Barely effective. Bubbles are mostly caused by substrate moisture or incorrect material mixing ratio. Simple surface repair cannot solve the root cause, and blistering will recur later. Source treatment is required.

No. To achieve stable anti-static performance, a complete system including primer, conductive intermediate coat and anti-static topcoat is required. Without the conductive layer, it is hard to meet resistance specifications.

Different rules apply for different scenarios. At normal temperature, pedestrian access is available after 48 hours, and full curing to reach design strength takes 7 days. Heavy forklift traffic is recommended after 7 days.

Random mixing is not recommended. They differ in resin system and curing mechanism. Cross-system overcoating may lead to insufficient interlayer adhesion. Sample testing is mandatory before formal construction.

It depends. If the old floor suffers from peeling, hollowing or heavy oil contamination, recoating merely with topcoat will peel off soon. Thin-coat renovation is viable only when the substrate is stable, oil-free and fully ground.