For internal sealing of concrete tanks, waterproofing walls and floors, and toughening timber surfaces, Megapoxy LVS is a two-component, clear liquid epoxy formulated to penetrate porous substrates. With a low mixed viscosity of 90cps, it sinks into the pores of concrete, timber, bricks, mortar, and natural stone to seal, harden, and waterproof from within.
Megapoxy LVS functions by capillary action, penetrating deep into the substrate before curing. Once cured, it creates a high-strength barrier with a compressive strength of 80Mpa and a concrete bond strength exceeding 3Mpa, making the treated surface mechanically stronger than the concrete itself. It seals internal masonry walls, consolidates soft or porous brickwork, and hardens timber surfaces against wear. It also serves as the compatible primer coat for Megapoxy floor coatings, establishing a secure structural bond to the dry substrate.
Concrete: Must be free from grease and oil. Remove surface laitance by scabbling, grit blasting, or grinding. If mechanical preparation is impossible, acid etch using a 1:1 mix of hydrochloric acid and water at a rate of 0.5 litres per square metre. Allow to react for 10 minutes, wash thoroughly, scrub with a stiff broom, and allow to dry for a minimum of 24 hours.
Metal surfaces: Grit blast to AS CK 9.4 - 1964 Class 3 finish, or mechanically abrade to a clean, bright metal surface, then flood with an industrial grade degreaser.
Timber: Remove all damaged, loose, or rotted timber back to a clean, dust-free surface.
Coated surfaces: Remove paint from concrete using flame-cleaning or a scutching tool, followed by diamond grinding or scabbling. Remove paint and galvanizing from metal using a high-quality paint stripper followed by grit blasting or grinding.
Thoroughly mix Part A and Part B at a ratio of 2 Parts A to 1 Part B by volume. Apply using a brush or roller.
No, Megapoxy LVS requires thoroughly dry substrates for proper adhesion and cure. Applying it to damp surfaces will compromise performance and bond strength.
The minimum application temperature for Megapoxy LVS is 10°C. Application below this temperature will affect cure time and product performance.
Megapoxy LVS penetrates porous substrates, sealing, hardening, and waterproofing them from within. This provides a stronger foundation for subsequent coatings and prevents surface degradation.
It is not recommended to apply Megapoxy LVS over existing coatings. All previous coatings must be removed to achieve proper bond strength to the bare substrate.
| Application | Key benefit | Primary trades |
|---|---|---|
| Priming for Megapoxy Floor Coatings | Ensures over 3MPa bond strength to concrete, preventing delamination of topcoats. | Floor applicators, concrete repairers |
| Sealing and hardening porous concrete floors | Penetrates deep into concrete (90cps mixed viscosity) to reduce dusting and improve surface integrity. | Concrete repairers, builders |
| Internal sealing of concrete tanks, bricks, and mortar | Provides waterproofing and chemical resistance, extending the service life of structures. | Waterproofing contractors, masons |
| Toughening timber surfaces | Enhances the durability and resistance of timber against wear and degradation. | Timber specialists, builders |
| Protection of structural concrete | Imparts high compressive strength (80MPa) and flexural strength (40MPa) to treated concrete. | Civil contractors, structural engineers |
This is a Class 3 Flammable Liquid. Extinguish all ignition sources (pilot lights, heaters, sparks) and ensure high ventilation. Part B is Class 8 Corrosive; full PPE is mandatory.
Substrate must be clean, thoroughly dry, and free of contaminants. Remove all laitance via mechanical grinding or grit blasting.
Sand to clean, sound wood. Remove all dust. Must be completely dry.
Measure accurately and mix thoroughly in a well-ventilated area, away from ignition sources.
Add 1 part Part B to 2 parts Part A by volume. Mix thoroughly by hand or with a low-speed mixer until the liquid is uniform and streak-free.
Apply the mixed LVS to the prepared substrate using a brush or roller.
Apply a minimum of 1 coat. Apply thinly and do not allow to pool. Wipe up any excess.
Apply a minimum of 2 coats, allowing the first coat to become tack-free (approx. 4 hours at 25°C) before applying the next.
Signal Word: Danger
Wear safety shoes, gloves (nitrile rubber recommended for intermittent contact), safety glasses, and an organic vapour/particulate respirator (meeting AS/NZS 1715 and AS/NZS 1716) if an inhalation risk exists. Ensure PPE is suitable for the nature of the work and identified hazards.
Ensure ventilation is adequate to maintain air concentrations below exposure standards. Use only in well-ventilated areas, with local exhaust ventilation, or while wearing an appropriate respirator. Vapour is heavier than air; prevent its concentration in hollows or sumps. Do not enter confined spaces where vapour may have collected.
Store in a cool, dry, well-ventilated place, out of direct sunlight, away from foodstuffs, incompatible materials, and sources of heat/ignition. Keep containers upright and closed when not in use. Store locked up. Dispose of contents and container in accordance with local, regional, national, and international regulations.
Proper substrate preparation is critical for Megapoxy LVS to achieve its documented performance, ensuring optimal penetration, adhesion, and durability.
Surface prep: Ensure concrete is free from grease and oil, using an industrial heavy-duty degreaser if necessary. Remove surface laitance by mechanical abrasion such as scabbling, grit blasting, or grinding. If mechanical methods are not possible, acid etching can be performed using equal parts concentrated hydrochloric acid and water at 0.5 litres per square meter, reacting for 10 minutes, then thoroughly washing and scrubbing to remove loose sand. Concrete must be thoroughly dry for 24 hours prior to application to ensure maximum adhesion.
Primer: Not required for this product's role as a penetrating sealer.
Surface prep: Grit blast to AS CK 9.4 - 1964 Class 3 finish. If grit blasting is not possible, mechanically abrade the surface to a clean, bright metal finish. Degrease the abraded surface with an industrial-grade degreaser. Wire brushing is generally insufficient for optimal adhesion.
Primer: Not required for this product's role as a penetrating sealer.
Surface prep: Remove any damaged, loose, or rotted timber to expose a clean, dust-free surface.
Primer: Not required for this product's role as a penetrating sealer.
Surface prep: All existing coatings must be removed prior to applying Megapoxy LVS. Bonding to coated surfaces will result in significantly inferior bond strengths compared to application directly to a prepared, bare substrate. For painted concrete, use flame-cleaning or scutching, then diamond grinding or scabbling. For painted metal, use good quality paint stripper followed by grit blasting or grinding to bright metal.
Primer: Not applicable, as this product is itself a primer/sealer and requires bare substrates.
| Property | Value |
|---|---|
| Mixing Ratio By Volume | 2 Part A to 1 Part B |
| Work Time at 25°C | 30 minutes |
| Minimum Cure Time at 15°C | 48 hours |
| Minimum Cure Time at 25°C | 24 hours |
| Minimum Cure Time at 35°C | 12 hours |
| Thin Film Cure at 25°C | 4 hours |
| Minimum Application Temperature | 10°C |
| Viscosity Part A at 25°C | 100 - 140 cps |
| Viscosity Part B at 25°C | 10 - 20 cps |
| Mixed Viscosity at 25°C | 90 cps |
| S.G. Part A at 25°C | 1.00 – 1.10 |
| S.G. Part B at 25°C | 0.91 – 0.94 |
| Mixed S.G. at 25°C | 1.01 |
| Colour Part A | Clear |
| Colour Part B | Clear |
| Compressive Strength (ASTM D695) | 80 MPa |
| Bond Strength Concrete (ASTM D4541) | >3 MPa |
| Tensile Bond Strength Steel (ASTM D897) | 20 MPa |
| Modulus of Elasticity (ASTM D695) | 11 GPa |
| Flexural Strength (ASTM D790) | 40 MPa |
| Tensile Strength (ASTM D638) | 40 MPa |
| Tensile Shear Strength (ASTM D1002) | 13 MPa |
| Coverage Concrete Wood Float Finish | 75 m² per 15 litre kit |
| Coverage Concrete Steel Float Finish | 150 m² per 15 litre kit |
| Coverage Bricks | 75 m² per 15 litre kit |
| Coverage Timber | 75 m² per 15 litre kit |
Here are some common examples on where Megapoxy LVS used by our customers.
