AREXAL® - Injektion plus
€416.26*
Available, delivery time: 1-3 days
Double-acting injection fluid for horizontal barriers against rising dampness - "solvent-free"!
Product Description
AREXAL® Injection Plus is a low-viscosity liquid based on stabilized alkali silicate compounds with pronounced water-repellent properties for hydrophobic silicification of mineral building materials.
- Consumption: 2.5L per linear meter
Test Certificate
Properties and application of AREXAL® Injection Plus from the Institute for Building Materials Dr. Günther Böttcher dated May 31, 1983, and Expert Report No. 69/93, Richard-Grün-Institute, Ratingen.
Areas of Application
For the production of subsequent horizontal barriers and surface seals in masonry and concrete against capillary penetrating or rising dampness.
Mode of Action (Properties)
Once introduced into the masonry, the first phase involves the separation of the silica gel from the silicate component. The drying effect achieved by reducing the capillary absorption capacity leads to further drying in the masonry cross-section, which in turn allows the effect of the hydrophobic component of AREXAL® Injection Plus to develop in the second phase. This hydrophobization of the masonry cross-section also prevents future moisture penetration when secondary capillaries form due to shrinkage.
Application Instructions
Impregnation method: To achieve the desired effect, please follow these steps:
1. Drill holes with a diameter of 13 mm at an angle of about 30 degrees to the wall. These holes should be arranged linearly or staggered and must not be more than 240 mm apart, as shown in the attached system diagram. Ensure that the drill hole stops about 60 mm before the end of the wall.
2. Remove the drill dust from the holes and then impregnate the holes several times with AREXAL® Injection Plus until the capillary structure is completely saturated. Do not wait more than 8 hours between each impregnation.
TIP: Use a pressure sprayer, for example from "GLORIA", to fill the drill holes
3. Then close the drilled holes with special mortar (AREXAL® - Crystalline Sealing Slurry) by filling the holes.
4. If the wall thickness exceeds 60 cm, it is necessary to perform the impregnation from both sides of the wall.
Non-Pressure Injection Method
Impregnation method: Create drill holes Ø 30 mm at an inclination angle of approx. 30°, linearly or staggered at a maximum distance of 12 cm (see system diagram). Blow out the drill dust and then impregnate several times with AREXAL® Injection Plus until the capillary structure is completely saturated. The waiting time between each impregnation should not exceed 8 hours. Then close the drill holes with special mortar (AREXAL® - Crystalline Sealing Slurry) (fill them). For wall thicknesses over 60 cm, impregnation from both sides of the wall is required.
- Create drill holes Ø 12 mm or 25mm at an inclination angle of approx. 25° linearly or staggered at a distance of 12 cm. Drill hole depth = wall thickness minus 5 cm (see system diagram).
- Blow out the drill dust - tension packers or injectors.
- Introduce AREXAL® Injection Plus using the injection method. The injection is carried out until the capillary structure is completely saturated, with each packer/injector being supplied with AREXAL® Injection Plus over an extended period.
- Then dismantle the packers/injectors and close the drill holes with AREXAL® crystalline sealing slurry (fill them).
For cavities, two- or multi-shell masonry, a pre-injection (pre-filling) is necessary to obtain a compact structure.
AREXAL® Injection Plus
- does not attack construction steel
- is non-flammable
- does not decompose
The process is also suitable if the masonry is under hydrostatic pressure, but only in combination with AREXAL® products - crystalline sealing slurry as a rigid seal and drying of the masonry
Cleaning of the tools and injection machines with water.
Technical Data
| Material Base | low-viscosity, highly hydrophobic aqueous silicate-silicone mixture |
| Appearance | reddish liquid |
| Density | 1.09 kg/l |
| pH Value | 12.5 (highly alkaline) |
| Consumption | depending on the absorbency of the building material, guideline 1.2–2.2 l per 10 cm wall thickness and running meter or approx. 12–22 l/m2 masonry cross-section |
| Storage | frost-free |
| Shelf Life | 1 year in unopened containers |
| Delivery Form | in 22-kg plastic containers or 220 kg steel drum |
Safety Advice
Due to its alkalinity, AREXAL® Injection Plus is highly corrosive. The prescribed safety measures of the chemical professional association must be strictly followed. Work with gloves and safety glasses. Avoid skin contact with the product. To better protect the hands, apply a skin protection cream. Immediately rinse material splashes on the skin and in the eye with plenty of water and then seek medical attention immediately.
For further questions, please contact our support!
