Megapoxy PM Epoxy Paste Adhesive

Megapoxy P1 is a world-leading epoxy paste adhesive formulated with DGEBA epoxy resin and a carbonate-free filler, providing a robust and easy-to-use solution for a multitude of bonding and repair tasks. This two-component adhesive features a simple 1:1 mixing ratio by volume and offers a generous work time of 60 minutes at 25°C, allowing ample time for application. Once cured, Megapoxy P1 exhibits exceptional strength, including a compressive strength of 80 MPa and a tensile strength of 45 MPa, making it superior to concrete in these properties. Notably, Megapoxy P1 is volatile organic compounds free (Nil VOC), contributing to a healthier working environment. It also complies with AS/NZS 4020:2018 “Testing of Products For Use In Contact with Drinking Water”, making it ideal for repairs of structures in contact with potable water. Furthermore, Megapoxy P1 is resistant to hydrogen sulphide, a common issue in sewage treatment plants and pipes, ensuring long-term durability in such demanding environments.

Primer Information: While Megapoxy P1 generally exhibits excellent adhesion to properly prepared surfaces, specific primers may be beneficial in certain situations to enhance bond strength or improve adhesion to particular substrates. For example, on some very smooth metal surfaces, a light abrasion followed by degreasing is usually sufficient. For highly porous concrete, ensuring the surface is sound and free from laitance is crucial, and a concrete primer might be considered in very demanding applications. Always refer to the surface preparation guidelines for optimal results.

Cure Time: The cure time for Megapoxy P1 varies depending on the ambient temperature. At 15°C, a minimum cure time of 48 hours is required, reducing to 24 hours at 25°C and further to 12 hours at 35°C. Full cure strength is typically achieved in 4 days at 25°C. These cure times are important for project planning, especially considering the diverse climates across Australia. For instance, projects in cooler regions might need to account for longer curing times, while warmer climates will see faster results.

Coverage Rate: The coverage rate for Megapoxy P1 will depend on the application thickness and the surface area being covered. As a gap-filling adhesive, it is typically applied in layers of varying thickness depending on the gap. For example, when grouting bolts, the volume of the void will determine the amount of adhesive needed. For concrete protection, a minimum 3mm layer is recommended to provide protection to reinforcing steel equivalent to approximately 50mm of concrete cover.

Application Temperature Range: The minimum application temperature for Megapoxy P1 is 10°C. It is crucial to ensure the ambient and substrate temperatures are at or above this level during application to achieve proper curing and adhesion. This is particularly important to consider during colder months in southern Australia. The maximum operating temperature for the cured adhesive is 80°C, which is suitable for a wide range of applications but should be considered for projects involving high heat exposure.

Chemical Properties: Megapoxy P1 is based on DGEBA epoxy resin and a carbonate-free filler, resulting in a high-strength, chemically resistant adhesive. Its nil VOC formulation makes it safer to use and environmentally friendly. The product is resistant to hydrogen sulphide, which is particularly beneficial in sewage treatment environments, preventing degradation and ensuring the longevity of repairs and bonds.

Key Features of Megapoxy P1 Epoxy Paste Adhesive

• Nil VOC Content: Contributes to a healthier working environment and meets stringent environmental regulations, making it ideal for indoor applications and projects with a focus on sustainability.
• Complies with AS/NZS 4020:2018: Suitable for use in contact with drinking water, making it the perfect choice for repairing water tanks, pipes, and other potable water infrastructure projects across Australia.
• Resistant to Hydrogen Sulphide: Ensures long-term performance and durability in sewage treatment plants, pipes, and related infrastructure where exposure to this corrosive gas is common.
• Simple 1:1 Mixing Ratio: Easy to mix equal parts of Part A and Part B by volume, reducing the risk of mixing errors and ensuring consistent performance.
• No-Sag Formulation: Creamy texture that blends easily and will not sag on vertical or overhead surfaces, making application easier and more precise for builders, engineers, and repair professionals.
• Adheres and Cures Under Adverse Conditions: Can be applied and will cure even in cold and damp environments, providing a reliable solution for projects with challenging site conditions.
• High Strength Permanent Bonds: Develops excellent tensile (45 MPa) and compressive (80 MPa) strengths, superior to concrete, ensuring strong and long-lasting adhesion for structural and repair applications.
• Excellent Chemical Resistance: Provides resistance to a range of chemicals, enhancing its durability and suitability for various industrial and demanding applications.

Why Choose Megapoxy P1 Epoxy Paste Adhesive:

• Peace of Mind for Potable Water Applications: The AS/NZS 4020:2018 compliance ensures the product is safe for use in contact with drinking water, crucial for plumbers and civil engineers working on water infrastructure.
• Durable Repairs in Harsh Environments: Resistance to hydrogen sulphide ensures longevity in sewage treatment facilities, reducing the need for frequent repairs and saving maintenance costs for facility managers.
• Strong and Reliable Bonds for Structural Integrity: High tensile and compressive strengths provide the confidence needed for load-bearing applications in construction and engineering projects for builders and engineers.
• Improved Safety and Environmental Responsibility: The nil VOC formulation contributes to a healthier working environment for applicators and aligns with green building practices for architects and project managers.
• Versatile for a Wide Range of Bonding and Repair Needs: Suitable for various materials and applications, reducing the need for multiple specialised adhesives on site, saving time and costs for builders and contractors.
• Easy to Use with Minimal Waste: The simple 1:1 mixing ratio and 60-minute work time make application straightforward, minimising errors and material wastage for all trades.

When to Choose Megapoxy P1 Epoxy Paste Adhesive versus Alternatives:

• Choose Megapoxy P1 over standard epoxy adhesives when: You require certification for contact with potable water (AS/NZS 4020:2018) or need resistance to hydrogen sulphide, such as in water treatment or sewage infrastructure projects.
• Consider other options when: You need a very rapid curing adhesive for time-sensitive repairs at temperatures below 10°C, or if the application requires extreme flexibility that a paste epoxy might not offer. In such cases, a fast-setting epoxy or a flexible polyurethane adhesive might be more suitable.

Trade-Specific Applications for Megapoxy P1 Epoxy Paste Adhesive:

Application Information

• Required Tools: Mixing containers, mixing sticks or spatulas, trowel or applicator for spreading, personal protective equipment (gloves, safety glasses). Australian brands like Trojan or Stanley offer suitable hand tools.
• Trade-Specific Tips:
  • Builders: Ensure accurate 1:1 mixing ratio for optimal strength and cure. Thoroughly mix Part A and Part B until a uniform dark grey colour is achieved.
  • Plumbers: When working on potable water systems, ensure all surfaces are thoroughly cleaned to prevent contamination before applying Megapoxy P1.
  • Civil Construction Professionals: For large applications, consider using mechanical mixing methods to ensure uniformity. Follow recommended cure times based on ambient temperature.
  • Stone and Masonry Professionals: For bonding natural stone, ensure the adhesive does not stain the stone. Test on an inconspicuous area first if unsure.
• Common Issues and Solutions:
  • Insufficient Curing: Ensure accurate mixing ratio and sufficient cure time based on the ambient temperature. Low temperatures will significantly extend cure times.
  • Poor Adhesion: Proper surface preparation is crucial. Remove all grease, oil, dust, and laitance from concrete. Abrade and degrease metal surfaces.
  • Uneven Mixing: Thoroughly mix Part A and Part B until a uniform colour is achieved. Poor mixing will result in reduced strength and potential for uncured areas.

Storage and Shelf Life

• Storage Requirements: Store Megapoxy P1 in a cool, dry place, away from direct sunlight and extreme temperatures, ideally between 15°C and 25°C. Ensure containers are tightly closed when not in use. These conditions are generally suitable for most storage environments across Australia.
• Shelf Life Information: The shelf life of Megapoxy P1 is typically around 12-24 months from the date of manufacture when stored correctly. Refer to the product packaging for the specific batch's expiry date. Avoid using product past its shelf life as it may not cure properly.
• Temperature Considerations: Avoid storing Part A and Part B at very low temperatures as this can cause crystallisation in some epoxy resins. If crystallisation occurs, gently warm the Part A container (e.g., in a warm water bath) and stir until the product is clear again before mixing with Part B.

Certifications and Compliance

• AS/NZS 4020:2018: Complies with the Australian and New Zealand Standard for “Testing of Products For Use In Contact with Drinking Water”, ensuring its safety for use in potable water applications. This is a critical certification for plumbers, civil engineers, and anyone working on water infrastructure projects in Australia.
• VOC Free: Contains no volatile organic compounds, contributing to better air quality and a safer working environment, aligning with green building initiatives and health and safety regulations in Australia.
• [Consideration for other relevant Australian Standards or certifications based on specific applications, if available.]