Judging from the scene,
to the material plan.

The facing layer does not reinforce the failed base layer or absorb ongoing structural movements.

• Check the empty drum by tapping and remove loose, powdery and contaminated layers.
• Distinguish between stable cracks, active cracks and structural cracks, and record their locations and changes.
• Confirm that the screed, tiles, boards and interfaces between different materials are secure.

Breathable paint is not a waterproof layer, nor do microcement and resin finishes seal in ongoing water sources.

• First determine whether the water comes from leakage, condensation, capillary rise or residual moisture from construction.
• Check bathroom, window edges, exterior walls, roofs, pipe roots and ground moisture paths.
• After the water source has been eliminated and drying is complete, determine the primer and finish system.

Different base layers require different interface treatments, and the primer is not the same material that can be universally replaced.

• Determine whether the base layer is an absorbent, low-absorbent, or non-absorbent surface.
• The old coating is first inspected for adhesion and compatibility, and the ceramic tiles focus on seam development.
• After the primer is completed, make a small area adhesion sample before entering the complete system.

"Seamless vision" does not mean canceling the active seams and functional nodes that must be retained in the building.

• Structural joints, expansion joints and continuous displacement joints must continue correctly in the facing.
• Yin and Yang corners, countertop edges, stair treads and doorways need to be individually reinforced or closed.
• Drainage, slope and pipe root waterproofing should be inspected before the decorative layer.

The mixing ratio, mixing sequence and usable time of different products cannot be applied to each other.

• The valid technical table and packaging instructions of the current batch shall prevail, and the parameters of the old version will not be used.
• Record the ambient temperature and humidity, material temperature, start stirring and stop use time.
• Two-component materials must not be used beyond the opening time by adding water or stirring again.

The theoretical coverage is only used for preliminary estimation, and the actual consumption depends on the roughness of the base layer, tools and construction techniques.

• First confirm the net construction area, number of product layers and theoretical dosage of each layer.
• Base layer loss, tool residue and on-site repairs are added to infer the quality without using a single barrel area.
• The waiting time between layers is based on actual drying and technical documents, not just a fixed number of hours.

The color card can only select the direction, and the sample must confirm the color, texture, gloss and construction continuity at the same time.

• Complete the mockup using formal materials, actual tools, and planned construction crews.
• Observe under natural light, artificial light and side light respectively.
• Record the scraping direction, dilution, number of layers, protective layer and sign-off standards.

Surface dryness does not mean complete curing. Early traffic, water accumulation and intensive cleaning will damage the protective system.

• Confirm sealing, final protective coat, gloss and intercoat waiting requirements.
• Time boundaries for light loading, full cure and first cleaning are indicated before delivery.
• Develop methods for furniture floor mats, cleaning agents, water treatment and local repairs.