Tile adhesives and natural stone laying

Products

Multimortar

ARDEX AR 300

Cement base
Low tension
Waterproof and weatherproof
Easy processing
Can be felted and smoothed

Images and Videos

Area of Application
Area of Application ARDEX AR 300

Indoor and outdoor. Walls and floors.

Bonding mineral building boards, plasterboards, rigid foam insulation boards with mortar lamination, etc.

Levelling, filling and plastering wall and floor areas made of

Concrete

Masonry (aerated concrete only indoors, thin layer)

Plaster of mortar groups P II and III

Cement screed

in layer thicknesses of 2–30 mm for receiving tile and slab coverings.

Filling holes, recesses, slots and breakouts. Bonding flat blocks made of aerated concrete and sand-lime brick in areas not subject to structural loads, such as bathtub and washbasin walls, shower partitions, etc.

Bonding of earthenware and stoneware tiles with fast initial adhesion and walkability.

Technical data

Technical data ARDEX AR 300

Mixing ratio approx.

Component A	Component B
6 – 6.5 l water	25 kg powder
1 Part water	3 RT powder

Material requirement approx.

Material requirements	Toothing (mm)	Condition
1.20 kg/m²		Per mm order thickness
2.50 kg/m²	6 x 6 x 6
3.40 kg/m²	8 x 8 x 8

Bulk density approx.

1,30 kg/l

Fresh weight approx.

1,50 kg/l

Processing time approx.

45 – 60 Minute(s)

Insertion time (EN 1346) approx.

20 Minutes

Correction time approx.

5 – 15 Minutes

Can be walked on after approx.

2 Hour(s)

Attachment and laying work after approx.

2 Hour(s)

Application Ambient conditions

+20°C

Bending tensile strength approx.

Time	Bending tensile strength approx.
After 1 day	1 N/mm²
After 7 days	2 N/mm²
After 28 days	4 N/mm²

Compressive strength approx.

Time	Compressive strength of approx.
After 1 day	3 N/mm²
After 7 days	12 N/mm²
After 28 days	15 N/mm²

Suitable for underfloor heating

Yes

PH value approx.

Labelling according to GHS/CLP

See relevant safety data sheet

Labelling according to ADR

See relevant safety data sheet

EMICODE

EC 1 = very low emissions

Packaging

25 kg net bag

Storage

Can be stored in dry rooms for approx. 12 months in the original sealed container.

Downloads
Links and Downloads

Technical Data Sheet
Safety Data Sheet
Declaration of Performance
EC 1 Plus Licence

Product details

Coverage & Packaging

ART.-BEZ.	Coverage	Item Number	EAN	Packaging
ARDEX AR 300 Multi-Purpose Mortar - 25 kg	paper bag	4694	9006445046949	40 bags/pallet

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Calculator for ARDEX AR 300

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The calculator below will tell you how large an area a unit of the selected grout will cover, based on the dimensions that you supply. Simply enter the required figures in the boxes below and view the results in the results box. All tile and joint dimensions are rounded up to the nearest number (no decimal points).
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ARDEX AR 300

Area of Application ARDEX AR 300

Technical data ARDEX AR 300

Links and Downloads

Coverage & Packaging

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