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Product Details

ARDEX A 440 (ARDEX A45 FEIN)

High-Strength Fill and Leveling Mortar

  • Surface smoothing and top coating from zero thickness
  • Ideal for repairing, filling, and smoothing concrete subfloors
  • Fast drying and curing
  • Easy and comfortable to work with
EMICODE EC1 PLUS
ARDURAPID

ARDEX A 440: High-Strength, Fast-Drying Fill and Leveling Mortar

ARDEX A 440 is a versatile, high-strength mortar for filling, repairing, and leveling surfaces. Ideal for indoor use on floors and walls, it offers quick drying and curing times. Ready for further work in just 60 minutes, it can be used for fine smoothing tasks, stair repairs, and correcting surface heights. Suitable for use with wheelchairs and underfloor heating systems, ARDEX A 440 ensures durable and efficient repairs.

(Formerly known as ARDEX A 45 FEIN)

Usage Areas

For indoor use on floors and walls.

Especially used in high-strength filling, repair, and smoothing applications, such as:

  • Repairing and leveling stair steps and landings
  • Filling, leveling, or repairing voids and holes in concrete, screed, walls, and plaster
  • Correcting different heights
  • Fine smoothing and finishing tasks

ARDEX A 440 is a versatile and easy-to-apply leveling mortar. Surface smoothing and correction can be done within just 10-15 minutes after lightly wetting the surface.

Product Content

A gray-colored powder product containing synthetic dispersion additives and specially selected fillers.

Packaging

25 kg kraft bag

Shelf Life and Storage

Can be stored for approximately 12 months in its original unopened packaging in dry and cool conditions.

Mixing Ratio

Approximately 6.50 – 7.50 liters of water for 25 kg of powder

Dry Powder Density

Approximately 1.3 kg/l

Wet Mortar Density

Approximately 1.9 kg/l

Material Requirement

Approximately 1.25 kg powder/m²-mm

Working Time*

Approximately 15 minutes

Walkable Time*

Approximately 60 minutes

Time Before Further Work

Approximately 60 minutes

Recoating Time*

  • 60 minutes for 0-10 mm thickness
  • 90 minutes for 10-20 mm thickness
  • 180 minutes for 20-50 mm thickness

**Values calculated in laboratory conditions at +20°C temperature and 65% relative humidity. Environmental and weather conditions may alter these values. Higher temperatures and lower relative humidity shorten these times, while lower temperatures and higher relative humidity extend them.

Compressive Strength

Approximately 35 N/mm² after 28 days

Flexural Strength

Approximately 6.0 N/mm² after 28 days

Suitable for Wheelchair Use

Suitable (according to EN 12529)

Suitable for Underfloor Heating

Suitable

EMICODE

EC 1PLUS – Very low emission

GHS/CLP Classification

GHS05, Corrosive

GGVSEV/ADR Classification

None

IMPORTANT NOTE

This Frequently Asked Questions (FAQ) section is prepared for general information purposes and does not constitute a definitive guide. For the most accurate and up-to-date information about repair, levelling, smoothing and filling mortars, especially ARDEX A 440, please refer to the product technical data sheets. For detailed information about product features, usage conditions, and application methods, we recommend consulting the ARDEX Turkey technical team. Before any application, obtaining expert advice on surface preparation and product selection will increase the success of the application.

How can I quickly fill, repair, and level surfaces indoors?

ARDEX A 440 is a versatile, high-strength mortar designed for filling, repairing, and leveling indoor surfaces on floors and walls. It is ready for further work in just 60 minutes.

What are common applications for ARDEX A 440?

ARDEX A 440 is used for repairing and leveling stair steps and landings, filling voids and holes in concrete and plaster, correcting surface heights, and fine smoothing and finishing tasks.

How do I mix and apply ARDEX A 440?

Mix 25 kg of ARDEX A 440 powder with approximately 6.50 – 7.50 liters of water. The working time is about 15 minutes, and the mortar can be walked on in approximately 60 minutes.

Is ARDEX A 440 suitable for wheelchair and underfloor heating systems?

Yes, ARDEX A 440 is suitable for use with wheelchairs and underfloor heating systems, ensuring durable and efficient repairs.

What is the shelf life of ARDEX A 440?

ARDEX A 440 can be stored for approximately 12 months in its original unopened packaging in dry and cool conditions.

Do you have any questions about this product?
You can ask your questions about this product by filling out our contact form.

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