How to deal with different problems during the construction process of silicon PU court surface layer

Silicon ball courts
Different problems will be encountered during the construction process, such as bubble problems, pinhole phenomena, wrinkles and cracks encountered during construction. Below, Guanaotong will provide you with these problems. Some effective solutions.
. Bubble phenomenon There are bubbles in the elastic layer.
Cause of occurrence
Silicon ball field
During the construction process, air or solvent volatilization gas is formed to cause bubbles, and the substrate is improperly treated (such as wood with high moisture content, pores are not closed or the surface of the substrate is This phenomenon is likely to occur when there is water, etc.) or improper application during construction (the paint film is too thick, etc.).
Treatment method: The surface of the substrate must be treated clean. The moisture content of the substrate should not be too high. If there is water on the surface of the substrate, wait for the water stains to dry before applying paint. If bubbles have occurred, use a spatula to remove the bubbles and re-sand and paint.
. Pinhole phenomenon There are pores similar to needle punching in the elastic layer.
Cause
Silicon court
During construction, it is caused by the collapse of air bubbles mixed in the elastic layer and other bubbles produced, and the paint film cannot be leveled before it dries. It may also be caused by the treatment of the substrate. Caused by improper construction or improper painting (paint film is too thick, etc.). During the roller coating process of the elastic layer, pinholes are also likely to occur if the coating is too thick or the roller rotates too fast.
Treatment method: After sanding, fill it with putty, and then brush it once or twice. After polishing, apply thin coats of varnish several times until the elastic layer penetrates into the pores and fills them up. For the elastic layer, pay attention to the construction method and just apply a thin layer to the problem areas.
Wrinkling phenomenon The elastic layer exhibits regular wrinkles in the form of small amplitude ripples, which can sometimes reach part or all of the film thickness.
Causes
Silicon court
During construction, the coating is too thick at one time, or the ambient temperature is high. The surface dries quickly, but the inside is not dry, so it wrinkles. When the first layer of elastic layer is not dry, it is easy to apply the second layer with improper proportion or improper dilution.
Treatment method: Use a spatula to remove the wrinkled parts, then smooth them with coarse sand and proceed with normal construction once or twice. Remember to wait for the first coat of paint to dry before applying the second coat, but it should not be applied too thickly.
Cracking phenomenon: a discontinuous appearance appears on the surface. In severe cases, the cracks can penetrate the coating, causing the paint film to be completely destroyed.
Causes
The surface layer of the silicon ball court is constructed too thickly and too little diluent is added for thick coating. The thicker the coating, the more serious the cracking will be.
Treatment method: First scrub evenly with thinner, and then apply a thin layer several times.
. Sagging phenomenon. After the topcoat is applied on the facade, it flows downward in the shape of tears
Causes: When the facade is painted, due to improper construction of the
silicone ball court
, such as The viscosity of the topcoat is too low, too much diluent is added, and the one-time application is too thick, etc., causing the wet film to move downward, forming uneven coatings with thick edges at the bottom of various shapes.
Guanaotong has been in the sports field construction industry for seventeen years, and has been involved in silicon stadium construction for eight years. It has taken over more than 100 professional sports ground projects nationwide. Guanaotong's professional sports venue construction team and excellent construction technology can provide you with a one-stop construction solution for your silicon stadium.
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