Scouring water pack sand, why become a full face of flowers?

Water sand bag colorful coating has been customer recognition as a new type of architectural coatings, but some of the water bag will flower after sand and colorful coating applied to walls, affect the whole building is beautiful. Today, I'm here to tell you: why anti-scouring water bag of sand and colorful coating becomes full of flowers? The main reason for building exterior wall flower is as follows: 1. Alkali resistant seal primer spraying uneven. Primer coating uneven can lead to inconsistent wall alkali resistance, water sand bag colorful coating spraying on wall body results in uneven color, deep in some places, some places. 2. Uneven coating. Water sand bag of colorful coating pressure or speed is different, can lead to water bag of sand thickness different colorful coating, paint drying speed, frosting occurs after drying. 3. Paint coating is not even. Paint is to protect the water bag sand the last barrier of colorful coating. Uneven paint spraying can lead to water pack sand anti-fouling ability colorful coating, can appear later frosting phenomenon. 4. The quality of the water sand emulsion is different. Low cost water sand bag multicolor coating will use inferior emulsion to reduce the cost. Inferior emulsion water resistance is poor. Water pack sand color spray paint on the wall, after the rain will have white flower.