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Waterproof alkali-resistant seal primer for external walls

A technology of sealing primer and alkali-resistant primer, applied in the direction of coating, etc., can solve the problems of affecting the appearance of the main coating film of the base material protection coating, affecting the comprehensive performance of the base-level insulation system, and poor waterproof performance of the primer, achieving excellent coating performance. Membrane quality, good water resistance, excellent water resistance effect

Inactive Publication Date: 2015-04-01
JIANGSU WONIUSHAN THERMAL INSULATION & WATERPROOF TEHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional anti-alkali sealing primer has two major disadvantages: one is the poor quality of the emulsion and the low content of the emulsion, resulting in low final film-forming efficiency and poor anti-alkali sealing performance, which affects the protection of the substrate and the main properties of the coating. The appearance of the coating film; the second is that the waterproof performance of the primer is poor, causing the substrate to seep and damage the base, such as affecting the comprehensive performance of the base insulation system
Easy construction, high quality and low price, and good customer application effect; but the indicators only meet the requirements of the JG / T210-2007 standard, but not far beyond the requirements of this standard

Method used

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  • Waterproof alkali-resistant seal primer for external walls
  • Waterproof alkali-resistant seal primer for external walls
  • Waterproof alkali-resistant seal primer for external walls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The waterproof and alkali-resistant sealing primer for exterior walls is weighed according to the raw material ratio in Table 1. First, add the anti-alkali emulsion and waterproof emulsion into the stainless steel emulsification tank, and disperse at a high speed of 800rpm for 10 minutes; then add multifunctional additives, antifreeze, Thickener, defoamer, wetting agent and bactericidal preservative are dispersed at a speed of 1000rpm for 20 minutes at a high speed; finally, film-forming aids and water are added and dispersed at a speed of 600rpm for 10 minutes to obtain a waterproof and alkali-resistant closed bottom of the outer wall Lacquer finished.

[0023] Table 1 - Raw material ratio of exterior wall waterproof and alkali-resistant sealing primer

[0024]

[0025]

Embodiment 2

[0027] The difference between the preparation process of the waterproof and alkali-resistant sealing primer for exterior walls and that of Example 1 is that the waterproof and alkali-resistant sealing primer for exterior walls is made according to the ratio of raw materials in Table 2.

[0028] Table 2 - Raw material ratio of exterior wall waterproof and alkali-resistant sealing primer

[0029]

Embodiment 3

[0031] The difference between the preparation process of the exterior wall waterproof and alkali-resistant sealing primer and that of Example 1 is that the exterior wall waterproof and alkali-resistant sealing primer is made according to the ratio of raw materials in Table 3

[0032] Table 3 - Raw material ratio of exterior wall waterproof and alkali-resistant sealing primer

[0033]

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Abstract

A waterproof alkali-resistant seal primer for external walls comprises raw materials in percentage by mass as follows: 20-30% of an emulsion for an alkali-resistant primer and 20-30% of an emulsion for waterproof paint. The seal primer is high in finished product solid content, safe and environment-friendly; the seal primer has excellent waterproof, water-permeable, alkali-resistant seal performance and the large adhesive force, and compared with a product of the same quality, the seal primer has the larger construction area and the higher film forming efficiency. Experiments prove that the solid content of the waterproof alkali-resistant seal primer for the external walls is up to 25.2%, the water resistance is up to 168 h without abnormalities, the water permeability is up to 0.1 mL, the adhesive force is Grade 0, and the salting-out resistance is up to 120 h without abnormalities.

Description

technical field [0001] The invention relates to a primer for building exterior walls, in particular to a waterproof and alkali-resistant sealing primer for exterior walls. Background technique [0002] With the increasing number of buildings using exterior wall coatings, especially for external wall insulation systems, choosing coatings is one of the most ideal market materials. However, some walls will have problems such as peeling, blistering, bursting, and discoloration, which will affect the use effect of the external wall insulation system and exterior wall coating. The reason, in addition to the quality of the paint, is mostly caused by the lack of understanding of the primer or the incorrect use of it. The base material of building exterior wall is mostly cement mortar or concrete surface, which is characterized by many voids and strong alkalinity. Among them, the porous structure makes it highly water-absorbing, which makes the surface of the coating not smooth eno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D7/12
CPCC09D125/14C08L2205/035C09D7/63C09D7/65
Inventor 王红刘朋刘志荣
Owner JIANGSU WONIUSHAN THERMAL INSULATION & WATERPROOF TEHNOLOGY
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