HydroBloc Si 709 – Siloxane concentrate for damp-proof courses 5kg

HydroBloc-Si-709 is a reactive, self-crosslinking siloxane concentrate for highly effective damp-proof courses / horizontal barriers against rising damp. HydroBloc Si 709 acts against capillary rising moisture in damp, wet, and water-saturated building materials. HydroBloc-Si 709 can be used to create effective seals where other silicone- or silane-based injection agents have long since failed. HydroBloc-Si 709 is a concentrate. For injection, it is diluted with up to 15 parts water (tap water), depending on the type of building material. This makes the product very economical to use. Upon contact with the building material, Si-709 sets via a chemical reaction and is permanently bonded to the structure of the building material. The crosslinking reaction occurs automatically; the reaction initiator is already included in the product.

The operating principle of HydroBloc SI 709: The active ingredient undergoes a chemical reaction with the building material, thereby stopping capillary suction (water transport). Systems that work through silicification clog the pores or make them narrower. New systems like HydroBloc SI 709 no longer use this technology; the permanent seal is achieved by interrupting the suction process / water absorption.

Application

HydroBloc Si-709 is introduced into the wall via boreholes so that the injection solution, which spreads in a circle around the boreholes within the wall, overlaps to form a continuous barrier layer. This injection can be carried out using the pressure method with injection pumps or without pressure via reservoir containers / injection bottles. Pressure injection is always recommended for severe moisture (water content in masonry > 50%). For moisture levels > 70%, pressure injection is mandatory. This is the only way to ensure the penetration of the injection agent into water-saturated building material pores. Fissured masonry full of cavities must always be grouted with a cement suspension (Silex Suspension 931). IMPORTANT: A prerequisite for the function of horizontal barriers is that the masonry in the injection plane is completely saturated with the injection agent. This impregnation depends on the structure, composition, and water content of the existing wall building materials and always requires sufficient injection time.

Times of less than 7-10 minutes for pressure injections and 8 hours for pressureless methods are minimum values and should not be undercut.

HydroBloc-SI 709 is diluted with tap water before processing. The degree of dilution depends on the moisture level and absorbency of the wall to be sealed and can range between 5 and 15 parts water to one part Si-709.

• for moderately damp or highly absorbent building materials = 1:10 - 1:15
• for wet or only weakly absorbent building materials = 1:5 - 1:9

Properties

Composition: Reactive siloxane solution Appearance: Clear liquid Density: Approx. 1.01 g/ml at 20°C Viscosity (undiluted): Approx. 2 cSt. at 20°C Flash point: > 75 C Odor: Slight, alcoholic

System accessories for HydroBloc Si 709 – Siloxane concentrate for horizontal barriers

Tröppel Container 019 – for pressureless horizontal barriers Seal Fix expansion mortar 930 for sealing injection boreholes Silex Suspension 931 – application-optimized injection mortar for cavity filling Borehole protective cap No. 082 Injection packers for the grouting of injection resins

Contents: 5 kg

Suitable accessories:

• Tröppel 019
  
• Tröppel 028

We deliver exclusively to selected EU countries. The stated prices apply only to the European mainland; no delivery to German or European islands. We deliver all goods curbside.