APF VaporSolve® Primer – Water-Based Epoxy for High Moisture Concrete Product Overview APF VaporSolve® Primer is a specially formulated, water-based epoxy primer designed to deliver superior adhesion to concrete with high moisture vapor emission. When paired with APF VaporSolve LP, it completes the APF VaporSolve Ultra System, reducing moisture vapor emissions to acceptable levels while maintaining bond integrity under continuous moisture and alkaline conditions. This primer is formulated specifically for concrete treated with silicate-based curing compounds or densifiers, where shot-blasting alone cannot fully remove metasilicate residues. Its low viscosity promotes excellent substrate wetting and penetration for reliable adhesion, even over damp concrete. Key Features Moisture Mitigation: Designed for high moisture content concrete substrates. Bisphenol F Resin Technology: Provides outstanding resistance to water and alkalinity. Compatible With Silicate-Treated Concrete: Formulated for surfaces treated with sodium or potassium silicates. Damp Surface Application: Adheres to damp concrete surfaces. Wide Application Temperature Range: Can be applied between 40°F and 100°F (4°C to 38°C). Recommended Uses Concrete floors with high moisture vapor emissions Substrates treated with silicate-based curing agents Pre-installation moisture remediation prior to finish coats Installation Notes Apply APF VaporSolve® Primer to properly prepared concrete using a roller or squeegee, following the manufacturer’s coverage and cure rate guidelines. Ensure the surface temperature is within the recommended application range. Follow with VaporSolve LP as the finish coat to complete the moisture mitigation system.