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Clay Plaster Mineral 20

Product Information

Single or multi-layer base and finishing plaster for interior use. Hand or machine plaster on masonry, solid building materials, reeds, etc.


Natural building clay up to 5 mm, mixed-grain washed or crushed sand 0 -2.8 mm. Grain group, oversize according to DIN 0/4, < 5 mm.

Building material values

Drying shrinkage 2.0%. Strength class S II. Flexural strength 1.0 N/mm2. Compressive strength 2.0 N/mm2. Adhesive strength 0.20 N/mm2. Abrasion 0.2 g. Bulk density class 2.0. Thermal conductivity 1.1 W/m∙K. µ-value 5/10. Water vapor adsorption class WS III.
Building material class A1.

Clay Plaster Mineral 20

Single- or multi-layer base and finishing plaster for interior use. Clay Plaster Mineral is a base and finishing plaster in one product. Its angularly crushed sand provides strength. After application, the mortar sets very quickly and can soon be worked on. As a base plaster it is suitable for all coarse and fine ClayTec clay finish plasters, e.g. YOSIMA. As a rough or even smooth finishing plaster with a mineral, straw-free surface texture, it is painted with the CLAYFIX clay coating system.

Delivery form, coverage

Dry 10.130 in 25 kg bags (add. 13.5 l plaster mortar, 1.35 m2 area at D= 1.0 cm. Approx. 1.85kg/m2 per mm plaster thickness.), 48 bags/pal.


If stored correctly and dry, will keep for an indefinite period.

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