Rapid-Crack (Expansive Mortar) must be thoroughly mixed with clean normal water before use. The required volume is 1.5 &#; 1.7 litters of water into a bucket, then gradually add one 5 kg bag of Expansive Mortar. Stir until you obtain a smooth lump-free slurry.
Use only open pails or containers for mixing. Narrow necked containers must not be used.
Avoid adding extra water, as this may reduce concentration and effectiveness of the mix.
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