Silcas 1C

VITCAS Silcas 1C Silica Refractory Cement for Insulating Firebricks – 1550°C

VITCAS Silcas 1C is a high-silica, air-setting refractory cement specifically developed for bonding Grade 30 insulating firebricks. With a maximum service temperature of 1550°C / 2820°F, it is designed for high-temperature refractory brickwork where mortar compatibility and joint performance are critical.

When exposed to operating temperatures, Silcas 1C develops a strength closely matched to that of the insulating bricks. This helps reduce the risk of brick cracking or breakage caused by excessively strong mortar joints, making it particularly suitable for insulating refractory linings in industrial furnaces and kilns.

Key Features and Benefits

• High Temperature Resistance: Maximum service temperature of 1550°C / 2820°F.
• High-Silica Formulation: Refractory cement developed for compatible insulating brickwork.
• Grade 30 Brick Compatibility: Specially designed for setting and jointing Grade 30 insulating firebricks.
• Matched Fired Strength: Develops strength comparable to the insulating bricks, helping minimise joint-induced cracking and damage.
• Air-Setting Formula: Sets at ambient temperature before the lining is exposed to heat.
• Ready to Use: Supplied as a premixed paste for convenient application.
• Fine-Grained Consistency: Suitable for thin refractory mortar joints in compatible insulating brick constructions.

Applications

• Industrial Furnaces: Setting and jointing Grade 30 insulating firebricks in suitable high-temperature furnace linings.
• Ceramic Kilns: Construction and maintenance of compatible insulating refractory brickwork.
• Foundry Equipment: Jointing insulating firebricks in appropriately designed high-temperature foundry installations.
• Refractory Lining Repairs: Localised repairs to compatible insulating brick structures where a silica-based mortar is specified.
• High-Temperature Insulation Systems: Bonding suitable insulating bricks in applications requiring controlled mortar strength and thermal stability.

Application Considerations

Silcas 1C is intended for thin-joint refractory brickwork. Apply to clean, sound and suitably prepared insulating bricks, maintaining the joint thickness specified for the lining design. Allow the mortar to air-set and dry before gradually introducing heat in accordance with the manufacturer's instructions.

Please note: The 1550°C service rating applies to Silcas 1C and does not increase the temperature capability of the insulating bricks. Select the mortar according to the brick grade, operating conditions and complete refractory lining design.