When purchasing Jinan container room, we should pay attention to the paint film outside. The quality of the paint film of the container room affects the service life, so how to check the paint film?

1、涂層顏色檢查和外觀檢查

1. Coating color inspection and appearance inspection

確定集裝箱房屋的油漆顏色和外觀，需要采用目視的方法，將漆膜的顏色和外觀與標準色板和標準樣品進行對比，進行觀察和評價。油漆和施工前應檢查油漆的顏色，涂在試板上的油漆干燥后，顏色應與設計中規定的顏色相匹配。檢查通常與標準的顏色代碼進行比較。漆膜外觀應均勻、致密、富有光澤。

To determine the paint color and appearance of the container house, it is necessary to use the visual method to compare the color and appearance of the paint film with the standard color plate and standard sample for observation and evaluation. Before painting and construction, the color of the paint shall be checked. After the paint applied on the test plate is dry, the color shall match the color specified in the design. The check is usually compared with the standard color code. The appearance of the paint film shall be uniform, dense and shiny.

2、漆膜柔韌性測試

2. Film flexibility test

通過在不同直徑的軸桿上彎曲樣品板并在不損壞涂層的情況下表示較小軸桿的直徑來測量容器外殼涂層的柔韌性。涂膜柔韌性是指涂膜彎曲后附著在涂膜上的涂膜的綜合性能，與涂膜的拉伸強度、拉伸強度、厚度和附著力有關。

The flexibility of the container shell coating is measured by bending the sample plate on shaft rods of different diameters and representing the diameter of the smaller shaft rod without damaging the coating. Film flexibility refers to the comprehensive performance of the film attached to the film after bending, which is related to the tensile strength, tensile strength, thickness and adhesion of the film.

3、涂膜光澤度的測定

3. Determination of film gloss

當光線照射到物體表面時，反射的光線的表現就是光澤。樣品的光澤度表示為在相同條件下，在給定入射角下，樣品表面的鏡面光量與標準樣品表面的鏡面光量之比的百分比。

When light shines on the surface of an object, the reflected light is glossy. The gloss of the sample is expressed as the percentage of the ratio of the amount of mirror light on the sample surface to the amount of mirror light on the standard sample surface under the same conditions and at a given incident angle.

4、涂膜耐水性測試

4. Water resistance test of coating

涂膜的耐水性是通過將涂膜浸入水或沸水中來測試的，它表示經過一定時間后涂膜的表面變化。耐水性是指涂膜浸入水中時發生的物理化學反應的性能變化。漆膜的耐水性是檢驗漆膜質量的一項重要項目，因為許多涂料長期在水中、地下或潮濕環境中使用。即使在水中長期不使用，若產生氣泡、失去光澤、變色，或掉入水中，涂膜仍可恢復原狀，但涂膜質量也變壞了。受其影響，保護性能降低。

The water resistance of the film is tested by immersing the film in water or boiling water, which indicates the surface change of the film after a certain time. Water resistance refers to the performance change of physical and chemical reaction when the film is immersed in water. The water resistance of paint film is an important item to test the quality of paint film, because many coatings are used in water, underground or humid environment for a long time. Even if it is not used in water for a long time, if there are bubbles, loss of luster, discoloration, or falling into water, the film can still be restored to its original state, but the film quality is also deteriorated. Affected by it, the protection performance is reduced.

5、涂膜耐熱性測試

5. Film heat resistance test

涂膜的耐熱性是指通過在空氣烘箱或高溫爐中加熱涂膜，使其表面發生合理變化或達到預定溫度和時間后的現象。

The heat resistance of the film refers to the phenomenon that the surface of the film changes reasonably or reaches the predetermined temperature and time by heating the film in an air oven or high-temperature furnace.

各種集裝箱房屋涂料都有使用溫度范圍，溫度過高或過低都會影響涂料質量，特別是在高溫條件下使用的涂料需要檢查耐熱性，防止施工后使用。發生剝落、起泡、開裂、變色，使涂膜的保護性能喪失或變差。

All kinds of coatings for container houses have a range of application temperature. Too high or too low temperature will affect the coating quality, especially the coatings used under high temperature conditions need to check the heat resistance to prevent use after construction. Peeling, blistering, cracking and discoloration occur, resulting in the loss or deterioration of the protective performance of the film.