Maxcrete 622 | Self Levelling Mortar

The Maxcrete 622 Self Levelling Mortar is a pumpable, one-part self-levelling and self-smoothing mortar that contains high-quality Portland cement, modified polymers, selected fillers, and flow agents. Here’s a breakdown of its description, features, limitations, technical data, and application guidelines:

Description

Composition: High-quality Portland cement, modified polymers, fillers, flow agents.
Preparation: Requires only the addition of water to form a free-flowing mortar for a smooth, level, and hard surface.

Features

✓ Suitable for various underlayments: vinyl, tile, carpet, epoxy, and wood flooring.
✓ Requires only the addition of water.
✓ Highly fluid, suitable for pump or manual pouring.
✓ Excellent flow-ability, self-levelling, and smoothing properties.
✓ Trowel-free application.
✓ Exhibits excellent compressive, flexural, and bond strength.

Limitations

 Not suitable for substrates with high rising dampness or polished concrete.
 Inappropriate for outdoor application or as an unprotected wearing surface.
 Specifies minimum thickness for wood flooring.
 Prohibits the addition of cement, lime, or gypsum.

Technical Data

Packaging: 25 kg
Water Ratio: 20% (±1)
Density: Dry – 1.28 kg/ltr, Wet – 2.20 kg/ltr
Coverage Yield: 13.5 liters (0.0135 m³)
Working Time @ 30°C: 20 minutes
Flow Rate: 280 mm
Setting Time @ 21°C: Initial – 5 hours, Final – 6 hours
Bond Strength: Priming with Maxcrete Latex – 0.5 N/mm² (initial), 1.0 N/mm² (final)
Flexural Strength (ASTM C-348): 8 N/mm²
Compressive Strength (ASTM C-109): 1 day – 10 N/mm², 7 days – 25 N/mm², 28 days – 35 N/mm²

Mixing & Application Guidelines

Mixing: Specific instructions for mixing ratios and procedures.
Preparation: Surface preparation details for concrete and screed substrates.
Application: Recommendations for continuous placement, use of spike roller, thickness variations, and curing times.

Storage & Shelf Life

Recommends dry, moisture-free storage conditions, sealed packaging, and a shelf life of 12 months in original packaging.

The Maxcrete 622 Self Levelling Mortar’s description emphasizes its self-levelling properties, suitability for various flooring types, specific limitations, technical specifications, and comprehensive guidelines for mixing, preparation, application, and storage.