Plastic sealing paste for waterproofing tubes with passing cables

Code: PRS.0197

Components: 1

Appearance: Paste

Mono-component Sealant compound, permanently plastic, slightly warm (+10% in volume in contact with water), for waterproofing underground holes, through which one or many wires and/or technical pipes pass, in masonry structures. It is extruded around the cables passing using specific dosing gun for 600 ml bags, and then covered with thixotropic mortar REPAR TIX G2.

Linee di appartenenza

General characteristics


Hydroexpansive product: +10 %


Density: 1.20 kg/dm³


Pot-life: 90 min


Min. recommended thickness: 8 cm


Shelf-life: 24 months


Use wearing protective gloves


Temperature of use: 0 / +50 °C



Technical specifications

Auto-ignition temperature

>200 °C


>190 °C

Available colours

- Green

Packaging and dimensions

- Cartridge 533 cc


- It does not harden over time, while maintaining its original plasticity.
- It is a non-toxic material.
- It is easy to apply, it adheres both to dry and wet surfaces. Usable even in the presence of slight water seepage.
- It expands slightly in contact with water (+10% ), thereby sealing any losses that may arise due to subsidence or vibration.


Approximately 1.7 cartridges of SYNTECH STOPAQ for each cubic decimetre of volume to be filled.

Use fields

Waterproof sealing for drilled holes in walls of concrete, bricks, tufa, etc., which are crossed by passing electrical cables and/or technical tubes in general (gas, plumbing, etc.).

Preparation of supports

Dust, soil, sand, loose parts, rust, and layers of paint of the pipes and old deteriorated sealant material must be removed with pressurised water or brushing, before applying the compound. The inner surface of the tube/hole containing the passing cables should be damp or wet.

Use method

To limit the thickness of SYNTECH STOPAQ, it is recommended to insert a barrier of polyethylene foam kerbs with an appropriate diameter (FILTENE FONDOGIUNTO).

SYNTECH STOPAQ will be extruded into the hole to be sealed, taking care that the paste encompasses all the passing cables. Compact, with the help of a wooden handle or the like, the paste just extruded against the polyethylene "barrier" previously positioned to seal all the gaps. The depth of clogging made with SYNTECH STOPAQ must be at least 8-10 cm.

Smooth the outer surface of SYNTECH STOPAQ, with special spatula or gloved hand, compacting it well. Finally, close the "mouth" outside of the tube/hole with REPAR TIX G2, minimum 2 cm thick, smoothing around the cables with a spatula.

Application methods

- Apply by hand

- Dispensing gun

- Spatula

Tool cleaning

- Water

Permitted supports

- Bricks

- Concrete

- Mixed walls (bricks and stones)

- Prefabricated concrete

- Rock walls

- Stone walls

- Tuff

Warnings, precautions and Ecology

In situations of low temperature (usually in winter) the cartridges of SYNTECH STOPAQ must be heated in water to +35°C, for about a quarter of an hour, before being used ("bain marie" heating).
For applications in steel pipes, provide a suitable layer of SYNTECH RGS epoxy primer on the surfaces that will be filled with REPAR TIX G2.

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