Part A of the Planiseal VS system is a resin component that, when mixed with Part B, a hardener, forms a strong, moisture-resistant layer on concrete substrates. The two components work together to provide a seamless, fast-drying barrier that adheres securely to concrete, offering long-lasting protection against moisture vapor. This quick-setting formula reduces installation time, making it an excellent choice for fast-paced projects that require a reliable, moisture-control solution before applying floor finishes.