Mixing mortar for grouting involves achieving the right consistency – not too thick and not too thin. Here's the general process:
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Start with a container: Choose a clean bucket or mixing tub.
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Add water: Pour some water into the container. The amount depends on the size of your batch; start with less, as it's easier to add more water than to remove excess.
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Add mortar mix: Gradually add the dry mortar mix to the water.
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Mix thoroughly: Use a trowel or a mixing paddle attached to a drill to combine the water and mortar mix. Mix until you achieve a smooth, consistent paste.
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Adjust the consistency:
- Too thick: Add a small amount of water and continue mixing.
- Too thin: Add a small amount of dry mortar mix and continue mixing.
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Aim for a toothpaste-like consistency: The mortar should be pliable and hold its shape, but still be able to flow into the grout joints.
It is better to add small amounts of water or mortar mix at a time, mixing well after each addition, to avoid overshooting the desired consistency.