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INNOVATIONS: PRESENT&FUTURE
New Fire Protection Coating for Interior Concrete Structures Edited by Sika Deutschland GmbH Stuttgart – Germany
info@de.sika.com
The fire protection coating for concrete surfaces Sika Unitherm Concrete W has recently been launched on the market. Initial application examples confirm the construction industry’s need for such a product for fast and cost-effective retrofitting of fire protection in both renovation and change of use of existing buildings.
T
he new, 1-pack fire protection coating Sika Unitherm Concrete W forms a heat-insulating intumescent layer when exposed to heat.
This prevents concrete spalling during a fire and additionally delays the heat input into the steel reinforcement.
Efficiently providing existing buildings with state-of-the-art fire protection Sika Unitherm Concrete W can be applied directly to the cleaned concrete surface without adhesion agents or grids. The new development is compatible with repair mortar products from Sika and is therefore particularly advantageous when renovating or changing the use of concrete buildings: the applicable fire protection requirements can be brought up to date quickly, cost-effectively and in a space-saving manner - existing walls, ceilings or beams do not have to be replaced with new ones at great expense. The compatibility of the fire protection coating Sika Unitherm Concrete W with Sika repair mortars has been tested and proven in the event of fire. Sika is the only manufacturer on the market that can provide this performance feature. The fire protection coating can be applied easily and directly to the concrete by hand or by airless spraying. Thanks to a new method developed by Sika, the dry film thickness can be determined nondestructively on the concrete surface. Adhesion and functionality of the fire protection coating are not affected by this method. If required, the water-based top coat Sika Unitherm Top W is suitable for decorative, colourful interior design.
Detail of the Woolworth Haus in Mühlheim an der Ruhr (Germany).
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N.38 - 2021 JUNE - ipcm® Protective Coatings
