4400 multicoat

4400 multicoat

Waterproofing paste
Highly flexible water vapour and waterproofing paste with good crack bridging abilities for use in wet rooms like bathrooms and washrooms
Good adhesion
Does not contain water vapour barrier reducing fiber
Single component paste
High coverage
Good crack bridging ability

Detailed description


Use 4400 multicoat as waterproofing membrane for all floor and wall substrates. Use 4400 multicoat to bed sealband, safecoat strips or seal manchet and watertighten wall/floor junctions, wall joints and joints between boards or panels and around pipe penetrations.

4400 multicoat is a ready-mixed polymer based membrane which is easy to apply and distribute on surface.

4400 multicoat is supplied in 2 kg, 6 kg and 15 kg buckets.


Product description

Highly elastic, polymer based waterproofing membrane. Ready to use - do NOT dilute. Easy to distribute on surface


Application areas

Use 4400 multicoat as waterproofing membrane on wall and floor surfaces, at wall/floor junctions, corners, joints between boards and panels, and pipe penetrations. Do NOT apply in swimming pools etc. with water column pressure.


Type of substrate

Waterproofing membrane can be used on substrate of concrete, lightweight concrete, waterproof screed, brick, render, gypsum/wooden based boards and gypsum blocks. Waterproofing membrane can be used on newly cast concrete. For other substrates - contact mira for further instructions.


Pre-treatment of substrate

Ensure substrate has carrying capacity, is stable, coherent, cleaned for dust, grease and cement laitance. The substrate shall be dry. Absorbent substrate shall be primed with 4180 primer.



4400 multicoat is usually not stirred. 4400 multicoat is thixotropic and loses its consistency by stirring. If it is necessary to stir mixture it must be done with gentle movements and mixture must then rest until normal consistency is achieved before applying. With vigorous stirring you risk making air bubbles in mixture which may cause fine holes in finished membrane



Bed seal manchet, or safecoat strips in 4400 multicoat and apply 4400 multicoat to all surfaces in an even layer by brush, roll or trowel. When first layer is surface dry (after 1-2 hours) apply next layer diagonally on to the first layer. If safecoat mat is used you must apply 4400 multicoat gradually when placing the mat. Care must be taken that sufficent quantity of multicoat is applied in order to saturate and cover completely. (Safecoat mat ensures uniform thickness of membrane and rapid hardening). Recommended for wood flooring.

Further surface finish can be applied after 6-12 hours at 18°C.

Follow applying instructions of wet room constructions with ceramic tiles.


Working Environment

Product is not subject to REACH-registration. Reference to safety data sheet.


Storage and transportation

Transport and store frostfree and cool. At temperatures above 20°C, risk of shin formation increases. Product will maintain technical specifications minimum 12 months from production date in unopened packing. Can be used hereafter technical properties may, however, change; e.g. setting time may be extended.


Areas of Application

Indoor Areas
Indoor Floor
Indoor Wall
Wet Room
Dry room
Lightweight concrete
Lightweight concrete block
Gypsum board
Plastered masonry
Wooden board


Average: min 1 kg /m²
Working Time and Temperature

Working temperature:

2nd layer application: 1-2 h
Tile application: 6-12 h

Dimensions and packaging

2 kg bucket
6 kg bucket
15 kg bucket


4400 multicoat DS
Technical Data Sheet
4400 multicoat DoP
Declaration of Performance
4400 multicoat EC1
EC1 Licence
4400 multicoat SDS
Safety Data Sheet
ETA 090156
ETA Certificate
ETA 120008
ETA Certificate
ETA 150868
ETA Certificate
4400 multicoat VTT
VTT Certificate
4400 multicoat cert
Efflorescence manual

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Packaging Details

ImageProductEANCodeX (mm)Y (mm)Z (mm)Neto Weight (kg)Bruto Weight (kg)Best Before (Days)
mira 4400 multicoat, 6 kg5701914440061504400620015031066.3365
mira 4400 multicoat, 15 kg570191444011550440022104002401515.7365
mira 4400 multicoat, 2 kg5701914440023504400015015015022.075365
4400 multicoat