Megapoxy PM: A Product Overview
When you’re working with expensive white or light-coloured marble, there is zero room for error. Megapoxy PM is the high-performance epoxy paste adhesive specifically formulated to deliver powerful, structural bonds without staining or discolouring sensitive natural stone. This gives you the confidence to get the job done right first time, protecting your work and your reputation from costly discolouration failures.
Beyond its specialist non-staining properties, Megapoxy PM is a job-site workhorse for general concrete repair, grouting bolts, and bonding metal, fibreglass, and precast articles. Its Nil VOC formulation, true non-sag consistency, and simple 1:1 mix ratio make it the predictable, reliable, and smart choice for professional trades.
80Mpa
Compressive Strength — cures to a permanent, stone-like solid with strength superior to concrete itself, ensuring your repairs are structural and built to last.
Core Features & Specifications
- Critically Non-Staining: Specially formulated to be free of staining or discolouration, making it the essential, safe choice for white or light-coloured marble, granite, and ceramics.
- True Non-Sag Paste: A creamy, thixotropic paste that holds its form, allowing for clean, easy application on vertical and overhead surfaces without slumping or dripping.
- Simple 1:1 Mix Ratio: Easy-to-use 1 Part A to 1 Part B by volume mix ratio streamlines preparation and ensures predictable, error-free performance on site.
- High Structural Strength: Delivers outstanding permanent bond strength, including 80Mpa compressive strength and 20Mpa tensile bond strength to steel.
- Job-Site Ready: Adheres and cures reliably even in adverse conditions, including cold (minimum 10°C) and damp environments.
The Megapoxy PM Advantage
- Protect Your High-Value Work: Eliminates the primary risk of working with expensive stone. Get a perfect, clean finish with zero callbacks for staining.
- Work Faster on Verticals: The non-sag body and 45-minute work time (at 25°C) give you time to perfectly tool and finish vertical joints or overhead repairs without rushing or re-work.
- One Product, Many Solutions: From delicate, high-finish stone installation to structural concrete repair and grouting bolts, Megapoxy PM is a versatile solution that streamlines your inventory.
- Nil VOC & Easy Handling: A creamy texture that blends easily, coupled with a Nil VOC formulation, makes it a better and safer choice for interior and on-site applications.
Adheseal tips for using Megapoxy PM
Scenario: Incorrect Mixing Ratio
Potential Outcome: The epoxy fails to cure, remains soft, or has severely compromised strength. If not fully mixed, it can also lead to discolouration, defeating its purpose.
Adheseal Best Practice: Always measure 1 Part A to 1 Part B by *volume*—do not guess. Mix thoroughly on a clean board or in a bucket until the colour is 100% uniform with no streaks.
Scenario: Bonding to Contaminated Stone
Potential Outcome: The adhesive bonds to dust, slurry, or oil, not the stone itself, leading to a weak bond that fails under load.
Adheseal Best Practice: Stone and ceramic surfaces must be completely clean, dry, and free of all dust. Wipe with a clean, dry cloth or a solvent (if appropriate) just before application for a first-time-right bond.
Applications in Practice: Trade Scenarios
For Stonemasons: Installing White Marble Vanities
The Professional's Challenge
Bonding expensive marble vanity tops and splashbacks where any adhesive bleed-through or discolouration will ruin the job and destroy profitability.
The Adheseal Solution
Use Megapoxy PM White. The non-staining formula guarantees a clean, permanent fix. The non-sag paste also allows for filling and bonding vertical joints. Success means a spotless, high-end finish and a happy client.
Best Practice Note
Apply adhesive neatly and ensure the surfaces are clean and dry. Clean any excess or smears with Megapoxy Thinners *before* the epoxy begins to cure. Once cured, it is extremely difficult to remove.
For Remedial Contractors: Overhead Concrete Repair
The Professional's Challenge
Repairing spalled concrete on the underside of a slab or beam, requiring a structural-grade filler that won't slump or fall during application.
The Adheseal Solution
Megapoxy PM (Grey) is ideal for this. The true non-sag paste can be trowelled overhead and will hold its shape, allowing you to build out the repair. Its 80Mpa strength ensures the fix is structural. Success means a single-visit permanent repair.
Best Practice Note
Substrate prep is critical. Mechanically abrade the surface to remove all loose concrete and laitance. The bond is only as good as the surface you're applying it to.
Frequently Asked Questions
Will Megapoxy PM stain my white marble or light-coloured stone?
No. Megapoxy PM is specifically formulated to be non-staining. It will not stain or discolour white or light-coloured marble, granite, or ceramics, making it the ideal, risk-free choice for high-value stone installations. This predictable performance protects your work and reputation.
What is the mix ratio and work time for Megapoxy PM?
The mix ratio is a simple and reliable 1 Part A to 1 Part B by volume. Once mixed, you have a practical work time (pot life) of 45 minutes at 25°C, giving you ample time to apply, position, and tool the product without rushing.
Can I use Megapoxy PM for vertical or overhead repairs?
Absolutely. Megapoxy PM is a true non-sag, thixotropic paste. It has a creamy texture that is easy to trowel but will hold its position firmly, making it the perfect solution for vertical surfaces and overhead repairs where slumping or dripping is not an option.
What's the best way to prepare concrete before bonding with Megapoxy PM?
For a first-time-right structural bond, the concrete must be clean, dry, and free of all laitance. The best method is mechanical abrasion such as grit blasting, scabbling, or grinding. This ensures the epoxy is bonding to the sound, structural concrete, not a weak surface layer.
Applications & Benefits
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Bonding Natural Stones (White Marble, Granite, Ceramics) | Guaranteed non-staining, non-discolouring, permanent bond. | Stonemasons, Tilers, Builders |
| Structural Concrete Repair (Floors, Stairs, Columns) | Superior-to-concrete strength (80Mpa Compressive) for a permanent fix. | Remedial Contractors, Concreters |
| Vertical & Overhead Bonding / Filling | True non-sag paste with a creamy texture holds its form without slumping. | All Trades |
| Grouting bolts & Bonding Metal to Concrete | High tensile bond strength (20Mpa to Steel) for structural anchoring. | Engineers, Builders, Fabricators |
| Bonding Fibreglass Articles | High-strength, gap-filling adhesive for manufacturing and repairs. | Manufacturers, Marine Fitters |
Applying Megapoxy PM: Enhanced Protocols & Best Practices
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Step 1: Surface Preparation
Ensure all substrates are prepared according to the Adhesion Profile. Surfaces must be sound, clean, dry, and free of all contaminants to ensure a permanent, structural bond.
Pro Tip: Do not cut corners on preparation. 99% of bond failures are due to a poorly prepared substrate. Mechanical abrasion is always the best choice for concrete and metal. -
Step 2: Measuring & Mixing
This is a critical step for achieving the product's specified strength and non-staining properties. Inaccurate mixing will lead to cure failure.
Measuring
Measure exactly 1 Part A to 1 Part B by volume. Use calibrated mixing containers to ensure accuracy.
Mixing
On a clean board or in a mixing bucket, combine the two parts. Mix thoroughly with a spatula or mechanical mixer (for larger volumes) until the paste is a 100% uniform colour with no streaks visible.
Timing: The work time (pot life) is 45 minutes at 25°C. This time will be shorter in hotter weather and longer in cold weather. Only mix what you can comfortably use within this timeframe.Pro Tip: Always scrape the sides and bottom of the mixing container multiple times during mixing to ensure all material is blended and no unactivated resin or hardener remains. -
Step 3: Application & Curing
Apply the mixed paste to the prepared substrate using a trowel or spatula.
Application
For bonding, apply to one or both surfaces and press together. For repairs or gap filling, trowel the paste into the void, ensuring no air pockets are trapped. The non-sag formula will hold on vertical and overhead surfaces.
Cleaning
Clean all tools, implements, and spills *before* the epoxy cures. Use Megapoxy Thinners for effective cleanup.
Cure Time: Allow a minimum of 24 hours at 25°C for the initial cure. Full structural properties are achieved after several days.
Limitations & Safety
Product Limitations
Professional Use Only: This product is hazardous and intended for professional industrial/trade use. It is not for DIY use.
Sensitiser: Both Part A and Part B may cause an allergic skin reaction (sensitisation). Persons already sensitised may react to very low levels. Avoid all skin contact.
Mix Ratio: The 1:1 mix ratio by volume is critical. Do not alter this ratio, as it will result in a failed cure and loss of all physical properties.
Temperature: Do not apply at substrate or ambient temperatures below 10°C.
Preparation: Do not apply to unprepared, contaminated, or unsound substrates. Bond strength is entirely dependent on substrate quality.
Safety & Handling Requirements
Personal Protective Equipment (PPE)
Always wear safety glasses with side shields (or face shield) and protective gloves (nitrile rubber recommended). Wear protective clothing to prevent skin contact. Ensure an eyewash station is immediately accessible.
Ventilation Requirements
Natural ventilation should be adequate under normal use. Avoid breathing any dust generated during prep or application. Use in a well-ventilated area.
Fire & Handling Precautions
Non-combustible material. Flash Point is >200°C. Store in a cool, dry place out of direct sunlight and away from foodstuffs.
Emergency First Aid
Eyes:
CRITICAL: Part B causes serious, irreversible eye damage (Category 1). IF IN EYES: Rinse cautiously with water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER (Australia: 13 11 26) or doctor.
Skin:
Causes skin irritation and may cause allergic sensitisation. IF ON SKIN: Immediately remove all contaminated clothing. Wash skin thoroughly with plenty of soap and water. If skin irritation or rash occurs: Get medical advice.
Inhaled:
Remove victim from exposure to fresh air. Keep at rest. Seek medical advice if effects persist.
Swallowed:
Rinse mouth with water. Do NOT induce vomiting. Give a glass of water to drink. Seek medical advice immediately.
Refer to the Safety Data Sheet (SDS) for Part A and Part B before use.
Megapoxy PM Surface Preparation Guide
Concrete
Surface Preparation
Surfaces must be sound, clean, and free from grease and oil. Remove all surface laitance for a successful bond. Mechanical abrasion (grit blasting, grinding, or scabbling) is the best method. If this is not possible, acid etching can be used, but must be thoroughly washed and dried for 24 hours. For maximum adhesion, the concrete should be surface dry.
Primer Requirements
No primer specified
No primer is specified in the technical data. Adhesion is reliant on a clean, sound, and properly prepared substrate.
Metal Surfaces (Steel)
Surface Preparation
Metals must be grit blasted to AS CK 9.4-1964 Class 3 finish for maximum adhesion. If grit blasting is not possible, mechanically abrade the surface to a clean, bright metal finish. Once abraded, flood with an industrial grade degreaser to remove all contaminants. Note: Wire brushing is not entirely satisfactory and provides minimal adhesion only.
Primer Requirements
No primer specified
No primer is specified in the technical data. Bond performance is dependent on achieving a bright, clean, abraded metal finish.
Natural Stone & Ceramics
Surface Preparation
Surfaces must be thoroughly clean, dry, and free from dust, slurry, or processing residues. Ensure the back of the stone or tile is sound and has not been contaminated. Wipe with a clean, dry cloth before application.
Primer Requirements
No primer specified
Ensure surface is clean, dry, and sound.
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