6920 fireplace mortar

6920 fireplace mortar

Tile adhesive
A heat resistant cement based mortar used for building masonry in fireplaces, pizza ovens and chimneys, as well as walling in fire tubes and plastering firewalls.
High heat resistance
Refractory mortar
For mounting refractory stone
Ready for heat exposure after 4-7 days

Detailed description


6920 fireplace mortar is a cement based mortar used for building masonry in fireplaces, pizza ovens and chimneys, as well as walling in fire tubes and plastering firewalls.


Product description

Cement based heat resistant mortar.


Application areas

Building fireplaces, pizza ovens and chimneys, fixing fire tubes and plastering of firewalls.


Types of substrate

6920 fireplace mortar can be used on substrates of concrete, lightweight concrete, tile, masonry and plastered masonry.


Pre-treatment of substrate

Ensure the substrate is stable and free of dust, grease and loose particles. Absorbent surfaces are moistened with water.



6 kg 6920 fireplace mortar is mixed with 0,95 l of clean water.

Stir for 2-3 minutes. Small amounts can be mixed with a brick trowel, large amounts must be mixed with a slow-moving mixing paddle.

Apply with a brick trowel or steel trowel.

After application, the mortar must be protected from drying too rapidly by moistening with water if necessary. After 4-7 days, the mortar can be exposed to heat.


Working environment

The product contains cement. Working environment rules for cement must be followed.



6 kg plastic strengthened paper bag.


Storage and transportation

Transport and store dry. Product will maintain technical specifications minimum 12 months from production date in unopened packing. Can be used after that, however technical properties may change. For example, the setting time may be prolonged.

Areas of Application

Indoor Areas
Indoor Floor
Indoor Wall
Pizza oven
Fire tube
Outdoor Areas
Outdoor Floor
Outdoor Wall
Lightweight concrete
Lightweight concrete block


Working Time and Temperature

Working temperature:


Working Time:

Before exposure to heat: 4-7 days

Dimensions and packaging

4,5 kg bag


6920 fireplace mortar DS
Technical Data Sheet
6920 fireplace mortar SDS
Safety Data Sheet
6820 micro decor brochure

Related products

Mira 4180 primer (front)-01
4180 primer
A primer for porous substrates before the application of a levelling compound, hydroisolation, tile adhesive etc

Packaging Details

ImageProductEANCodeX (mm)Y (mm)Z (mm)Neto Weight (kg)Bruto Weight (kg)Best Before (Days)
mira 6920 tulekindel ahjusegu, 4,5kg570191469200250901069204.54.5365
6920 fireplace mortar