Flooring Coating Common problems and prevention
Water bubble (After the puncture, water came out.)
Reason:
1. Excessive Moisture content in foundation;
2. No waterproofing.
Prevention method
1. The ground floor must do waterproofing.
2. Bake wet ground with a blowtorch
3. Moisture-proof system should be adopted
Color Bubble
Reason:
Ground oil pollution is too heavy
Prevention method:
1. It is suggested to remove the old ground and build cement again.
2. If the oil pollution is not very serious, the oil pollution should be removed first.
Air bubble
Reason:
1. Foundation closure is not good
2. Non-standard construction method
Temperature is inappropriate during construction
Prevention method:
1. The primer must be sealed.
2. The terrazzo must be sealed with primer or middle coat before top coat.
Constructor should not be too fast during top coat application (Epoxy) or middle coat application (polyurethane), and must be in place when the tool is returned
After application, turn white once meet water
Reason:
Incomplete solidification
Prevention method:
1. When mixing, proportioning should be accurate and the mechanically stirred evenly.
2. Ensure construction temperature is 10-30℃
Flake off
Reason:
The ground is powdered; the foundation treatment is not in place
Prevention method:
1. It must polish and removed the surface powdered layer. It suggested adding the permeable primer to reinforce.
2. When prepare the materials, Primer should be more quantity than normal ground.
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Color difference
Reason:
1. The difference of construction time results in slight color difference of floor.
2. Different batch.
Prevention method:
1. Construct at the same time.
2. For different batches of materials, it is recommended to mix together to avoid chromatic aberration.
Mark-Trowel/roller brush/squeegee
Reason:
1. Material not used up in effective time.
2. Less usage per square meter
Prevention method:
1. Each mixture 10-15kg is the most appropriate, used up and then matched.
2. It should be crossed application by roller brush.
Part non-curing
Reason:
1. Non-standard proportioning
2. Unstirred barrel bottom
Prevention method:
1. When mixing, it should ingredients strictly according to the proportion.
2. Additives should be added according to factory requirements under special circumstances
Overall non-curing
Reason:
Mismatching of ingredients
Prevention method:
1. Batches must have professional technical experience
2. Materials must be distinguished and clearly marked.
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