MARISTOP A is a single-component polyurethane product which reacts on contact with water.

MARISTOP A is intended for sealing large water inflows.
The addition of an accelerator during product application increases the reaction speed.

MARISTOP A is injected into the ground by means of a manual or mechanical pump.

Once injected, the low-viscosity product penetrates into the smallest fissures and, when in contact with water, produces a rigid foam which effectively seals the treated area