DH-207 high viscosity sealing material is a product developed and made with epoxy resin and polyamide as main ingredients. This grease type putty is developed for areas where sealing mark should not be left after sealing and easily used for concrete cracks or rough walls where no deep infiltration is necessary. This product's excellent quality shows better mechanical strength once stiffened than epoxy injection pumps.

It is used for the repairing of cracks of over 3mm when the measured width of a crack is larger than the allowable width in case the target member is structural member, or when the structural stability, durability, waterproof should be considered regardless of the identity of the target member. Applications are as follows.

Filling of large cracks of exterior wall of masonry structure.

Filling after V-cutting or U-cutting of large cracks of exterior wall of concrete structure.

Filling after V-cutting or U-cutting of the floor of underground parking lot.

Sealant filling of large building.

Filling of joints of concrete structures.

Grouting reinforcement of aged, weakened parts of concrete.

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.

As shown above, V-cutting and U-cutting is applicable to the repairing of relatively wide cracks over 0.5mm. The following work guidelines describe how to do a filling after cutting. The ways are subject to change depending upon the site condition.

Limitations on the work  Work shall not be allowed when the ambient temperature of the job site goes out of the range of 5℃~30℃ or the humidity is over 85%. Work is not allowed for the area where concrete is wet or set with more than 10% moisture in it or polymerized. To prevent the condensation of moisture, the surface temperature of surface temperature must be higher than the dew point at least by 3℃E and the relative humidity shall be lower than 85%.

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 Foam is smeared on your skin during the performance, 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 10~25℃ with no moisture. Store it in cool area. Storing period is about 6 months in sealed condition however it can be corrupted according to storing area and conditions. Preferably use it as soon as possible.