Megapoxy 132

For floor protection in food and beverage production facilities, pharmaceutical industries, hospital kitchens, and high-traffic forklift ramps, Megapoxy 132 provides a high-strength, solvent-free epoxy barrier. This low-viscosity system is formulated to resist regular industrial cleaning and abrasion, and it carries AS 4020:2018 approval for contact with potable water.

Clean environment compliance

Megapoxy 132 is free from any suspected or potential carcinogens or mutagens, ensuring it will not taint foodstuffs. It conforms to the Department of Primary Industries requirements for coatings and floorings used in export-registered food processing establishments, such as abattoirs. With a low volatile organic compound content of 7 g/l, it is suitable for application in enclosed commercial spaces including bakeries, cafes, and bathrooms.

Application and modification

The low-viscosity liquid has a mixed viscosity of 620cps at 25°C, allowing application by brush, roller, squeegee, or airless spray. To meet specific slip-resistance and thickness requirements, the system can be modified on-site:

• It accepts fine aggregates broadcast between coats to produce a non-slip surface for wet areas and vehicle driveways.
• It can be mixed with fine aggregates to produce high-strength screed floors.

Numbers that matter

• 120MPa ultimate compressive strength (ASTM C579): High load-bearing capacity to withstand heavy forklift traffic and machinery loads without crushing.
• >3MPa concrete bond strength (ASTM D4541): Strong adhesion to prepared concrete, ensuring the coating does not delaminate under shear forces.
• 30-minute work time (at 25°C): The application window to spread, level, or broadcast aggregate before the mixed epoxy begins to set.
• 24-hour minimum cure (at 25°C): The drying window before the floor can be put back into service, dropping to 12 hours at 35°C and extending to 48 hours at 15°C.
• 0.000 gram/hr m² water vapour transmission (ASTM E96/E96M): Complete resistance to water vapour passage, protecting the underlying substrate.

Limitations

• Mixing precision: Strict adherence to the 2:1 by volume mixing ratio is required. Inaccuracies or incomplete mixing will lower physical properties, prevent satisfactory curing, or cause discolouration with age.
• Minimum application temperature: Do not apply when substrate or ambient temperatures are below 10°C.
• Coated surfaces: All existing coatings must be removed prior to application. Bonding directly to existing paint or coatings reduces bond strength compared to a freshly prepared substrate.
• Metal preparation limits: Wire brushing is not satisfactory for metal substrates and provides minimal adhesion. Metals must be grit blasted or mechanically abraded to bright metal.

Surface preparation

For successful adhesion, substrates must be prepared according to their material class:

• Concrete: Must be free from grease and oil. Remove surface laitance by scabbling, grit blasting, or grinding. If mechanical prep is not possible, acid etch with a 1:1 hydrochloric acid and water mix at 0.5 litres per square metre, react for 10 minutes, scrub, rinse, and allow to dry for 24 hours until surface dry.
• Metal surfaces: Grit blast to AS 1627.2.2002, or mechanically abrade to a clean, bright finish. Degrease immediately after abrasion by flooding with an industrial grade degreaser.
• Coated concrete: Flame-clean or use a scutching tool to remove paint, then complete preparation with diamond grinding or scabbling.
• Coated metals: Strip paint or galvanising using a high-quality paint stripper, followed by grit blasting or grinding to a bright metal finish.

Clean-up

To keep mixing implements, squeegees, and application tools clean before the epoxy cures, use Megapoxy Thinners. Wear disposable rubber gloves during application and clean-up to maintain proper industrial hygiene.