Tremco EUCO Diamond Hard Clear Satin Concrete Densifier & Sealer 20L

Diamond Hard Concrete Densifier & Hybrid Concrete Sealer is a penetrating concrete treatment designed to increase the surface density, durability, and abrasion resistance of concrete floors. Diamond Hard uses a unique blend of silicate and siliconate polymers that penetrate into concrete surfaces and chemically react to create a harder, more durable concrete surface.

Unlike traditional concrete coatings, Diamond Hard does not form a film or membrane over the surface. Instead, it penetrates into the concrete to help reduce water penetration, minimise dusting, and improve the long-term performance of concrete floors while maintaining the existing slip rating.

Where Can Diamond Hard Be Used?

Diamond Hard concrete densifier and sealer is commonly used for commercial and industrial concrete floors, including:

• Warehouse floors
• Manufacturing plant floors
• Distribution centres
• Car parks
• Commercial floors
• Retail floors

It is suitable for concrete surfaces where improved durability, dust-proofing, easier cleaning, and reduced surface porosity are required.

Key Benefits of Diamond Hard

• Penetrating concrete densifier and hybrid sealer
• Increases concrete surface density
• Improves abrasion resistance and durability
• Helps reduce concrete dusting
• Reduces water penetration into concrete surfaces
• Helps minimise tyre marks
• Makes concrete floors easier to clean
• No film-forming coating or membrane
• Does not reduce concrete slip rating
• Minimal equipment required for installation

Coverage

Approximate usage rate:

• 0.2mm wet application thickness
• Approximately 5m²/L on concrete

Drying Time & Return to Traffic

• Drying time at 25°C and 50% RH: 4–6 hours
• Return to traffic: 24 hours

Drying and return-to-service times may vary depending on site conditions, temperature, humidity, and substrate conditions.

Surface Preparation

1. Concrete shall be water-cured and attain a 20 MPa minimum compressive strength.
2. Concrete shall be free of any laitance which may inhibit sufficient adhesion. Removal of laitance can be achieved through a variety of physical abrasion methods, such as:
   • Shot blasting (preferred method)
   • Sandblasting
   • Grinding
3. Concrete surface shall be properly cleaned so that the surface to receive the Diamond Hard is free of:
   • Mould
   • Paint
   • Sealers
   • Coatings
   • Curing agents
   • Loose particles
   • Other contamination or foreign matter that may interfere with adhesion
4. Spalled areas shall be cleaned free of loose contaminants prior to repair. Because jobsite conditions vary, it is recommended that you contact your local Tremco Representative. Depending on the substrate and depth of the spalled areas, a TREMcrete repair product will be recommended as the best method of repair.
5. In the event of exposed reinforcing steel, it is recommended that the structural engineer of record be contacted for investigation and for the best repair method.
6. Surfaces shall be made free of defects, as they will telegraph and show through the Diamond Hard.

7. All drains shall be cleaned and operative. Drains shall be recessed lower than the deck surface. The surface shall be sloped to drain to provide positive drainage (1:100) as per AS4654.2.

   Drains should be detailed as instructed below:

   • Cut a 6mm wide x 12mm deep keyway into the concrete surface at any point where the coating will have an exposed terminating edge.
   • This includes areas where the coating will end in an open area subject to traffic, such as:
     • End of ramps
     • Around drains
     • Alongside expansion joints
8. If the project is a restoration deck, old sealant and membrane material shall be removed. The joint interface will require thorough:
   • Wire brushing
   • Grinding
   • Sandblasting
   • Solvent washing and/or primer

Method of Application

1. Substrate temperature during application must be between 10°C and 38°C.
   • At temperatures below 10°C, the reaction and “gelling” process of Diamond Hard is significantly slower. The concrete will need to remain wet with Diamond Hard for a significantly longer period of time.
   • In hot or windy conditions, the reaction may take less than the normal 30–60 minute period.
   • Concrete should be pre-dampened in hot weather. Apply Diamond Hard when all ponding water has evaporated.
2. Apply Diamond Hard to the concrete surface by:
   • Low-pressure sprayer, or
   • Pouring directly onto the surface and distributing evenly by broom or squeegee
3. Using soft bristle brooms or brushes on an auto-scrubber, work the Diamond Hard around the treated area and into the concrete surface.
4. The concrete must be kept wet with Diamond Hard for at least 30 minutes.
   • If necessary, add additional Diamond Hard to maintain a wet surface.
5. Continue the application process until the entire floor has been treated.
6. When finished, completely remove all excess Diamond Hard from the surface.
   • If excess Diamond Hard is allowed to dry on the concrete surface, a white residue will form that can only be removed by mechanical means such as:
     • Grinding
     • Sanding

Always refer to the latest Diamond Hard Product Datasheet and Safety Data Sheet before application.

Colour Accuracy Disclaimer: We have taken care to display the most accurate visuals of our products. However, we are not responsible for the colour accuracy of the device you are viewing our swatches on. These variations arise due to different computer monitors and devices (make, model and technology, as well as resolution, contrast and brightness control settings) in much the same way a scan will differ from an original image and a colour photocopy. Furthermore, coatings can exhibit variation in perceived colour depending on gloss level and application method. If you require a very specific colour match, please make your selection via actual swatches and colour boards available at our showroom.

Product Disclaimer: Ensure you read all product, technical and safety data sheets prior to application as liability falls on the applicator. All products must be applied in accordance with manufacturer’s recommended method.