If you want to create a non-draining floor, you can use Sandfix-14 which, by creating a surface layer on the joints, insulates them from water.

To begin with, the joints should be saturated with gravel and resin from the Flexy range to create strong, elastic joints.

When the joints are dry, a layer of Sanfix-14 polymeric sand is spread over all the joints to be treated.

The sand is then moistened with Acquafix to create a solution resistant to sweepers and heavy traffic.

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