Vapor Lock™ 1L First Day is an advanced colloidal silica finishing aid, sealer, and densifier engineered to address the unique challenges of modern 1L cement concrete. Applied during placement and finishing, it improves workability and finishing performance without adding water or increasing the water-to-cement ratio. By enhancing the concrete’s hydration process, Vapor Lock™ 1L First Day creates a denser, stronger, and more durable surface with improved abrasion resistance, reduced permeability, and long-term moisture protection. It is the ideal alternative to applying water during finishing, helping produce higher-quality concrete while maintaining a breathable, natural-looking surface.
Primary Applications
- New concrete slabs experiencing difficult finishing conditions
- High-performance concrete with low bleed water
- Concrete containing silica fume, fly ash, or high cement content
- Industrial floors and warehouse slabs
- Decorative and colored concrete
- Concrete receiving dry-shake hardeners
- Interior and exterior slab-on-grade applications
- Concrete requiring improved abrasion and moisture resistance
- Concrete requiring reduced dusting and improved surface density
- Pre-treatment for additional Vapor Lock™ systems
Secondary Applications
- Existing concrete requiring densification and surface conditioning
- Concrete surfaces requiring reduced dusting and improved durability
| Application Type | Coverage Rate (US) | Coverage Rate (Metric) | Notes |
| Finishing Aid | 300 – 500 ft²/gal | 7.36- 12.3 m²/L | Applied at the same time as bull floating concrete |
| 2 Coat Performance Concrete | 200 – 300 ft²/gal | 6 – 30 m²/L | First Coat with bull float Second Coat as part of final finishing |
