Common Problems in Self-Leveling Mortar Construction (Part 2)
Release Time:
2015-09-15
Source:
Common Problems in Self-Leveling Mortar Construction (Part 2)
Self-leveling mortar Common Construction Issues
I. Sanding of Self-Leveling Floor Coating
Excessive water addition leads to self-leveling sedimentation and layering;
The original floor surface was damp, resulting in excessively long self-leveling drying time;
Uneven mixing of the self-leveling compound;
Construction temperature is too low;
The self-leveling compound was sanded for too long, or the sanding pads were too coarse;
Quality issues with the self-leveling compound itself;
Ambient temperature too high;
Wind speeds at the construction site are relatively high;
2. After self-leveling compound has cured, the color is uneven and grayish-white patches appear.
The water-to-pourable self-leveling compound ratio varies for each package (but remains within the permitted range);
Before applying the self-leveling compound, localized pooling of the primer occurred on the substrate due to incomplete drying of the primer.
Excessive water addition can easily lead to the appearance of a grayish-white color;
Deep pits in the local substrate result in thicker self-leveling fills and darker colors as the pits deepen.
Uneven or insufficient mixing.
3. The self-leveling compound dries too slowly.
Excessive water addition;
The interface agent has not penetrated;
The base layer is a non-absorbent surface;
Indoor temperature or store temperature is too low;
Poor ventilation slows down moisture evaporation;
The moisture content at the base layer exceeds the construction standard.
IV. Bulging of PVC Flooring
Uneven adhesive application;
The glue drying time is too short or too long;
The flooring is relatively hard, especially in winter, and a heat gun was not used during installation.
Self-leveling screed delamination causes floor blistering;
