Advanced Chemical Technologies

A Leader in silane waterproofing technology since 1976

About act

Nationally and internationally, ACT products are approved and used by Departments of Transportation to protect their highway infrastructures. We have the expertise to provide the best products in the market. Advanced Chemical Technologies, Inc. is committed to research and development. We bring to the market the highest quality silane weatherproofing solutions. Our products protect concrete, brick, masonry, and natural stone structures around the world.  READ MORE

SIL-ACT® Products

SIL-ACT® Protects Concrete, Brick, Masonry, and Natural Stone Structures Around the World!

The History of SIL-ACT®

  • Over 40 years of research and development with continuous testing confirm Advanced Chemical Technologies, Inc. is a leader in silane technology. The world’s first silane bridge deck treatment was conducted by Advanced Chemical Technologies, Inc. (ACT) in August 1977. Since then SIL-ACT® silane has been used to treat thousands of bridge decks worldwide. In 1982, U.S. Patent #4,342,796 “A method for Inhibiting Corrosion of Internal Structural Members of Reinforced Concrete” was issued to Advanced Chemical Technologies, Inc.

The Chemistry of SIL-ACT®

  • SIL-ACT® is an alkyltrialkoxy silane treatment that permanently weatherproofs concrete and masonry without forming a surface coating. Unlike conventional surface coatings and sealants, SIL-ACT® water repellent products chemically bonds to the substrate. This creates a unique, effective water repellent barrier. Once SIL-ACT® penetrates the surface, a rapid chemical reaction occurs, where part of the silane molecule evaporates leaving the active portion to adhere to the concrete.
  • When SIL-ACT® is applied to concrete or masonry, the chemical reaction creates a one-way filter where salt, water, chloride ions and staining substances are repelled while vapor passes freely out of the concrete.
  • SIL-ACT® allows the concrete dry more with age, therefore providing increased protection for reinforcing steel components.


The testing is complete and the performance is proven.  Since the world’s first silane bridge deck treatment was conducted by Advanced Chemical Technologies, Inc. in August of 1977, millions of dollars in laboratory and field evaluations and more than a decade of independent tests have concluded beyond a shadow of a doubt that SIL-ACT® is the protective treatment of the future.  Tested for strength, durability, and adding life at dramatic cost savings, these test conclusions are unanimous. READ MORE

Advantages of SIL-ACT®

  • Stops water and salt intrusion
  • Vapor permeable
  • Permanent chemical bond
  • Deep penetration/forms a penetrated protective layer
  • Does not affect skid resistance
  • Easy to use
  • Cost effective/lower initial cost and longer service life
  • Resists freeze thaw damage
  • Resists acid rain damage
  • Extends bridge deck life cycle
  • No appearance change
  • No yellowing
  • No surface texture change
  • Not susceptible to ultraviolet or chemical degradation
  • Outperforms siloxanes

SIL-ACT® Protects

  • Resistant to wind and driven rain
  • Deep penetration
  • Resistant to chloride
  • No blushing or peeling
  • Keeps substrate cleaner
  • Prevents mildew growth
  • Breathable
  • Resistant to efflorescence and water borne staining
  • Resistant to water intrusion
  • Protects concrete and other masonry
  • Creates longer life cycle for concrete 
  • Protect rebar with our Corrosion Inhibitor (PCI-100)

SIL-ACT® Performance Testing

SIL-ACT® products have been tested by:
  • Wiss, Janney, Elstner
  • Nelson Testing Laboratories
  • CTL Group
  • Alberta Transportation and Utilities
  • Numerous state DOT’s
Specified SIL-ACT® Performance Tests:
  • ASTM C-642
  • ASTM C-672
  • ASTM E-514
  • Alberta T&U (1B)
  • AASHTO T-259
  • NCHRP 244