505 Damp Seal is a solvent free, low viscosity epoxy primer formulated to consolidate and seal green or wet concrete and cementitious surfaces. Its excellent surface tolerance allows it to bond even to damp or poorly prepared substrates, making it ideal for fast track or high humidity environments.
The cured primer stabilises the substrate, reduces surface dusting, and enhances adhesion of Resimac top coats. It performs reliably at temperatures as low as 10°C (50°F) and is particularly effective on new concrete or problem areas where moisture may be present.
Key Features
- Low viscosity formulation for green and damp concrete
- Tolerant of poor surface preparation and residual moisture
- Improves adhesion and performance of Resimac coating systems
- Cures at temperatures as low as 10°C (50°F)
Typical Applications
- Newly laid concrete
- Internal & external tank bases
- Structural concrete
- Damp or surface saturated areas




