ISOMAT AK-FIRE 25KG Refractory mortar for building and grouting fire bricks

ISOMATAK-FIRE is a cement-based mortar for firebricks.

• Contains refractory cement and quartz aggregates of graded granulometry.
• It is characterized by excellent resistance to high temperatures and intense temperature changes, excellent workability, high initial and final welding capacity and high resistance to moisture.

Form: cementitious cement
Shade: grey
Water requirement: 4.75 l / 25 kg bag
Apparent weight of dry mortar: 1.55 ± 0.10 kg / l
Apparent weight of liquid mortar: 1.80 ± 0.10 kg / l
Application temperature: from + 5ºC to + 35ºC
Compressive strength: Category M 25 (EN 1015-11)
Bending strength:> 6.0 N / mm2
Initial shear strength: 0.15 N / mm2 (price from table)
Fire resistance: Class A1 (EN 13501-1)
Density (dry hardened mortar): 1,700 kg / m3 (EN 1015-10)

Water absorption: 0.3 kg / m2min0.5 (EN 1015-18)
Water vapor permeability: m 15/35 (EN 1745 price from table)
Thermal conductivity: (λ10, dry) 0.75 W / mK (EN 1745, P = 50%)
Shelf life: at least 3 h
Operating temperature: up to + 1,200ºC

1. Consumption depends on the dimensions of the firebricks and the width of the joint.
2. Indicative consumption for firebricks dimensions 20x10x3 cm with joint width 1cm: about 5 kg / m

ISOMAT AK-FIRE is suitable for building and grouting all types of firebricks in structures where high temperatures develop, such as fireplaces, ovens, grills, chimneys, etc. Also ideal for repairing worn firebrick joints. It is applied indoors and outdoors.