Description
POLASEAL PENETRANT HARDENER
Deep-Penetrating Masonry Hardener for Strength, Durability & Surface Consolidation
POLASEAL PENETRANT HARDENER is a premium, water-based polymeric silicate solution engineered to restore, strengthen, and densify masonry substrates. Designed for direct application to concrete, mortar, block, and other masonry materials, it penetrates deeply into porous surfaces to chemically reinforce and improve structural integrity.
Once applied, POLASEAL PENETRANT HARDENER reacts within the substrate through a dual-action process. First, soluble silicates react with free lime to form stable calcium silicate structures. Second, remaining silicates fuse within the pore structure, further increasing hardness and cohesion. This process enhances durability, surface strength, and long-term resistance to wear and environmental exposure.
Suitable for both new and existing masonry, POLASEAL PENETRANT HARDENER provides measurable performance improvements that vary based on substrate condition, porosity, and composition. In many cases, it delivers significant strengthening and consolidation benefits.
Key Benefits
- Deep Penetrating Strengthening Action
Chemically reinforces masonry by penetrating and bonding within the substrate - Improved Durability
Enhances long-term resistance to wear, weathering, and surface deterioration - Chemical Reaction with Lime
Forms stable calcium silicate structures that strengthen masonry internally - Surface Densification
Reduces porosity and improves overall substrate integrity - UV & Environmental Resistance
Provides long-term stability under UV exposure and environmental conditions - VOC Compliant / Low Odor
Water-based formulation with safe, low-odor application - Compatible with Masonry Systems
Works effectively with concrete, brick, mortar, and mineral-based substrates - Strength Enhancement
Improves compressive strength in many masonry applications - Long-Term Stability
Creates permanent internal reinforcement without surface film buildup
Recommended Substrates
Suitable for application over
- Concrete
- Stucco
- Brick and masonry
- Mortar and block
- Mineral composites
- Porous stone
- Other cementitious and approved masonry surfaces
Coverage
Approximately 80–150 sq ft per gallon
(Coverage may vary depending on substrate porosity and condition.)
Container Sizes
1 gallon, 5 gallon
Color
Transparent
Sealer Type
Aqueous Resin / Polymeric Silicate Solution
POLASEAL PENETRANT HARDENER Application Guidelines
Surface Preparation
The substrate must be clean, dry, and free of loose particles, oils, or any coatings or contaminants that could interfere with penetration.
Application
Open a new container of POLASEAL PENETRANT HARDENER and stir thoroughly for at least one minute to ensure a uniform mixture.
Apply using a brush, roller, or spray equipment. Use sufficient material to fully saturate the surface and promote proper penetration.
Allow a minimum of 24 hours for drying and initial curing before proceeding with additional work.
POLASEAL PENETRANT HARDENER is intended for use prior to repair treatments such as patching, parging, plastering, painting, repointing, or waterproofing. It does not provide waterproofing and will not inhibit the bonding or penetration of subsequent repair materials. Instead, it strengthens and consolidates the substrate, improving the performance of repair coatings.
Spray Application
For spray applications, use HVLP (high-volume, low-pressure) equipment.
Recommended Penetration Depth
Approximately 1 inch, depending on substrate porosity.
Clean-Up
Clean tools and equipment promptly after use with water.
Limitations
- Protect product from freezing.
- Do not apply to frozen surfaces.
- Do not apply unless temperatures can be maintained above 40°F for at least 24 hours.
- Protect the application from precipitation for a minimum of 12 hours.
- Shelf life is 24–36 months when stored in tightly sealed containers.
A mild white residue may appear on some substrates. This is not efflorescence and does not affect product performance or substrate integrity. It results from a reaction between carbon dioxide in the air and alkaline components in the product, forming a small amount of alkali carbonate. This residue can be easily removed by brushing or washing.
Safety Information
Read the product label and Safety Data Sheet (SDS) prior to use for important health and safety information.
Keep out of reach of children and pets.
For additional information, contact the Andek Technical Department.
POLASEAL PENETRANT HARDENER Technical Data
| VOC | 0 gms/liter |
| pH | Approx 11 |
| Density | Approx. 9.7 lbs/gallon |
| Solvent System | Aqueous |
| Solids Content | 10% (B.W.); 10% (B.V.) |