A combination of a well designed and manufactured sheet pile interlock and a properly applied sealant can virtually eliminate any fluid leakage through the sheet piles, even at high hydrostatic pressures. ESC offers a range of time proven interlock sealants that can be used for vinyl or steel sheet piles in various conditions from tropical to arctic. They are especially effective for cofferdams and marine applications.
ESC's DPS-500 sealant is a hydrophilic polyurethane which has effective application for sheet pile interlocks. It has a high expansion coefficient with over 500% volume increase.
It is a one component system making it easy to handle and apply. It is both lightwieght with good surface adhesion which allows easy application even in confined spaces. It can be applied in virtually all weather conditions and retains its original despite repeated expansion. It has been extensively used in both freshwater and seawater environments and swells to about 200% volume in 24 hours or less and over 300% volume within 48-72 hours of immersion.