Why is it necessary to apply a primer when installing self-leveling flooring?
Release Time:
2015-09-11
Source:
Why is it necessary to apply a primer when installing self-leveling flooring?
With the continuous development of the socio-economic landscape, the self-leveling cement market has been steadily expanding, driving increased activity in the self-leveling construction sector. Self-leveling installation demands a high degree of professionalism and strict adherence to standards; during the construction process, contractors often encounter inquiries from clients regarding Interface agent You may be wondering: although the amount of interface agent used is relatively small and only a thin coat is applied, it plays a crucial role. So what exactly is its function? Let’s find out together below:
In today’s market, interface agents are available in two forms: water-based and powder. Both are applied to concrete or mortar surfaces to provide excellent adhesion for self-leveling compounds, reduce substrate absorbency, and bind loose dust. Without an interface agent, self-leveling compounds cannot perform properly; the agent is used as a primer coat for self-leveling screeds. It reduces porosity—excessive porosity can draw moisture from the self-leveling binder, leading to premature drying and low strength. It also bonds residual dust, enhancing substrate strength, improves the surface finish of the self-leveling compound by significantly reducing defects such as pinholes, and increases adhesion between the self-leveling layer and the substrate.
Construction precautions for interface agents:
The interface agent is suitable for application only at temperatures between +5°C and +35°C. Do not pour it directly into the sewer. After use, seal the container lid tightly. Tools and any excess interface agent can be cleaned with water.
For substrates with high water absorption, it is recommended to dilute the interface agent with water at a 1:1 ratio before application, allow it to dry, and then apply a second coat of undiluted interface agent.
