Technocast Firebrick Plaster LW12

Weight 25 Kg

Rp 490,000 490000.0 IDR Rp 490,000

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Specifications
Description

Mixing Ratio and Application Method

Mix LW-12 insulating castable by adding approximately 7.5–11 liters of clean water to each 25 kg bag (30–45% water ratio). Begin by placing about 80% of the required water into a mixing bucket or mechanical mixer, gradually add the castable while mixing continuously, then add the remaining water until a uniform, workable consistency is achieved similar to thick plaster or lightweight concrete. Mix for 3–5 minutes until fully homogeneous and free of dry lumps. The material can then be applied by casting into formwork, troweling onto surfaces, or plastering over insulation layers such as ceramic fiber blanket. Spread the castable evenly to the required thickness, compact lightly to remove air pockets, and finish with a trowel. After installation, allow the material to cure for at least 24 hours before gradual heating to ensure proper strength development and prevent cracking.

Note - Pizza domes 1 bag LW-12 covers approximately 0.45 m² at 50 mm thickness.

LW-12 Insulating Castable is a lightweight refractory material designed to provide thermal insulation in high-temperature systems. It is commonly used as a secondary lining or outer insulation layer behind dense refractory materials to reduce heat loss and improve energy efficiency. The material can be applied by casting or troweling onto prepared surfaces and, once cured, forms a durable insulating layer that helps maintain stable temperatures while protecting surrounding structures from excessive heat in applications such as boilers, furnaces, kilns, and ducting systems.

LW-12 is also commonly used in pizza oven construction as the outer insulating shell. A typical pizza oven layer system consists of SK32 fire bricks and mortar forming the dome, ceramic fiber blanket insulation, a 50 mm layer of LW-12 insulating castable as the outer shell, and a final finish such as cement render, tile, or mosaic.

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