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Made in Korea, low-pressure perfusion reinforcing syringe set and instructions for crack low-pressure perfusion structural reinforcement (DPOH-00401)

Made in Korea, low-pressure perfusion reinforcing syringe set and instructions for crack low-pressure perfusion structural reinforcement (DPOH-00401)

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The low-pressure pouring reinforcing syringe is specially designed for cracks in structural walls. It is a syringe matching the crack injection repair method and is used to repair cracks in concrete and mortar. The syringe injects the epoxy resin into the cracks at low pressure and speed through rubber band pressure to restore the integration of the cracked concrete and mortar, preventing rainwater or carbonic acid gas from intruding into the concrete structure through the cracks and causing the neutralization of the concrete, thus restoring the concrete. The durability of the structure, simple construction, and low pressure will not damage the structure.

Product specifications:

  • Components: syringe, syringe base, rubber band
  • Injectable capacity of one syringe: 50cc
  • Origin: South Korea

Be applicable:
Various structural building structures, such as highways, bridges, residences, etc., may suffer from cracks due to internal factors such as aging of the building, improper internal stress, or external factors such as poor construction, earthquakes, and uneven foundation settlement.

Purpose of crack pouring:

  • Block the infiltration of air and moisture, prevent steel bars from rusting, and neutralize concrete.
  • The separated concrete surfaces on both sides of the crack are bonded and compounded, and the loose concrete is re-bonded to achieve a strengthening effect.

Repair principle of perfusion method:

  • The infusion method is a repair method that injects reinforcement into the crack from the surface of the crack to keep the crack displacement to a minimum and prevent deterioration or increase in width.
  • During the filling process, the air and reinforcing agent in the original cracks are replaced, and the air is gradually discharged through the fine cracks.
  • The larger the crack depth (section), the greater the required perfusion energy.

The necessity of structural crack reinforcement:

  • The structural system of the building loses part of its seismic resistance due to damage from earthquake forces. If the section is not reinforced and repaired, stress concentration will form on the original fractures during another earthquake, which will intensify the damage and reduce safety.

Fracture pressure pouring reinforcement method

1. Scope of application:
If structural cracks with a crack width of more than 0.3mm occur in reinforced concrete, main towers, bridge piers, abutments, spacer beams, main beam interiors and other structural elements, epoxy resin is injected under pressure to fill the cracks to repair the damaged beams. , columns, plates and walls and other structural elements to prevent moisture from penetrating and causing corrosion of steel bars.

2. Use construction method:
Low pressure and low speed continuous perfusion method.

3. Construction sequence:

1 Really investigate the cracks:
Carefully measure crack width, length and shape.
2 Pre-infusion treatment:
Use a wire brush or grinder to smooth the area where the sealant is intended to be applied to expose a solid surface, and use a high-pressure water gun to clean the surface of the crack and surrounding impurities.
3 Decide where to install the base:
Depending on the width and shape of the crack, the location of the injection is determined.
4 Base installation:
Use sealing agent to install the injection base so that it is fixed on the concrete surface and must match the center of the crack.
5 Crack sealing:
Use sealing agent to seal the surface of the crack firmly so that the injected resin will not be lost. The standard is to seal the crack with a width of 30mm and a thickness of 3mm.
6 Sealant health care:
Determine if the sealant has hardened.
7 Epoxy resin injection:
Use a syringe barrel to perform the injection operation. When the crack is wide, use a low-pressure and low-speed method to inject through the base.
Install the syringe barrel on the base and start the operation. Install one syringe every 20cm-30cm between injections.
During construction, attention should be paid to the fact that if the epoxy resin in the injection barrel has been completely injected into the crack, the injection barrel should be replaced immediately, and the epoxy resin should be replenished to continue pouring to ensure that the crack is indeed filled with epoxy resin.
8 Hardening regimen:
After the injected epoxy resin hardens, remove the syringe barrel and allow a 24-hour curing period.
9 Surface Modification:
Remove the base and use a grinder to remove the sealant to make the concrete surface flat. The finished surface must be painted with cement according to the current condition.


Construction examples of low-pressure pouring reinforcement for cracks:

Construction examples of low-pressure pouring reinforcement for cracks

Construction sequence diagram:

Low pressure pouring construction sequence diagram

related materials:

Crack sealing: Mungo 4100 crack sealing epoxy resin (Epoxy) can be used ~ concrete crack filling reinforcing material

Crack pouring: Mungo 4200 crack pouring epoxy resin (Epoxy) can be used ~ concrete crack repair and reinforcing material

Injection syringe: It can be pressurized with a rubber ring and used for low-pressure, low-speed continuous injection.


Visually check whether epoxy resin remains in the syringe barrel. If there is no epoxy resin remaining in the syringe barrel, it means that the crack has not been filled with epoxy resin. The syringe barrel should be replaced and epoxy resin should be added.

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