Monolithic Silica Repair Kit

Si-Seal Monolithic Silica Repair Kit
  • Lubisol Si-Seal is a monolithic silica repair kit used for hermetic sealing and hot repair of glass furnace silica crowns.

      The most important features of Lubisol Si-Seal are:
    • Strong and durable adhesive bond with silica refractories up to 1620 °C, and a coefficient of thermal expansion - very similar to the one of silica bricks.
    • Very high corrosion resistance against the action of alkalies and other fluxes.

    Lubisol Si-Seal is applied as a protection hermetic sealing layer during the heat-up of the furnace at 800 °C temperature, or after the heat-up of the glass furnace.

    Lubisol Si-Seal is very suitable for hot application in the form of plastic balls to fill up the Rat-holes during a hot repair or the expansion joints of a silica crown after heat-up.

    Lubisol Si-Seal is a heat setting composition, and it is converted into a hard body under the action of the heat of the silica crown.

    An application technology is delivered by the supplier, together with the material.

  • Properties (typical) Lubisol Si-Seal
    Maximum grain size 3.00 mm
    Material requirement 2.00 kg/dm³
    Specific gravity after firing at 500 °C 1.80 kg/dm³
    Thermal conductivity at 20 °C 1.15 W/m.K
    Thermal conductivity at 500 °C 1.38 W/m.K
    Thermal expansion up to 1400 °C 1.3 %
    Working temperature 1620 °C
    Storage 60 months

    See full details:   attach Product Specifications (PDF)

  • Safety Data Sheet
    The Lubisol LFS contains a mineral acid (H3PO4) diluted with water. It is fire resistant and can not burn or explode. It is suitable for any kind of transport.
    Safety measures should be taken to protect the eyes and hands of the workers from the action of the acid. They must be wearing protective goggles and gloves. The acid is easily soluble in water. If needed for any reasons, the skin and eyes should be washed with clean water.
    Cold air blowing with ventilators should be available to protect the workers from the heat during the application of this material over a hot silica crown.

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Save Fuel

Lubisol - Save fuel

The amount of saved fuel is about 1400 m3 / m2 / year heavy oil *

Save Money

Lubisol - Save money

Estimated fuel savings up to EUR 400 / m2 / year *

Save Nature

Lubisol - Save nature

Burning less fuel reduces carbon dioxide CO2 emissions.

  * Estimated averages. Can vary based on different conditions.



Lubisol is offering a premium quality thermal insulation for various types of industrial furnaces, that is highly efficient and is helping your business to save fuel.

The company is also specialized in hot repair of rat holes, with no production interruptions.

This material is a proven technology with a worldwide acceptance and is offered at a competitive price for maximum effect.


Contact us

Lubisol Ltd.

pin Location
"Mladost-1" res.
Sofia city

mail Mailbox
P.O.Box 99
1784 Sofia

phone +359 2 88-444-87
print +359 2 975-3291


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