"Low Exotherm 150 Injection Epoxy - Wide Cracks"
(4 x 4 Litre Kit = 16 litres or 4.22 gal of resin)
Can also be used as an under water injection Epoxy-

Use
"Low Exotherm 150 Injection Epoxy - Wide Cracks" is designed for application using a pressure pot or other single component pumps. It has a relatively long pot life. Because of its lower heat of exotherm it can be used to fill larger voids and where necessary also provides excellent water displacement, even on underwater injection projects.

Component "A" (resin)

Specific Gravity          1.69
Viscosity                   2000 cps.
Colour                       White

Component "B" (hardener)

Specific Gravity           0.96
Viscosity                    100 cps.
Colour                         Black

Specific Gravity            1.62
Viscosity                    1200 cps.
Colour                         Grey
Solids by weight           100%

Pot Life 200 g. @ 25°C                  150 mins.
Tack free time @ 10°C/25°C           22/11 hrs.
Through cure @ 10°C/25°C             66/33 hrs.
Cure time is considerably longer at colder temperatures.

Cylinder - 63.5 x 76.2mm Ht.
           "Low Exotherm 150 Injection Epoxy - Wide Cracks"          33°C
           "Slow Set 85 Injection Epoxy - Fine Cracks"                   170°C

Box - 150 x 600 x 45mm
           "Low Exotherm 150 Injection Epoxy - Wide Cracks"          73°C in 140 mins.

Box - 150 x 150 x 45mm
           "Slow Set 85 Injection Epoxy - Fine Cracks"                    192°C in 60 mins.

"Low Exotherm 150 Injection Epoxy - Wide Cracks", 4 litre sample:
           Practical working time - 45 mins.

"Slow Set 85 Injection Epoxy - Fine Cracks", 4 litre sample:
           Practical working time - 20 mins.

Minimum Application Temperature
"Low Exotherm 150 Injection Epoxy - Wide Cracks" cures at temperatures down to 0°C.

Moisture Sensitivity
"Low Exotherm 150 Injection Epoxy - Wide Cracks" has excellent water displacement capabilities and develops adhesion to wet concrete which easily exceeds the concrete strength.

Physical Testing 51mm (2") cubes

Compressive strength                       7 days               28 days
Dry                                                  77.9                 97.5 MPa
Tremmied under water                       77.5                 97.5 MPa
slant/shear adhesion
ASTM C881/C882 exceeds requirements of this specification on wet surfaces at 5°C.

2 days             18.1 MPa                         Concrete Mortar
2 days             15.2 MPa                         Concrete Mortar
2 days             17.9 MPa                         Concrete Mortar
14 days           18.7 MPa                         Concrete Mortar
14 days           17.9 MPa                         Concrete Mortar
14 days           18.7 MPa                         Concrete Mortar
Note: ASTM C881 requires
  2 days              6.9 MPa
14 days             10.3 MPa

Surface Preparation
The area adjacent to the crack must be cleaned to obtain good adhesion. "Heavy Epoxy Paste - Regular Set" is used to seal the crack and the injection devices.* These devices may be plastic packers,  tees or ports depending on the technique used. To use ports it may be necessary to use a vacuum drill to make the holes for the injection ports. Plastic tees are placed on top of the crack. The placing of the injection devices is critical. Foreign material in a crack may be a major factor in the success of injection. It is usually possible to flush cracks to remove contaminants. A thorough study in this regard is always necessary. * For wet or underwater situations use "Heavy Epoxy Paste - Underwater" for this purpose.

Mixing and Application
"Low Exotherm 150 Injection Epoxy - Wide Cracks" is designed for use with a pressure pot or other single component pumps.

1. After the crack has been prepared for the pressure injection process, resin is pumped from one port (or tee) to the next in sequence. On a vertical crack, one starts at the bottom. If there is water in the crack it must be expelled by the resin being injected and this phase must continue until clear, water free resin is emerging from the next port (or tee).

2. The injection process must be continuous until the entire crack is filled with resin.

Clean Up
Use appropriate "Cleaning Solvent". CAUTION - Solvent is flammable so there must be no open lights, flames, sparking motors or pilot lights in the vicinity. Smoking near the solvent is to be forbidden. All equipment must be cleaned immediately after use.

Safety and Toxicity
Two component epoxy systems are capable of producing severe injury to, or destruction of, skin and eye tissues. They are classified as corrosive for shipping purposes. Precautions must be taken to prevent prolonged or repeated skin contact and it is essential to protect the eyes from splashes. Protective clothing, rubber gloves and chemical goggles should be worn when working with these products. Some people become sensitized when working with epoxy resin systems. The sensitization may appear in the form of skin or respiratory reactions. Avoid breathing vapours, particularly if these products are used in a confined area. Face mask with respirator #1224 is usually adequate. Air supplied mask is suitable for use in confined areas.

Storage
Store in heated area and on pallets. Do not allow products to freeze. Shelf life in unopened container is two years.

Packaging
4 litre units, 4 units per carton. Each container is clearly marked with product name, component designation (A or B), manufacturer's name, batch number and ratio of component mixtures.

Warranty
Manufacturer WARRANTS that the product conforms to its chemical description and is reasonably fit for the purpose stated on its Technical Bulletin when used in accordance with its directions. Manufacturer makes NO OTHER WARRANTY either expressed or implied. Buyer assumes all risk in handling.

Johnson Group Online
www.leakproofonline.com