Primefire

Classification Type G M30

Refractory mortar ready for the assembly of chimneys, grills, fireplaces and ovens

Packaging

24 kg box (16 bags x 1.5 kg)

Color

Gray

Description

General purpose masonry mortar, Type G M30, for laying ceramic bricks (especially
solid), indoors and outdoors. This mortar has refractory properties (stable behaviour in the presence of heat).

It is not considered a mortar for insulating purposes.

High temperatures

Masonry laying

EN998-1:2016

Properties


Masonry mortar with workability and fresh consistency which, due to its refractory properties, allows the construction of works subject to heat.


Composition


Dry mortar composed of special cements (normal-setting aluminous cement with considerable initial strength after 24 hours), refractory aggregates and specific additives.


Support


Cementitious plaster, ceramic brick and refractory ceramic brick


Application instructions



  • Mix in a proportion of 25 kg of powder to 4.5 kg of clean water, manually or with a slow electric mixer, until you obtain a consistent, homogeneous mass without lumps.
  • The ceramic material must be wet and then applied damp without a film of water.
  • Apply to the surface with full and even distribution.
  • Press and adjust the ceramic pieces.
  • The recommended layer thickness is 5 to 15 mm.
  • The maximum placement/adjustment time is 15 minutes.
  • Check the cleanliness of the surface of the parts to be fitted.
  • Scrape and clean joints before the mortar hardens.
  • Avoid adding product and/or water to the already mixed mortar, particularly when it reaches the hardening process.

Declaration of performance Technical sheet Technical sheet

Technical Data

Resting time before starting application :

5 minutes

Adjustability time :

15 minutes

Occasional pedestrian passability :

48 hours

Commissioning time :

24 hours (48 hours in cases of low ambient temperature and high humidity)

Time of use of fresh mortar :

30 minutes (depending on environmental conditions)

Mixing Ratio :

180 ml de água / Kg de pó Consumo: 17,5 Kg de Pó/(m2 x cm espessura)

Consumption:

17.5 Kg of powder/(m2 x cm thickness)

Packaging :

25 kg paper bags – Pallet of 56 x 25 kg bags (1400 kg) 20 kg box (4 x 5 kg bags) / 12 kg box (8 x 1.5 kg buckets)

Cleaning :

Water

Storage :

6 months from the date of production, in closed original packaging and protected from humidity.

Flammability :

Non-flammable pH: 11

Apparent Specific Weight of Powder:

1.50 Kg/dm 3 Initial Setting Time: ≥ 30.0 Minutes (EN 1015-9) Density of Fresh Mortar: 2100 Kg/m 3

Compressive Strength (24 hours) :

≥ 15 N/mm 2

Compressive Strength at 1000ºC (28 days) :

≥ 6 N/ mm2 (test based on EN 1015-11 and according to Internal procedure)

CE Marking Data

Reaction to fire:

Class A1

Compressive Strength:

Class M30

Initial adhesion (tabulated value)

≥ 0,15 N/mm2

Water absorption by capillarity:

≤ 0,4 LG/m2 min0,5

Chloride content:

Density of hardened mortar in dry state:

1800 to 2000 Kg/m3

Water vapor permeability (Tabled value):

µ = 15 / 35

Thermal Conductivity (Tabled value:)

0,82 / 0,89 W/mºK

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