PC-Inject Seal® PU 200

Polyurethane-Based Injection resin foam for temporary Water Leakage Mitigation

PACKAGING

PC-Inject Seal® PU 200 The product is available in

Part A: 10 Ltr
Part B: 1 Ltr

PC-Inject Seal® PU 200 is a two-component, low-viscosity, solvent-free, water-reactive polyurethane injection resin that rapidly expands upon contact with water. Consisting of a base (Part A) and a Catalyst (Part B), this product is designed to swiftly create a dense and flexible foam. Its primary function is to effectively seal concrete cracks in tunnels and construction sites, thereby swiftly stopping water flow.

FEATURES

The cured foam exhibits remarkable stability.
It showcases exceptional adhesion to wet surfaces.
Demonstrates resistance to high hydrostatic pressure.
Rapidly expands, forming a dense cell structure.
Adjusting the Catalyst dosage can reduce the pot life.
The cured foam is non-toxic and suitable for use with potable water.
The foaming reaction commences upon contact of the mixed resin with water. unreacted resin remains viable for approximately 6-8 hours, reducing material
wastage.

USES

The PC-Inject Seal® PU 200 is specifically formulated to promptly halt water flow from concrete cracks or joints, creating a provisional seal before the application of a permanent polyurethane grout such as PC-Inject Seal® PU 300 (Flexible gel). Moreover, it serves the purpose of filling voids in both brickwork and concrete structures.

APPLICATION INSTRUCTION

It is recommended to engage a skilled and proficient team to undertake the injection grouting process. Prior to commencing the grouting procedure, a thorough review of the detailed Method Statement is imperative. The Polyurethane resin, comprising both Base and Catalyst components, is packaged in vacuum-sealed canisters. It is advisable to blend the complete kit in one operation. Nevertheless, in the case of smaller grouting areas, a reduced kit size may be more suitable.

INJECTION PROCESS

All cracks or joints requiring sealing should be meticulously cleared of debris and loose particles. Create a stitch-like pattern by drilling holes at a 45° angle on both sides of the crack in a crisscross manner, ensuring intersection at the crack’s midpoint. Insert premium steel packers into the drilled holes securely. Address any honeycombs in the concrete by applying a rapid-setting mortar plug. Before commencing the grouting procedure, cleanse the hoses with a cleaning solvent to eliminate any residual impurities that may lead to obstructions. Pour the required amount of the mixed resin into the injection pump’s feed container. Begin the injection grouting process by sustaining a steady pressure of 2 to 3 bar, gradually elevating it to a maximum of 4 bar. Start injecting from the lower end or one side, continuing until the crack is completely filled or until water stops seeping out from the crack.

MIXING

Commence by pouring the requisite quantity of catalyst (Part B) into the base (Part A) container and blend them meticulously
using a suitable paddle mixer affixed to a standard drill.Mix the components for approximately 3 minutes until a consistent blend is achieved.Ensure that the mixed resin is utilized within its pot life, which spans from 6 to 8 hours. It is important to note that the shelf life diminishes if stored above +25°C or below +5°C.Maintain the product in an upright position during both storage and transportation.Prior to application, allow the product to acclimate to room temperature for at least 12 hours.Please bear in mind that cured foam may exhibit color variations when exposed to ultraviolet light. For enhanced durability in outdoor environments, contemplate applying a protective paint or coating to the cured foam.

HEALTH AND SAFETY

PC-Inject Seal® PU 200 contains Isocyanate, necessitating the use of proper personal protective equipment (PPE) and safety
glasses during handling and application. The injection grouting procedure should solely be executed by experienced individuals, as improper usage of the product can present significant risks.