Cement-free dry powder decorated mortar dedicated cover agent

Abstract

The invention discloses a cement-free dry powder decorated mortar dedicated cover agent. The cover agent can resist water, alkali, and contamination, is capable of improving the waterproof performance of dry powder decorated mortar, has an excellent weatherability, and is composed of the following components in percentage by weight: 60 to 70% of water, 20 to 35% of pure acrylic emulsion, 1.8 to 2.4% of film forming agent, 0.1 to 0.2% of antifoaming agent, 0.3 to 0.5% of bactericide, and 0.1 to 0.2% of thickening agent. The addition amount of emulsion is reduced to reduce the luster of the cover agent. The obtained paint film has a low glossiness but has a good water white resistant and yellowing resistant performance. At the same time, the addition amount of auxiliary agents is low, the VOC (volatile organic compound) discharge is reduced, and the cover agent can be painted through roller or spraying, has been widely used in a great amount of engineering projects, and is welcomed by consumers.

Description

technical field [0001] The invention relates to a high-molecular polymer composite material, in particular to an overcoat agent specially used for cement-free dry powder decorative mortar, and belongs to the field of building materials. Background technique [0002] Nowadays, many overcoating agents have various defects, such as poor water whitening resistance, poor stain resistance, and easy to bloom during construction. If these overcoating agents are used on cement-free dry powder decorative mortar, the mortar will easily fade during roller coating and cause separation. Unclear joints affect the appearance, so with the popularization and application of cement-free dry powder decorative mortar, it is very necessary to develop a special covering agent for cement-free dry powder decorative mortar. The interaction between the bactericide and thickener used in the finish agent of the present invention and the cement-free dry powder decorative mortar endows the decorative morta...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, many overcoating agents have various defects, such as poor water whitening resistance, poor stain resistance, and easy to bloom during construction. If these overcoating agents are used on cement-free dry powder decorative mortar, the mortar will easily fade during roller coating and cause separation. Unclear joints affect the appearance, so with the popularization and application of cement-free dry powder decorative mortar, it is very necessary to develop a special covering agent for cement-free dry powder decorative mortar

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