Velosit PR 303 3.5 Gal.

VELOSIT Flooring & Moisture Control Systems VELOSIT PR 303 Moisture Vapor Emission Control Primer VELOSIT PR 303 is a universal epoxy moisture primer designed for challenging substrates with high moisture content or excessive water vapor emissions. Engineered for flooring systems, coatings, and moisture-sensitive applications, it delivers strong adhesion and reliable moisture control performance. Epoxy moisture primer • Vapor emission control • Resin flooring primer • Moisture barrier • Part A + B system Product Overview VELOSIT PR 303 is a professional-grade moisture vapor emission control primer suitable for many substrates and demanding flooring environments. It is designed to improve substrate performance, reduce moisture-related failures, and provide a stable base for coatings, adhesives, and resin systems. Typical Applications Resin Flooring Systems Standard primer for epoxy and resin flooring installations requiring strong substrate bonding. Moisture Barrier Helps protect sensitive flooring materials and adhesives from excessive moisture vapor emissions. Polyurea Coatings Suitable as a primer for Polyurea coatings and joint materials. Asphalt Primer Can be used as a primer for asphalt applications with solvent addition. Scratch Coat Production Designed for production of scratch coats and cove mortars in flooring systems. Critical Substrates Engineered for difficult substrates with high moisture content and vapor transmission concerns. Packaging & Components Product Type Epoxy Moisture Primer Packaging Size 3.5 Gallon Kit (25 kg / 55 lb.) Component A 21.7 kg (47.7 lb.) Component B 3.3 kg (7.3 lb.) System Type Part A + B Recommended Uses Commercial Flooring Industrial Flooring Systems Moisture-Sensitive Adhesives Epoxy & Resin Coatings Polyurea Systems Concrete Substrate Preparation 📎 Product Resources 📄 Download TDS 📄 Installation Guide 📄 Safety Data Sheet Reliable Moisture Control for Demanding Flooring Systems VELOSIT PR 303 helps protect flooring systems from moisture-related failures while providing strong adhesion and professional-grade substrate preparation for modern construction and renovation projects.