How to choose waterproof coating?
一、防水涂料要选刚性，还是柔性的?
1、柔性的防水涂料，是通过化学反应成膜，从而隔绝水分和建筑物。柔性防水具有弹性，具备较好的抗裂性能，一般用于新旧房的装修。
Should waterproof coatings be rigid or flexible?
A flexible waterproof coating is formed by chemical reactions to form a film, thereby isolating water and buildings. Flexible waterproofing has elasticity and good crack resistance, and is generally used for the decoration of new and old houses.
2、刚性的防水材料是通过提高混凝土基层的密实度、减少空隙率，从而提高基层的抗渗透性能。而刚性防水材料的适应变形能力稍差，但是其硬度和强度比较好，所以一般多用于防潮。
Rigid waterproof materials improve the impermeability of the concrete base by increasing its compactness and reducing its porosity. However, rigid waterproof materials have slightly poor adaptability to deformation, but their hardness and strength are relatively good, so they are generally used for moisture-proof purposes.
二、防水涂料是否具有耐候性Does the waterproof coating have weather resistance
耐候性是指防水材料因受到阳光照射，温度变化，风吹雨淋等外界条件的影响，而出现的褪色，变色，龟裂，粉化和强度下降等一系列老化的现象。
Weathering resistance refers to a series of aging phenomena that occur in waterproof materials due to external conditions such as sunlight, temperature changes, wind, rain, etc., such as fading, discoloration, cracking, pulverization, and strength reduction.
三、防水材料是否具有粘结力Does the waterproof material have bonding force
防水材料粘结力强，涂料中的活性成份可渗入水泥基面中的毛细孔、微裂纹并产生化学反应，与底材融为一体而形成一层结晶致密的防水层。若是具有粘结力，有利于后期进行墙面贴砖。
Waterproof materials have strong adhesive strength, and the active ingredients in the coating can penetrate into the pores and microcracks in the cement base surface, causing chemical reactions and integrating with the substrate to form a crystalline dense waterproof layer. If it has adhesive force, it is beneficial for later wall tiling.
四、防水涂料是否具有耐水性
Does the waterproof coating have water resistance
市面上很多假冒产品根本不具有耐水性，那么如何检查涂料的防水性呢?小编给大家介绍一个方法，将涂料分多次涂刷在水泥块上，成膜厚度1.2-1.5毫米，放置7天，放入1%碱水中浸泡7天，不分层，不空鼓为合格。
Many counterfeit products on the market do not have water resistance at all, so how to check the waterproofing of coatings? The editor will introduce a method to everyone: apply the coating multiple times on the cement block, with a film thickness of 1.2-1.5 millimeters. Leave it for 7 days and soak it in 1% alkali water for 7 days without layering or hollowing. It is considered qualified.
