weber Epoxy SI-2 Epoxy Injection - Slow
Produktdatablad
PRODUCT ADVANTAGES
• Low viscosity with good penetration
• Good chemical resistance
• High compressive strength
• High tensile strength
• Long pot-life
PRODUCT DESCRIPTION
weber Epoxy SI-2 Epoxy Injection – Slow is a two component, solvent free epoxy injection grout. The resin is based on Bisphenol
A/Bisphenol F. The hardener is an aliphatic polyamine.
weber Epoxy SI-2 Epoxy Injection – Slow is delivered in sets of 1kg. Other quantities possible on request. The resin and the hardener are packed in separate containers.
PRODUCT SPECIFICATION
PROPERTIES
Colour
Comp. A (resin) – Clear, transparent
Comp. B (hardener) – Clear, transparent
Mixing ratio
Comp. A : Comp. B = 5 : 1 parts by weight
Comp. A : Comp. B = 4 : 1 parts by volume
Density
1070 kg/m3
Viscosity
5oC: 5000-6000 mPas
10oC: 800-1000 mPas
20oC: 100-150 mPas
Pot life
5oC: 320 minutes
10oC: 160 minutes
20oC: 70 minutes
Full cure
5oC: 28 days
10oC: 16 days
20oC: 7 days
Compressive strength
80 MPa
Flexural strength
44 MPa
E-modulus
2500 GPa
Bond strength
To dry concrete : 4-4,5 MPa (concrete failure)
To wet concrete : 4-4,5 MPa (concrete failure)
Lowest recommended
curing temperature
5o C
Oppdatert: 05.04.2017
USAGE AREA
weber Epoxy SI-2 Epoxy Injection –Slow is specially developed for repair of cracks in cast concrete structures with the intention
of rebuild strength, tighten against water leakage or protect against corrosion. It can be used in environment with very high
humidity or even cracks filled with water. The long pot-life is feasible in higher temperatures or when a long time of application is
required.
STORAGE
The components should be stored in a dry place in closed packages. Shelf life is minimum 12 months when unopened and
stored correctly.
PRE-TREATMENT OF SUBSTRATE
Before any repair work is carried out, an investigation should be made to establish if the repair is feasible. Samples should be
taken from the concrete structure to ascertain the quality of the concrete, and to determine the depth and width of the cracks.
To prepare the concrete for injection, cut all surface cracks of major significance with a “V” notch rotary cutter to a depth of
6 mm and width 6-mm. Clean dust and loose particles with dry compressed air. Seal the “V” notched cracks with a thixotropic
putty (weber Epoxy Putty). At the same time, insert 6-10 mm copper pipes or injection along the cracks at intervals of 1½ times
the thickness of the concrete.
MIXING
Resin and hardener must be thoroughly mixed before use. Recommended temperature on the components before mixing is
min. 15oC.
APPLICATION
After the sealing composition has cured sufficiently, i. e. over night, the injection can be carried out using pressure equipment
capable of operation at pressures up to 2 MPa. This equipment can range from a simple hand operated gun to a metering,
mixing, and dispensing machine.
The pressure pump may be fitted with a pressure release valve (for example set at approximately 0,7 MPa) feeding back into the
reservoir.
In order to ensure that the maximum degree of penetration is achieved the injection sequence for any one joint or crack should
commence with the floor, followed by the walls and then the ceiling. Always work from the lowest position and upwards. The
epoxy is injected under pressure in one pipe until the material emerges from the adjacent pipe. The first injection point is then
sealed and the injection equipment transferred to the next pipe, and so the operation is repeated until the entire area has been
sealed in one operation.
Test cores may be taken to establish the depth of penetration of the epoxy. If the cores show that at minimum of 90 % of the
crack volume has been penetrated, the repair is considered satisfactory. Vibration test meters have been used to assess the
effectiveness of the repair. Using a jack-hammer as a vibratory source it has been found that on cracked concrete a variety of
readings are obtained depending upon the siting of the vibratory source and the vibration meter, whereas after a satisfactory
injection repair operation constant readings are obtained.
AFTER-TREATEMENT
Tools must be cleaned with a suitable solvent, e. g. xylene, acetone, ethanol etc.
SAFETY INSTRUCTIONS
Hazardous – contains highly alkaline binder. Before using weber Epoxy SI-2 Epoxy Injection – Slow the precautionary information
submitted in Safety Data Sheet must be observed.
DISCLAIMER
Since there are different conditions and requirements that apply in any case, Saint-Gobain Byggevarer AS cannot be liable for
other than the information provided in this product datasheet. Examples of information and conditions beyond Saint-Gobain
Byggevarer AS’s responsibility (if specially pointed out or not), involves storage, construction, preparation, how the product works
together with other products, workmanship and locale conditions. The information provided in this product data sheet is based
on our current knowledge and experience about the product. All of the above information must be considered as guidelines. It is
the user’s responsibility to ensure that the product is suitable for the intended use, and also to perform acceptance check and
self-inspection control. The user is responsible if the product is used for purposes other
than recommended or for improper installation.
Saint-Gobain Byggevarer AS
Brobekkvn. 84, Pb 216 Alnabru, 0614 Oslo
Tel. 22 88 77 00
[email protected]
www.weber-norge.no
Oppdatert: 05.04.2017