A Bonding Agent Is Not a Guarantee of Adhesion
Created on 01.06
Paragraph 1 | What Is a Bonding Agent
A bonding agent, also known as a surface treatment agent, is a polymer-based material designed to improve adhesion between different substrates and construction layers. Most products are formulated with Vinyl Acetate–Ethylene (VAE) copolymers, which provide a balanced combination of adhesion strength, flexibility, and durability. Bonding agents are primarily applied to wall and floor substrates to modify surface conditions before plastering, tiling, or leveling, ensuring stable bonding performance in subsequent construction processes.
Paragraph 2 | Core Functions
Through mechanisms such as adsorption, coating, and penetration, bonding agents enhance surface adhesion and improve the workability of smooth, dense, or slightly weakened substrates. By forming a transitional interface between old and new materials, they help distribute bonding stress more evenly and reduce common failures such as hollowing, delamination, cracking, and surface dusting. In this way, bonding agents play a critical role in improving the overall reliability and durability of finishing systems.
Paragraph 3 | Typical Applications
Bonding agents are widely used for wall and floor surface preparation, pre-treatment of concrete prior to plastering, tile back coating, and reinforcement of slightly dusty or aged substrates in renovation projects. They are also applied on substrates with high water absorption or low surface roughness to improve bonding stability. Proper selection and application should always be based on substrate type, surface condition, and specific construction requirements to achieve optimal performance.
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