Megapoxy MC: A Product Overview
Megapoxy MC is a two-component, 100% solids, high-build epoxy engineered for non-negotiable asset protection. It delivers a highly chemical resistant and heavy-duty maintenance coating, built to withstand the toughest industrial and commercial environments. This system cures to a heavy abrasion-resistant, hygienic, and dust-free gloss finish, making it the smart choice for protecting high-traffic factory floors, mechanical workshops, and car parks. Specifically formulated to be resistant to hydrogen sulphide, it provides proven performance in critical infrastructure like sewage treatment plants and pipes. Because it’s a Nil VOC formula, it's suitable for protecting structures in contact with foodstuffs, such as in abattoirs and beverage facilities. This is predictable performance, ensuring your work provides long-term protection and removes the risk of costly failures.
> 3 MPa
Bond Strength to Concrete (ASTM D4541). Engineered for superior adhesion that's stronger than the concrete itself, eliminating delamination risk.
Core Features & Specifications
- 100% Solids, Nil VOC Formula: A high-build, solvent-free system — safe for use in sensitive areas, including those in contact with foodstuffs, and delivers maximum protection without shrinkage.
- Extreme Chemical Resistance: Formulated to withstand a wide range of chemicals, including specific resistance to hydrogen sulphide (H2S) — provides zero-doubt protection for bunded areas, chemical storage, and sewage treatment plants.
- Superior Bond Strength: Achieves over 3 MPa bond strength to concrete (ASTM D4541) and 13 MPa to steel (ASTM D897) — creates a monolithic bond that is stronger than the substrate, ensuring no delamination or costly callbacks.
- Heavy Abrasion Resistance: Cures to a tough, gloss finish with a Shore D Hardness of 80 — built to handle heavy forklift traffic, impact, and wear in workshops and warehouses, protecting your margin by reducing maintenance.
- Dual Cure Speed Options: Available in Standard (2-hour work time) and Rapid MC2 (30-min work time) versions — gives you the flexibility to manage large areas or complete fast-turnaround repairs, getting assets back in service sooner.
The Megapoxy MC Advantage
- Protect Critical Infrastructure: Get predictable performance in the harshest conditions. Its proven H2S resistance makes it the definitive, smart choice for protecting assets in sewage and water treatment facilities.
- Deliver a Hygienic, Safe Surface: The seamless, gloss, and dust-free finish is easy to clean and maintain — ideal for food and beverage facilities, plant rooms, and abattoirs where hygiene is critical.
- Reduce Application Time & Costs: Excellent coverage (80-100m² per 20kg kit) and versatile application (roller, brush, or airless spray) streamline your workflow, protecting labour costs.
- Achieve a First-Time-Right System: Combine with Megapoxy LVS - Low Viscosity Sealer as a primer for porous surfaces to guarantee optimal adhesion and a flawless, pinhole-free finish.
Adheseal tips for using Megapoxy MC
Scenario: Applying to contaminated surfaces
Potential Outcome: Grease, oil, or laitance will block adhesion, causing delamination and catastrophic coating failure, leading to immediate, costly rework.
Adheseal Best Practice: All concrete must be free of contaminants. Mechanically abrade by grinding or grit blasting to remove laitance. Degrease with an industrial-grade degreaser. For metal, grit blast to AS CK 9.4-1964 Class 3 finish. This prep is the only way to guarantee a bond stronger than the substrate.
Scenario: Exceeding recoat windows
Potential Outcome: Applying a new coat after the 8-hour window (for standard MC at 25°C) without preparation results in poor inter-coat adhesion and potential peeling.
Adheseal Best Practice: If more than 24 hours elapses between coats, you must thoroughly abrade the entire coated surface to a uniform dull finish (e.g., 60 grit paper) to create a mechanical key. This ensures a monolithic, job-site ready system.
Applications in Practice: Trade Scenarios
For Specifiers & Asset Engineers: Protecting Concrete in Sewage Treatment
The Professional's Challenge
Need a coating for concrete channels and tanks that provides documented proof of resistance to hydrogen sulphide (H2S) and general chemical attack, while ensuring long-term structural integrity and minimal downtime.
The Adheseal Solution
Megapoxy MC is specifically engineered for this environment. Its 100% solids, high-build formula creates an impermeable barrier. For aggressive environments, a three-coat application is recommended to achieve a total cured thickness of 0.4-0.5 mm, providing maximum asset protection. Success means: Passing inspections with a compliant, durable lining that removes the risk of substrate corrosion for years.
Best Practice Note
For optimal system integrity on porous concrete, prime the prepared substrate with one coat of Megapoxy LVS - Low Viscosity Sealer to penetrate and seal the surface, preventing outgassing and ensuring a pinhole-free finish.
For Flooring Contractors: Heavy-Duty Workshop & Warehouse Floors
The Professional's Challenge
The client needs a floor that can withstand constant forklift traffic, impacts, and spills from oils or chemicals, without dusting or failing. You need a solution that protects your margin with efficient, reliable application.
The Adheseal Solution
Megapoxy MC delivers a heavy abrasion-resistant (Shore D 80) and hygienic gloss finish that is easy to clean. Apply by roller or airless spray, covering 80-100m² per 20kg kit. Use the MC2 Rapid version (30-min pot life) for fast-turnaround repairs. Success means: A satisfied client with a durable, dust-free floor and no costly callbacks for delamination.
Best Practice Note
For a non-slip finish, broadcast the appropriate aggregate (e.g., epoxy quality sand) over the first freshly applied coat, then recoat with Megapoxy MC to lock the aggregate in. This provides a durable, safe surface first-time-right.
Frequently Asked Questions
How do I create a non-slip surface with Megapoxy MC?
You can easily create a non-slip surface using Megapoxy MC. The most robust method is to broadcast an epoxy-quality aggregate (like sand or carborundum) over the first freshly applied coat. Allow it to cure, sweep off the excess, and then apply a second coat of Megapoxy MC to lock the aggregate in. For a finer texture, you can also mix a small amount of aggregate directly into the final coat.
Is Megapoxy MC suitable for sewage treatment plants?
Yes, Megapoxy MC is an excellent choice for sewage treatment applications. It is specifically engineered to be resistant to hydrogen sulphide (H2S), a common gas that causes corrosion in these environments. Its high chemical resistance and strong bond to concrete make it a job-site ready solution for protecting pipes, tanks, and channels.
How long until I can allow forklift traffic on a Megapoxy MC floor?
Megapoxy MC achieves its minimum cure for traffic in 24 hours at 25°C. However, for heavy-duty traffic like forklifts, it's best practice to allow a full 7-day cure for maximum chemical and abrasion resistance. If you need a faster return to service, use Megapoxy MC2 (Rapid), which is tack-free in 2 hours and can be recoated in 4 hours, significantly speeding up your workflow.
Applications & Benefits
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Chemical Storage Tanks and Bunds | 100% solids, high-build formula provides excellent chemical resistance for containment. | Asset Maintenance, Flooring Contractors |
| Sewage Treatment Plants and Pipes | Engineered to resist hydrogen sulphide (H2S) and corrosion. | Asset Maintenance, Remedial Contractors |
| Factory and Warehouse Floors | Heavy abrasion resistance (Shore D 80) creates a durable, dust-free surface for forklift traffic. | Flooring Contractors, Builders |
| Food & Beverage Facilities, Abattoirs | Nil VOC and provides a seamless, gloss, hygienic finish that is easy to clean. | Flooring Contractors, Painters |
| Protective Coating for Steel | Excellent bond strength (13 MPa) protects steel from corrosion and chemical attack. | Asset Maintenance, Painters |
Applying Megapoxy MC: Enhanced Protocols & Best Practices
-
Step 1: Critical Surface Preparation
Preparation is critical for performance. All substrates must be structurally sound, clean, dry, and free of all contaminants.
Concrete
Mechanically grind or blast to remove all laitance and contaminants. Degrease as required. Ensure moisture content is within acceptable limits.
Steel
Grit blast to AS CK 9.4-1964 Class 3 finish. Degrease immediately after abrasion. Do not allow to flash rust.
Timing: Allow 24 hours for any washed/etched concrete to dry fully.Pro Tip: Do not use wire brushing on steel; it provides minimal adhesion and will lead to callbacks. Mechanical abrasion to bright metal is non-negotiable. -
Step 2: Priming Porous Surfaces (If Required)
For porous concrete, applying a primer seals the surface to prevent pinholes and blistering from substrate outgassing.
Application
Apply one coat of Megapoxy LVS - Low Viscosity Sealer using a roller, brush, or spray.
Coverage
Apply at a rate of 8-10m² per litre. Thinning is not recommended.
Timing: Allow the primer to cure. You can recoat or overcoat between 8-24 hours after applying Megapoxy LVS.Pro Tip: Priming is a smart-choice investment. It guarantees a uniform, high-adhesion finish and prevents costly rework caused by outgassing. -
Step 3: Component Mixing (Set Timer)
Precise mixing is essential for the coating to cure correctly and achieve its full strength. Do not guess the time.
MC Standard (5kg & 20kg)
Add Part B to Part A. Mix for 3 mins with a low-speed drill (200rpm max). Scrape all sides and base, then mix for 2 more mins. Total 5 mins.
MC2 Rapid (5kg)
Add Part B to Part A. Mix for 2 mins (200rpm max). Scrape sides and base, then mix for 1 more min. Total 3 mins.
Timing: Standard MC has a 2-hour pot life; MC2 (Rapid) has a 30-minute pot life at 25°C. Mix only what you can apply within this time.Pro Tip: Inaccurate ratios or poor mixing will result in uncured patches, discoloration, and total system failure. Always scrape the sides and base thoroughly. -
Step 4: Application & Recoating
Apply the mixed Megapoxy MC evenly to the prepared (and primed, if applicable) surface. For aggressive environments, a three-coat application is recommended.
Application
Apply using a brush, roller, or airless spray. (Note: Squeegee is for MC2 only).
Thinning (Optional)
If required, the first coat can be thinned up to 10% with Megapoxy Thinners. Reduce to 5% for the second coat. Ensure all thinners have evaporated before recoating.
Timing: At 25°C, recoat Standard MC in 8 hours and MC2 in 4 hours. If 24 hours is exceeded, the surface MUST be abraded (e.g., 60 grit) before recoating.Pro Tip: To clean tools before the epoxy cures, use Megapoxy Thinners. Wear appropriate disposable rubber gloves and PPE as per the SDS.
Limitations & Safety
Product Limitations
Minimum application temperature is 10°C. Curing will be significantly delayed at lower temperatures.
Do not apply to contaminated or unprepared surfaces. Adhesion failure will occur. This includes laitance, grease, oil, or existing coatings.
Strictly observe recoat windows. If more than 24 hours elapses, the surface must be mechanically abraded to ensure inter-coat adhesion.
Mixing ratios and times are critical. Inaccurate ratios or poor mixing will lead to lower physical properties and potential cure failure.
Part B (Hardener) is Corrosive (Class 8). Part A is a Skin/Eye Irritant (Class 9). This system is for professional trade use only.
Safety & Handling Requirements
Personal Protective Equipment
Wear safety glasses, chemical-resistant gloves (e.g., nitrile rubber), and protective clothing. If ventilation is inadequate or spraying, wear an organic vapour/particulate respirator (AS/NZS 1715/1716).
Ventilation Requirements
Use in a well-ventilated area. Natural ventilation may be adequate for roller/brush, but local exhaust ventilation is required for confined spaces or poor airflow.
Fire & Handling Precautions
Store in a cool, dry place out of direct sunlight. Store Part B locked up. Avoid all skin and eye contact. Wash hands thoroughly after handling. Part B (Hardener) Flash Point: 69°C.
Emergency First Aid
Eyes:
Rinse cautiously with water for several minutes. Remove contact lenses. Continue rinsing for at least 15 minutes. Seek immediate medical attention.
Skin:
Remove contaminated clothing immediately. Wash with plenty of soap and water. If skin irritation, rash, or burns occur, get medical advice/attention.
Inhaled:
Remove victim from exposure. Keep at rest in a comfortable position. Seek medical advice if effects persist.
Swallowed:
Rinse mouth. Do NOT induce vomiting. Give a glass of water. Immediately call Poisons Centre or Doctor.
Seek medical attention immediately in all cases of serious exposure.
Megapoxy MC Application Guide
Concrete Substrates
Surface Preparation
Concrete must be clean and free from grease, oil, and surface laitance. Mechanical abrasion (grit blasting, grinding, or scabbling) is the recommended method. If not possible, acid etch with 1:1 hydrochloric acid/water, allow to react for 10 minutes, then thoroughly wash and scrub. Allow to dry for 24 hours. Surface must be dry for maximum adhesion.
Primer Requirements
Primer recommended for optimal adhesion
On particularly porous concrete surfaces, priming is highly recommended to seal the substrate and prevent outgassing.
Megapoxy LVS - Low Viscosity SealerMetal / Steel Substrates
Surface Preparation
Metals must be grit blasted to an AS CK 9.4-1964 Class 3 finish for best results. If grit blasting is not possible, mechanically abrade the surface to a clean, bright metal finish. Immediately degrease the abraded surface by flooding with an industrial-grade degreaser. Wire brushing is not satisfactory and provides minimal adhesion.
Primer Requirements
No primer typically required
Apply Megapoxy MC directly to the clean, prepared metal surface to ensure a high-strength bond (13 MPa per ASTM D897).
- Choosing a selection results in a full page refresh.