DATA SHEET: LUBISOL #2 SL - Super Light Thermal Insulation
Monolithic Thermal Insulation

  LUBISOL insulating materials are water mixtures of different ingredients, mainly silicates with a chemical bond, and they are converted into light foamy insulating bodies under the action of the heat radiated by the hot crown or walls of the industrial furnace. The crown insulation for glass furnaces is reinforced with light insulating bricks and the whole structure has a strong cover coating.

  Lubisol-#2 – SL (Super Light) has a very low specific weight – 0.33 kg/dm³ and maximum working temperature 1400 °C. It is used usually as the second insulation layer over the crown, and the Lubisol-#3 (Cover Coat) is applied on top of the whole structure.

  Lubisol-#2 – SL is very suitable for insulation of glass furnace crowns, hanging roofs of the reheating and other type of furnaces in the glass and metallurgical industry. It is also suitable for application on the vertical walls of regenerator chambers and any other industrial furnaces and kilns.

  Lubisol-#2 – SL is supplied as a wet mix, ready for use by light ramming or tamping. The water content of the wet mix is under 10%. Special application instructions will be given by LUBISOL ENGINEERING CO. These instructions are a part of the patented LUBISOL Technology. A detailed written Application Technology is supplied usually together with the Lubisol materials.

Chemical Composition (%):

Approximate, Calcined Basis
SiO₂
Al₂O₃
Na₂O + K₂O
Fe₂O₃ + TiO₂
CaO + MgO
P₂O₅

Lubisol-#2 - SL
> 72.0
< 13.0
7.0
1.0
1.0
2.5

Other Properties (typical)

Material requirements (kg/dm3)
Specific gravity after firing at 500 °C (kg/dm³)
Thermal conductivity at 20 °C (W.mK)
Thermal conductivity at 500 °C (W.mK)
Thermal conductivity at 1000 °C (W.mK)
Maximum working temperature °C
Storage (months)

0.40
0.33

0.08
0.13
0.18
1400
60