KÖSTER KD 2 Blitz Powder is a highly reactive powder with an extremely short setting time. It stops flowing water within seconds. Form the powder into a firm ball and press it onto the leaking water to stop the leak within seconds.
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After stopping the leak the surrounding area is waterproofed: Mix as much KÖSTER KD1 Base as can be applied within 10 minutes into a viscous, spreadable mass (slurry). The slurry should haves a creamy, easy to brush consistency. Apply using a firm brush. Immediately rub KÖSTER KD2 Blitz Powder into the fresh, moist slurry with a gloved hand until the surface is dry. Without waiting, brush on the KÖSTER KD3 Sealer with a clean brush.
Immediately afterwards and again after approximately 30 minutes, repeat step 1 (KÖSTER KD 1 Base). The maximum total thickness should be less than 4 mm.