Pc leakinject 2k flex 6811 lv
Name
Pc leakinject 2k flex 6811 lvProduct description
PC® LEAKINJECT 2K FLEX 6811 LV is a two-component, flexible, very low viscosity polyurethane injection resin. Designed for waterproofing both wet and dry cracks.
Resin curing time - 150 min (+12°C), 90 min (+25°C).
TDS
Our products
Fields of application
- Elastic waterproofing of wet and dry cracks in walls, floors, concrete structures, underground structures.
- Injection of very small cracks.
- Dry injectability - high injectability for cracks as small as 0.1 mm
- Injectability in non-dry environments - high injectability with crack widths from 0.1 mm
Benefits
- The reaction does not require water. Without water, the material becomes an elastic sealant. When reacting with water, the material foams slightly.
- Excellent adhesion to concrete and metal.
- The curing process does not cause shrinkage, the volume remains unchanged.
- Does not dry out after curing.
- Does not cause corrosion of metals.
- The resin can be combined with other water-reactive polyurethane resins from the PC® Leakinject range (2-stage injection).
Application
PREPARATION
PC® Leakinject 2K Flex 6811 LV components are supplied ready to use.
The reaction time depends on the temperature of the material, the structure of the building structure and the possible amount of water present. Higher temperatures speed up the reaction time, and low temperatures slow it down.
mixing ratio
| Component A | Component B | |
|---|---|---|
| 1:1 by volume | 12 kg | 13.2 kg |
| 22.73 kg | 25 kg |
Define injection method
Method 1:
- Mix the two components in a 1:1 volume ratio.
- Pump the mixture with a pump.
Method 2
- Pump resin with a two-component (manual, electric or
- pneumatic) stainless steel pump.
- Component A and component B must be given separately, in a 1:1 ratio by volume.
- Make sure the pump and equipment are clean and free from contamination from previous injection jobs.
- Check the quality of the concrete, as injection involves pressure.
| Pumping time | 60 min. at +20°C |
| The time after which the mixture becomes liquid | 10 hours at +12°C
6 hours at +25°C |
| The time after which the mixture completely hardens | 7 days at +12°C
5 days at +25°C |
DRILL HOLES AND PACKERS
- Determine the type and size of the packers depending on the type of pump, the thickness of the slabs, overlaps and the type of injection.
- Make the crack visible down to the structural concrete so that the nature of the drilling can be determined.
- If steel reinforcement is present, try to locate it and plan your drilling pattern so that the reinforcement is not pierced.
- Drill holes at an angle of approximately 45° or less and in the direction of the crack. Make sure the hole crosses the crack.
- The distance between the drilled holes depends on the width of the crack.
- Install the packer in the drilled hole.
PUMPING POLYURETHANE RESIN
- Prepare the pump to start the injection.
- The injection pressure depends on the structure and size of the crack.
- Start pumping at the lowest point of the fracture.
- Continue pumping until resin flows out of adjacent packer(s). This is necessary to achieve an even distribution of the material.
- Stop pumping, disconnect and move on to the next packer.
- Continue the procedure until the crack is completely filled.
CLEANING
- Clean the pump and equipment with PC® Ecoclean at every stop of more than 15 minutes, and also at the end of pumping work.
- When cleaning agent comes out of the pipes, flush them with a sufficient amount of cleaning agent.
- Use PC® PU cleaner to remove cured polyurethane residue.
Storage
Store in tightly closed original packaging at temperatures from +10°C to +30°C.
Store in a cool, dry, well-ventilated place, away from fire hazard areas and containers with strong oxidizers, alkalis and inorganic acids. Protect from direct sunlight and moisture.
Warranty period of storage in the manufacturer's container is 12 months.
Storage beyond the date indicated on the label does not necessarily mean that the product is no longer suitable. But if the shelf life is exceeded, it is necessary to check the properties of the product before use.
Packaging
Component A: Metal pails with a capacity of 12.00 kg or 22.73 kg;
Component B: Metal pails with a capacity of 13.20 kg or 25.00 kg.
Safety information
Wear safety goggles, gloves and protective clothing. Avoid contact with skin and eyes. In case of contact with eyes: rinse thoroughly with clean water and seek medical advice. In case of contact with skin: rinse with plenty of water.
Component B in PC® Leakinject 2K Flex 6811 LV may react with water or atmospheric moisture to form CO2 gas. This may cause pressure to build up in a closed package or container that has already been opened.
Mix PC® Leakinject 2K Flex 6811 LV residue with sand and dispose of this mixed material in accordance with local regulations.
For detailed instructions, please refer to the relevant product safety data sheet. It can be provided upon request.
Physico-chemical properties
| Name of indicator, unit rev. | Norm | ||
|---|---|---|---|
| Component A | Component B |
Mixture | |
| Color | Colorless | dark brown | brown |
| Viscosity, at +25°C, mPa*s | 144 | 62 | 118 |
| Density, at +25°C, g/cm 3 | 1.005 | 1.105 | 1.052 |
| Reactivity evaluation at +20°C
Time required for a 1 kg mixture to raise the temperature from +20°C to +40°C in a 1 liter vessel, minutes |
28 | ||
| Injection time, at +20°C, minutes | 60 | ||
| Loss of deformability after cyclic compression test, %, no more | twenty | ||
| Shore A hardness, fully cured | 72 | ||
| Water resistant under pressure | Waterproof at 2×10 5 Pa | ||
| Concrete compatibility | Compatible | ||
| Modulus of elasticity, MPa | 6.6 | ||
| Tensile strength, not less than, N/mm 2 | 3 | ||
| Elongation at break, % | 128 | ||
| Injectability into dry sand | Easily injected | ||
| Injectability into wet sand | Easily injected | ||
| Adhesion to dry concrete, N/mm² | 1.30 | ||
| Adhesion to wet concrete, N/mm² | 0.63 | ||
| Adhesion to sandblasted metal plate, N/mm² | 3.59 | ||
| Elongation at +3°C, % | 117 | ||
| Glass transition temperature, °C | – 35.2 | ||