At present, the commonly used indoor waterproof coatings mainly include rigid mortar, flexible mortar, acrylic ester, and one-component polyurethane. It is generally 18 kilograms and the price ranges from 200 yuan to 500 yuan per barrel. According to Dou Xueqiang, an engineer at the Bohai Building Materials Center, four paints have different properties and each has its own characteristics. Among them, the ratio of rigid mortar to mortar is 1:4. After coating, it can be directly tiled, and the waterproof effect is good. However, the disadvantage is that the elasticity is poor, and it is easy to crack with the grassroots deformation; the ratio of the flexible mortar and the mortar is 5:4, and the mortar has good elasticity and is not easy to deform and crack. Only the price is about twice as high as the former rigid mortar; acrylate: pure liquid, open and cover. Waterproof effect is better than flexible mortar, suitable for long-term flooding environment; single-component polyurethane: both indoor and outdoor use, the best waterproof effect. The disadvantage is that it is sticky and sticky. It is very laborious to use a scraper during construction and the smell is large. The drying cycle of the above four coatings is longer. The general mortar cycle is 24 hours and the ester drying cycle is 24 to 48 hours. Before brushing, it is the most important to handle the substrate, and the surface can be smooth to save the coating. It should be ensured that the brushing surface is dust-free, soilless, and oil-free. It is relatively clean. Doing so can cause the coating to crack, peel, and affect the waterproof effect. At present, the commonly used indoor waterproof coatings mainly include rigid mortar, flexible mortar, acrylic ester, and one-component polyurethane. It is generally 18 kilograms and the price ranges from 200 yuan to 500 yuan per barrel. Paint coating paint
According to the adherence requirements of the product, cells are divided into three categories: cell culture flask,filter cap cell culture flask,suspension culture flasks,cell tissue culture flask Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yongyuemedicals.com
Suitable for suspension culture of common cells and tissues;
The standard type has good cell adhesion performance and is suitable for cell adhesion growth;
Dedicated containing cell pastes (cell clusters that can be used in some special cases, such as cell walls, cell surfaces and secretory cells).
According to the shape of the instrument, it is divided into:
Wide body culture flask;
triangle bottle;
Torticollis flask.