The substrate, application conditions and project size all matter. Undercoat gypsum is used for the first layer on walls and ceilings. Discuss your application and preferred bag size with our sales team before ordering.
View and buyAsk the installer whether the material is for an undercoat or final finish. Tell sales the wall type and surface condition; a generic name is not enough for a precise choice.
Do not directly compare bag prices at different weights. Compare price per kilogram, consumption at equal thickness and delivered cost. If consumption has not been verified, a cost-saving conclusion is not established.
Our undercoat benchmark is one 33 kg bag per 1.3 m² at 2 cm. Enter the actual wall and ceiling area, thickness and bag weight. Confirm the final quantity with your plasterer, allowing for surface unevenness and application.
Read more ←Black/undercoat gypsum and ready-mixed gypsum-soil prepare and level walls and ceilings. This base coat is generally thicker than the white finishing coat used to create a smooth appearance before paint preparation. Specify the exact product when ordering.
Read more ←Micronized describes powder fineness and processing. Undercoat describes a role in the first plaster layer. These terms describe different characteristics, and neither replaces a product data sheet.
Read more ←Setting and drying are different processes. A firm surface does not mean all moisture has left. Decide when to apply the next layer using the product instructions and actual site conditions.
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