Water-Based Epoxy Primer | Two-Component BioCoat SWaE250 is a bio-based, water-based, two-component epoxy primer engineered to provide strong adhesion and reliable surface preparation across a wide range of substrates. Designed for ease of use and professional performance, it delivers excellent bonding strength on concrete, ceramic, wood, and metal, making it a versatile primer for multi-surface coating systems. With low VOCs and no odor, BioCoat SWaE250 supports improved indoor air quality and is well suited for occupied or compliance-driven environments. Its fast dry time and water-reducible formulation help streamline application while maintaining the durability expected from industrial epoxy primers.