Sodium bentonite joint
JOINT WATERBLOCK ST WURTH
Sodium bentonite joint with hydro-expansive properties.
Barrier against the ingress of water.
Ensures perfect vertical and horizontal water-tightness on concrete, blocking the ingress of water.
When in contact with water, increases its initial volume, compensating for spaces, irregularities, cracks and micro-lesions present in the concrete, blocking the infiltrations.
Practical and easy to install.
fixed to the underlying material through simple riveting.
easy to connect.
Notice: Place Waterblock ST always inside the metal at a distance of at least 5 cm, and at least 8 cm. of concrete coverage, so as to avoid damage to the structure during expansion.
Formwork spacers should be positioned at a distance of 7 cm from the bentonite joint.
Water must not stagnate near the casting separation for at least the first 15/20 days of concrete curing; it should only be used for casting separation only in direct contact with concrete.
Cannot be used as expansion joint.
Store in a dry place, away from moisture and from the sun.
The technical advice given, while based on our best experience, should be considered, in any event, purely as guidance and should be confirmed by comprehensive practical tests. It does not remove the purchaser's responsibility to personally test our products to see whether they are suitable for the planned use.