Preparing concrete and steel for repair demands more than just a clean surface. It requires a bond that holds, a barrier against moisture, and protection from ongoing corrosion. EverKrete Primer delivers this foundation, ensuring the EverKrete concrete repair system performs as designed. It's the multi-functional first step that secures the repair, preventing delamination and pinholes from the start.
EverKrete Primer was engineered as the critical first step in the EverKrete concrete repair system. It addresses common site challenges by preparing both concrete and steel substrates. This single-component modified polymer promotes superior adhesion, creates an effective vapour barrier, and halts corrosion on tightly adhered rust. By eliminating pinholes caused by substrate outgassing, it ensures a dense, well-bonded repair, preventing premature delamination and future repair failures.
EverKrete Primer's performance is built on clear technical specifications:
Using EverKrete Primer is straightforward. It’s a single-component product, eliminating the need for on-site mixing. After thorough surface preparation, which may include dry diamond grinding for a sound, porous profile, it is brushed or rolled onto the substrate. The goal is a thin, even coating worked into the surface, free from puddles or ridges. The primer becomes tacky within 1-2 hours, indicating readiness for the EverKrete repair mortar application, which must follow on the same day. For wet clean-up, use Acetone; cured material requires mechanical removal.
EverKrete Primer excels in civil construction and flooring projects requiring robust concrete repair. It is particularly suited for preparing concrete substrates that will be membrane-covered or tiled, ensuring maximum adhesion for the EverKrete 102 repair mortar. This includes repairing spalls on concrete slabs, preparing subfloors before levelling or coating, and addressing masonry and render repairs where a strong, moisture-resistant bond is crucial for the long-term integrity of the repair system.
EverKrete Primer is the essential first step in the EverKrete concrete repair system. Applied directly to prepared concrete or steel, it forms the critical bond layer before the application of EverKrete 102 structural repair mortar. This sequence ensures the repair mortar adheres completely, preventing delamination and providing a durable, integrated repair solution for the entire system.
No, EverKrete Primer must only be applied to dry substrates. Application on damp or wet surfaces can lead to poor adhesion and delamination of the repair system, compromising its integrity.
The primer works as a penetrating bonding agent that helps eliminate pinholes caused by outgassing from the substrate. This ensures a smoother, more uniform finish when EverKrete Mortar is applied.
EverKrete Primer is tack-free in 1 to 2 hours at 25°C and 60% RH. EverKrete Mortar should be applied while the primer is still tacky and clean, ideally on the same day as priming, to ensure optimal bond strength.
Yes, EverKrete Primer may be used over tightly adhered rust on steel surfaces to halt the advancement of corrosion. Ensure any loose rust is removed by blast or mechanical means before priming.
| Application | Key benefit | Primary trades |
|---|---|---|
| Priming for EverKrete concrete repair mortar | Ensures excellent adhesion and prevents delamination of the repair system, critical for long-term durability. | Concrete repairers, civil contractors |
| Vapour barrier for concrete substrates | Limits moisture vapour transmission (0.032 perms per ASTM E 96-80), protecting subsequent coatings and finishes from moisture-related failures. | Waterproofers, flooring contractors |
| Eliminating pinholes caused by outgassing | Penetrates the substrate to seal pores, stopping air release that can create defects in applied EverKrete mortars. | Concrete repairers, restoration specialists |
| Corrosion protection for rebar and steel | Halts the advancement of corrosion on tightly adhered rust, extending the life of reinforced concrete structures. | Concrete repairers, structural repairers |
| Preparing various building materials | Provides a strong, penetrating bond to concrete, screed, masonry, and pre-cast concrete, ensuring system compatibility and performance. | General builders, tilers, waterproofers |
DANGER: This material is hazardous. It is a Flammable Liquid, Suspected of Causing Cancer, May Cause Allergy or Asthma Symptoms or Breathing Difficulties if Inhaled, and May Cause Damage to Organs Through Prolonged or Repeated Exposure.
Wear rubber boots, overalls, chemical-resistant gloves, and a respirator (organic vapour/particulate respirator meeting AS/NZS 1715 and AS/NZS 1716). Use eye/face protection, such as safety glasses with side shields or chemical goggles.
Use only outdoors or in a well-ventilated area. Ensure adequate ventilation to maintain air concentrations below exposure standards. Local exhaust ventilation may be required in enclosed spaces.
Store in original sealed containers in an approved flammable liquid storage area. Keep away from incompatible materials, heat, sparks, open flames, and hot surfaces. Store between 5°C and 35°C, ideally 15-25°C. Reseal opened drums with nitrogen if possible to prevent cloudiness or skinning due to moisture. Dispose of contents/container in accordance with local, regional, and national regulations.
Proper surface preparation is crucial for EverKrete Primer to achieve its intended bond and vapour barrier performance. Failure to follow these steps risks poor adhesion and subsequent system failures.
Surface prep: Concrete must be structurally sound, dry, clean, and free of dust, oils, grease, and curing compounds. Allow new concrete to cure for at least 28 days. Diamond grinding is recommended to provide a roughened, open-porous surface. Vacuum thoroughly to remove all loose material and dust. Do not use solvents or acid etching.
Primer: Required. EverKrete Primer acts as a penetrating bond agent and vapour barrier for concrete surfaces.
Surface prep: Ensure screeds are structurally sound, dry, clean, and free of contaminants. Allow new screeds to cure for at least 4 days prior to application. If mechanical preparation is needed, use dry diamond grinding and vacuum thoroughly.
Primer: Required. Enhances adhesion and helps control outgassing.
Surface prep: Remove all loose rust by blast or mechanical means to ensure tightly adhered rust remains. The surface must be clean and dry.
Primer: Required. EverKrete Primer aids in halting the advancement of corrosion on prepared steel.
Surface prep: Ensure surfaces are structurally sound, dry, clean, and free of contaminants. Allow new masonry or render to cure for at least 4 days. Remove loose or friable material.
Primer: Required. Promotes adhesion for subsequent EverKrete applications.
| Property | Value |
|---|---|
| Type of Product | Single-part Polyurethane Primer |
| Curing System | Exothermic / Moisture Triggered |
| Appearance | Clear Amber Colour |
| Consistency | Liquid |
| Density (Specific Gravity) | 1.1 g/cm³ |
| Brookfield Viscosity at 25°C (cps) | 30 – 60 |
| Application Temperature | 5°C – 35°C |
| Application Humidity | Below 85% RH |
| Storage Temperature | 5°C – 35°C |
| Tack Free (to touch) @25°C and 60RH | 1 – 2 Hours |
| Consumption | 5 – 8 m²/litre |
| Solids Content | 30 – 34% |
| Shelf Life | 12 Months |
| Clean Up | Xylene |
| Flash Point | 23-60°C |
| Standard MVT (ASTM E 96-80) | 0.032 perms |
Here are some common examples on where EverKrete Primer used by our customers.
