Leakage-Proof Sealing Rope | OEM cotton rope for construction

Advantages of Leakage-Proof Sealing Rope:

Good flexibility — It helps prevent deformation of steel molds. Wholesale available for sealing grout Leakage-Proof Sealing Rope used in utility poles and pipe piles.
High water absorption — The thickness can be customized according to the size of the pipe mold groove, providing excellent leakage prevention.
Easy to store — Resistant to rot and deterioration.

Causes of Slurry Leakage:
Severe Mold Deformation
Deformation under prestressed conditions: Repeated handling and hoisting inevitably cause cumulative distortion.

Inadequate Mold Joint Cleaning
Failure to remove residual slurry debris from joint surfaces and dovetail grooves after feeding.

Incomplete Mold Fastening
Missing/damaged closure bolts not replaced; insufficient bolt installation.
Suboptimal Seal Material Selection
Ideal seals require: soft texture, uniform diameter, high absorbency, moderate tensile strength.
Improper Seal Rope Installation
Slack placement without tensioning
Inconsistent positioning (partially inside/outside joint)
Entrapment within pile body
Air pressure dislodgement during mold closure
Result: Not only fails to prevent leakage but exacerbates slurry loss.

Causes of Slurry Leakage at Pile Sleeve-Body Interface:
A. Incomplete cleaning of residual contamination at end-plate sleeve areas in upper/lower mold cylinders.
B. Ovality deformation of end-plate sleeve skirt outer diameter, causing irregular gaps with mold surfaces.
C. Non-compliant D2 dimension (bell mouth geometry) of end-plate sleeve skirt.

Primary cause of slurry leakage: Suboptimal rope diameter.
As molds deteriorate with prolonged use, deformation occurs, progressively enlarging joint gaps beyond original design tolerances.

Preventive Measures for Slurry Leakage:
1.Timely identification and maintenance of issues such as mold deformation and centrifuge instability.

2.Strict control over mold cleaning and maintenance.

3.Strict control of dovetail joint cleaning and smooth mold-covering operations during mold closure.

4.Strict enforcement of symmetrical tightening procedures during mold assembly.

5.Rigorous inspection to prevent missing bolts for mold fastening.

6.Timely adjustment and control of concrete formulation.

7.Strict quality control in the production, dimensions, and geometry of end-plate sleeve skirts.

8.Selection of appropriate sealing materials for mold dovetail joints（cotton ro

pe）.