If there are bubble issues after a silicone PU court is completed, it's usually assumed that the foundation is at fault. However, this is not necessarily true. Generally speaking, as long as the foundation's hardness is achieved, without powdering or disintegration, and can withstand the expected duration after being laid, there should be no foundation issues. Of course, if the foundation surface itself contains oil, problems may arise, which could be attributed to the inattentiveness of the construction crew.

In response to the bubbling issue with the silicone PU court materials, the following solutions are recommended: 1. Cut off all the bubbled surface layers; 2. Repair with topcoat; 3. If the problem is severe, scrape off the surface layer and redo it.