Top Flex II is an eco-friendly product and is an inorganic elastic coating waterproofing agent using room temperature curing modified acrylic elastic composite material. Top Flex II, unlike existing film waterproofing agents, does not contain volatile organic compounds, so it can be used for a long time, and no environmental hormones are detected when new residents move in after construction, so it is an eco-friendly waterproofing agent that meets the standards of the Indoor Air Quality Management Act.