make the best choice according to the actual situation, on the other hand, we should consider the impact of machinery and load on the floor rolling, impact and abrasion, the design of floor paint coating is strong. It should meet the requirement of use. In addition, if the moisture content of the base is high for a long time, it is necessary to consider the sensitivity of the floor paint to moisture and the permeability of the coating. The impermeable floor paint coating is easy to be bubbled and peeled off by underground water vapor. If we do not make the first floor of the waterproof layer, we should construct the waterborne epoxy floor paint.
3. Cost and target service life of floor coating
Service life is based on the use of the floor environment, floor paint coating cost, maintenance or renovation difficult to determine. Long-term floor paint coatings generally require higher construction requirements, thicker coatings, higher cost, maintenance or renovation is relatively difficult. Ordinary thin-coated floor paint is cheap, easy to maintain and renovate, but easy to damage, the service life is not long, generally for 3-5 years. Solvent-free epoxy self-leveling floor paint has a high cost, but can provide a good decorative effect, chemical medium resistance, impact and rolling resistance of the floor paint coating, relatively long service life, can exceed 10 years.
4. The matching of all lacquer coatings in various parts of the country
In order to obtain the floor paint coatings with good performance, such as good adhesion and corrosion resistance, durability, resistance to heavy pressure, it is often necessary to use primer, mid-coat and top coat together, and formulate the most appropriate construction process to meet the multiple performance requirements.
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