Trade quote
Tell us what you need and we'll come back with a quote.
Share your quantity and project details for a tailored quote.
When industrial operations require high-alumina ceramic tiles to protect steel or concrete from extreme wear and continuous temperatures up to 120°C, a standard adhesive won't last. Megapoxy 84 provides the specialised epoxy paste solution. It ensures those critical wear linings remain securely bonded, even under sustained heat, extending equipment lifespan and maintaining operational efficiency.
Megapoxy 84 is specifically formulated as a two-component epoxy paste adhesive for environments where high-alumina ceramic tile linings are essential. Its existence is driven by the need for a robust, high-temperature bond for these wear-resistant tiles onto steel or concrete substrates. This includes critical applications like locking eccentric bushings in crushing machinery, where conventional adhesives would fail under thermal and mechanical stress.
Maximum Operating Temperature: 120°C continuous service. This is not an intermittent peak; this is the continuous service temperature Megapoxy 84 reliably withstands. It ensures tile linings remain fixed in industrial applications subject to sustained heat, preventing costly delamination and premature wear in hot process environments.
Compressive Strength: 120 MPa. This significant strength ensures the bond between the high-alumina ceramic tile and its substrate can resist the intense compressive forces and abrasive wear typical in heavy industrial and mining applications.
Flexural Strength: 55 MPa. Beyond sheer compression, the 55 MPa flexural strength confirms the adhesive's ability to handle bending and shearing stresses, which is critical for tile integrity on surfaces that might experience minor deflections or vibrations during operation.
Work Time: 30 minutes at 25°C. This controlled work time provides an adequate window for mixing, applying, and accurately positioning ceramic tiles over larger areas, particularly in a hot environment, before the product begins to set.
Megapoxy 84 is designed for straightforward, two-component mixing and application. For optimal performance, combine the entire contents of Part B into Part A and mix thoroughly for a minimum of 3 minutes, ensuring all material from the sides and bottom of the container is incorporated. A precise 4 parts A to 1 part B ratio ensures the final cure achieves maximum strength. Apply the mixed paste to the prepared steel or concrete surface using a notched trowel, then firmly press the high alumina ceramic tiles into the adhesive bed, ensuring full contact. Cleanup of tools is best achieved immediately using Megapoxy Thinners and warm soapy water.
Megapoxy 84 is a highly specialised epoxy paste, distinct from Megapoxy's general-purpose structural epoxies like Megapoxy P1 or even the high-performance Megapoxy PM. While those products offer excellent structural strength for concrete, steel, and other substrates, Megapoxy 84 is engineered specifically for one critical task: reliably bonding high-alumina ceramic tiles to steel or concrete in continuous service up to 120°C. Its formulation is optimised for this niche, where consistent performance under sustained heat and abrasive wear is paramount, distinguishing it from adhesives not designed for high-temperature tile lining applications.
Megapoxy 84 is suitable for continuous exposure to temperatures up to 120°C after a full 72-hour cure. This thermal stability prevents adhesive degradation in demanding industrial settings, ensuring wear lining integrity.
No, steel surfaces must be cleaned to a "white metal" finish by grinding or grit blasting. Proper surface preparation is critical for achieving the specified bond strength and preventing premature lining failure.
The adhesive will set after approximately 4 hours at 25°C. For full toughness and to withstand continuous service at its maximum operating temperature of 120°C, allow a minimum of 72 hours at 25°C.
Megapoxy 84 is formulated specifically for high alumina ceramic tile linings in industrial, high-temperature, or high-wear environments. Its properties are overkill for standard tiling and it requires rigorous surface preparation not typical for general applications.
| Application | Key benefit | Primary trades |
|---|---|---|
| Fixing high alumina ceramic tiles to steel in industrial plant | Withstands continuous operating temperatures up to 120°C, preventing tile delamination in high-heat environments. | Industrial maintenance, fabricators, wear lining specialists |
| Bonding high alumina ceramic tiles to concrete for wear protection | Forms a strong, durable bond (120 MPa compressive strength) on prepared concrete, extending the service life of high-wear surfaces. | Civil contractors, mining operations, industrial flooring specialists |
| Locking eccentric bushings in Symons® Cone Crushers and other crushing machinery | Provides a rigid, high-strength bond that maintains component alignment under heavy operational loads and vibration. | Mining maintenance, heavy machinery repair, industrial mechanics |
A first-time-right result is impossible without correct prep. This product is engineered for adhesion to professionally prepared, clean, and dry substrates.
Clean all steel to a 'white metal' finish. Use grinding or grit blasting to remove all rust, mill scale, and contaminants. The surface must be 100% clean and dry.
Scabble or grit blast concrete to remove the weak laitance layer. You must expose the solid, clean, and firmly held aggregate. Ensure all dust is removed.
Ensure the bonding face of the ceramic tile is clean and grease free. Wipe with Megapoxy Thinners if necessary and allow to dry.
Megapoxy 84 is a two-component system. Both parts must be thoroughly combined in the correct ratio to achieve the specified properties.
It is highly advisable to mix the whole 2.5L kit at one time to avoid ratio errors. Add the entire contents of Part B (Blue Liquid) slowly into Part A (White Paste).
Using a putty knife or spatula, mix thoroughly for a minimum of 3 minutes. Continuously scrape the sides and bottom of the mixing container to ensure all material is incorporated. The final mix should be a uniform Pale Blue.
Apply the mixed adhesive and bed the tiles, ensuring full contact for a void-free bond.
Apply the mixed Megapoxy 84 to the prepared substrate at a rate of approximately 1.25 litres per m². Spread evenly using a notched trowel.
Place the high alumina ceramic tiles onto the wet adhesive bed. Press firmly to ensure full, even contact of the tile surface and collapse the trowel ridges.
Clean excess material and tools using Megapoxy Thinners and warm soapy water for a tidy finish. The product sets in ~4 hours at 25°C.
Danger: Megapoxy 84 Part B is corrosive and can cause severe skin burns and eye damage. Part A causes skin irritation and may cause an allergic skin reaction. Both parts are classified as Schedule 5 Poisons (Caution).
Wear safety shoes, nitrile rubber gloves suitable for intermittent contact, and safety glasses. A suitable respirator should be worn if there is a risk of inhaling dust, vapours, mist, or aerosols. Ensure all PPE is appropriate for the task and risk assessment.
Natural ventilation is typically adequate under normal use conditions. For enclosed spaces or where vapours are likely, ensure increased ventilation or local exhaust is provided.
Store in a cool, dry, well-ventilated area, out of direct sunlight and away from foodstuffs, incompatible materials (e.g., oxidising agents), and sources of heat/ignition. Keep containers upright and closed when not in use. Store Part B locked up. Dispose of material and containers in accordance with local, regional, national, and international regulations.
Achieving a reliable, high-strength bond with Megapoxy 84 depends on meticulous surface preparation. The correct prep ensures optimal adhesion and prevents bond failure under service conditions.
Surface prep: Clean to a "white metal" finish. This typically requires grinding or grit blasting to remove all mill scale, rust, coatings, and contaminants. The prepared surface must be clean and grease-free.
Primer: Not required for this application.
Surface prep: Scabble back or grit blast to expose firmly held aggregate. Remove all laitance, loose material, curing compounds, and contaminants. The surface must be clean and grease-free.
Primer: Not required for this application.
Surface prep: Ensure the tile surfaces to be bonded are clean and grease-free. Abrasion is generally not required for the tile surface itself.
Primer: Not required.
| Property | Value |
|---|---|
| Mixing Ratio (Part A to Part B) | 4:1 (by volume) |
| Work Time | 30 minutes at 25°C |
| Minimum Application Temperature | 10°C |
| Maximum Operating Temperature | 120°C (continuous exposure) |
| Initial Set Time | 4 hours at 25°C |
| Toughness Development | After 48 hours |
| Full Cure for Service | 72 hours at 25°C |
| Compressive Strength | 120 MPa |
| Flexural Strength | 55 MPa |
| Hardness Shore D (ASTM D2240-00) | 70 minimum |
| Thermal Coefficient of Expansion | 0.00006 k-1 |
| Thermal Conductivity | 0.4 W/(m*K) |
| Specific Gravity Part A (at 25°C) | 1.05 - 1.15 |
| Specific Gravity Part B (at 25°C) | 0.94 - 0.96 |
| Mixed Specific Gravity (at 25°C) | 1.05 |
| Colour Part A | White |
| Colour Part B | Blue |
| Appearance Mixed | Pale Blue |
| Consistency Part A | Thixotropic Gel/Paste |
| Consistency Part B | Liquid |
| Total VOC | Nil |
Here are some common examples on where Megapoxy 84 used by our customers.
