Soil Improvement

Grout for Soil Binding and Stabilization

Call: 1-800-321-7212



SoiLok is an advanced polyacrylamide technology with proprietary formulation and process. It is a super low viscosity grout designed to penetrate fine silts, sands, coarse sands and top soil to a desired depth, either in or below the water table- all the way to bedrock. The resin remains fluid until polymerization, allowing for excellent penetration. SoiLok is ideal for geotechnical use in humid environments and sandy soil and is the economical alternative to traditional grout injection methods.


Primary Applications:

• Curtain grouting 
• Soil treatment and stabilization 
• Tunnels (subway, water, utility, etc.) 
• Storm sewers and box culverts 
• Below-grade parking decks 
• Retaining walls



• The variable set time range is long– from minutes to more than an hour– and is adjustable in the field. 
• High chemical resistance
• Extremely flexible
• Great adhesion even in damp environments
• Non-corrosive in both liquid and cured forms
• NSF-61 compliant for contact with potable water
• Minimal project footprint
• Made in the USA
• Maximum permeation - variable levels of viscosity 


One application for SoiLok ® is for waste containment to prevent below grade hazardous materials from migrating. View the video below for more information.


Case Study: SoiLok 20 used for underpinning at Air Force base
Case Study: Using SoiLok for Stabilizing the Footing of a Building - 1028 Market Street / San Francisco, CA 


Need product safety training?
NASSCO's Grouting Unified Safe Operating Practices Program (USOPP)  is a course designed to ensure the safe handling of chemical grout used in the rehabilitation of underground infrastructure. Successful completion of NASSCO’s Grouting Unified Safe Operating Practices Program (USOPP) Exam demonstrates that a student has a basic understanding of knowledge to help protect employees and the environment from potential hazards associated with the use of chemical grouts. The student will read and understand the USOPP Specification developed by NASSCO’s Infiltration Control Grouting Committee (ICGC) prior to taking the Exam. An 85% pass rate is required for successful completion and recognition of knowledge.  Earn .3 CEUs or 3 PDHs.

This course was created with valuable input from several companies across the industry including Prime Resins. 



Additional Downloads