Low Carbon
(Environmental)
Reduces environmental impact by using injection materials made from industrial by-products.
Micro Capsule
GP Method
Low-Carbon Inorganic
Low-Pressure Injection Method
Microcapsule GP Method PV
GP396 comparison video
ABOUT
Micro Capsule GP Method is environmentally
friendly and people-friendly.
This construction method is an innovative low-pressure injection technology for repairing concrete cracks, utilizing a geopolymer-based inorganic injection material that our company was the first in Japan to develop.
This injection material demonstrates high adaptability even in harsh environments such as rivers, ports, water treatment facilities, tunnels, and bridges, contributing to a reduction in long-term maintenance costs. This construction method will support the infrastructure of future society.
FEATURES
Features of the Micro Capsule GP Method
Low Carbon
Environmentally
Friendly
The injection device is reusable.
Low Odor
Contains no volatile organic compounds (VOCs).
Shorter
Construction Time
Provides sufficient working time even in summer, while rapid hardening allows same-day removal.
One Type
Viscosity variation is small from low to high temperatures, enabling installation with a single type.
Suitable for Both Dry
and Wet Substrates
Provides high adhesion even on damp substrates and does not require water permeation on dry substrates.
High Safety
Unlike epoxy systems, it does not generate significant heat and is non-flammable.
Stable Installation
Small, pre-portioned packages eliminate the need for weighing and simplify on-site management.
Fine Crack Filling
High flowability enables filling of fine cracks.
Cold-Weather
Application
Maintains flowability even at －5°C, enabling use in cold regions and during severe winter periods.
Please feel free to contact us.
FLOW
Crack injection procedure
01Surface Preparation
When installing injection devices over cracks, to ensure good adhesion, use a wire brush and sander, etc., to abrade approximately 50 mm along the crack line.
As a rule, existing finishing materials should be removed; however, if the existing finish is sound, surface preparation and installation of the injection devices may be performed without removing the finish.
02Determine Injection Port Locations
03Install Bases
04Crack Sealing
05Prepare Injection Material (GP-396)
- Confirm ambient temperature and the material’s pot life.
- Prepare a clean mixing container to prevent contamination.
- Pour the mixing liquid into the container first, then add the powder and let it stand for about 30 seconds.
- Mix uniformly for at least 4 minutes using a hand mixer.
- Pay special attention to corners at the bottom of the container, which are difficult to mix.
- Fill the cap container completely with the injection material, close the cap securely, and attach it to the main unit.
06Start Injection
Inject the injection material (GP-396).
07Confirm Injection Status
When the amount of injection material remaining in the cap-con decreases, refill the injection material and repeat the injection process.
08Complete Injection, Curing, Removal
After confirming that the injection material has solidified, remove the injection equipment and its base.
09Finishing / Cleaning / Completed
［Notes on Installation］
- Confirm the applicable temperature range of the injection material.
- Store materials in a dry place away from direct sunlight.
- In summer, pay special attention to the work-site temperature.
- Thread a rope through the safety ring to prevent dropping, ensuring safe work even at height.
- In winter (around 5°C), considering nighttime cooling, confirm sufficient hardening before removal.
- Because GP-396 is strongly alkaline, wear protective goggles, gloves, and a mask during work.
Please feel free to contact us.
LICENSE
Micro Capsule GP Method is carried out by certified
supervisors who have received training.
A scene from a training course to obtain a license
for Micro Capsule GP Method.
This construction method is carried out or managed on-site
by licensed personnel who have received training and certification
from our association.
