DH-150 is a structure repairing epoxy injection material which is easily injected into hairline cracks of concrete structures. DH-150 has high adhesive strength and complete water-resisting and reinforcing effect. It is highly effective in preventing rust on steel bars and recovering strength of concrete.

The treatment of concrete surface can be another way of securing durability and water-tightness for those cracks that have width
of below 0.2mm, but it is used for the job sites where surface treatment and filling methods cannot prevent any water leakage
from cracks, corrosion of reinforcing bars and carbonization etc. Main applications are as follows.

Repair and reinforcement of hairline cracks in the subway and tunnel.

Repair and reinforcement of hairline cracks on PC plate, concrete molding products.

Grouting reinforcement of aged, weakened parts of concrete.

Repair and reinforcement of hairline cracks on slabs and upper plates etc.

Pot Life  The period of time during which you can work without a change in viscosity after resin and hardener are mixed.

Tack Free  The state of hardening in which you can lightly touch the mixed resin with your hand, but the hardened material                          does not stick.

Hardening Time  The time it takes for the mixed resin to be hardened enough to realize about 80% of final mechanical strength.

 

① Reinjector is a mid-low pressure injecting device, upgraded to improve the effectiveness of grouting for crack repairing by
      incorporating the merits of the high pressure grouting of packer and the merits of syringe injector.
② Syringe injector is a low-pressure, low-speed grouting device. A syringe injector containing the resin is set on the cracks
      and the resin is slowly injected with the help of resilience of the rubber band.
As explained above, you can employ various kinds of methods by using numerous grouting devices. The following work guidelines
are based on the syringe injector, the representative low-pressure grouting method. You are free to change the materials depending
upon the site condition. Please refer to the reinjector method and packer grouting method to learn how to use.

All the equipments and tools that are used for this operation should be cleaned when the operation is finished. Detergent such as
M.E.K, Acetone, Xylene, Toluene and epoxy thinner should be used when cleaning. If the Epoxy resin is smeared on your skin during
the work, wash it immediately with flowing water.

- When you treating medical fluid, make sure you wear protective helmet, goggle clothes and other protective devices.
- If the medical fluid is smeared on your skin, wash it off immediately and clean up with soapy water.
- All the hand tools and equipments that are used for this operation should be cleaned with thinner thoroughly.
- If you are working in sealed room, then make sure to conduct constraint ventilation for clean air.
- If the medical fluid is smeared on your skin and causes skin trouble, then you should go see specialist for prescription.
- If the temperature is below 5℃, then you must artificially raise up the temperature of medical fluid. This way you can get proper
   Pot Life.
- If the atmosphere temperature is high and the area is humid, Pot Life of medical fluid quickens. On the contrary, Pot Life will slow 
  down in low temperature area.
- Be aware of it before you conduct the operation.

Recommended temperature for storage is 10~30℃ with no moisture. Store it in cool area. Storing period is about 12 months in sealed condition however it can be corrupted according to storing area and conditions. Preferably use it as soon as possible.