Southwest Architectural Products
Southwest Architectural Products
  • TCU Expansion
    Vapor Lock 20/20

Vapor Lock Admixtures

The Vapor Lock family of products are the backbone of SPG (Specialty Products Group). Vapor Lock 20/20 admixture is the heart of the product line.  How does Vapor Lock work?  The chemistry behind Vapor Lock uses the free water and various components of cement to create additional C-S-H gel.  By doing so we close the capillaries and bleed channels which are normally formed in the concrete.  A Vapor Lock enhanced slab does does not absorb any additional moisture and therefore allows the on- time installation of flooring which rely on today's VOC free moisture sensitive adhesives.  View our product demo.

Vapor Lock Advantages




Each of our Vapor Lock products provides the following advantages.

    • Vapor proofs concrete (0.03US Perms ASTM E 96)
    • Water proofs concrete (1 x 10-9 cm/s permeability ASTM D 5084)
    • Allows easy installation of no VOC (water-based) adhesives & coatings
    • No additional moisture controls required
    • Increases concrete density and hardness
    • Increased abrasion resistance
    • Effective in reducing: Efflorescence, Freeze-thaw, spalling, Delamination, Spider cracking, and Slab curl

Head over to our Specialty Products Group Overview to learn about the solutions available. 


Our most popular products are:

Vapor Lock 20/20- stops moisture related construction issues

Vapor Lock 20/21- waterproof and densify to an industrial level

Vapor Lock 40/40- Corrosion Inhibiting & Waterproofing Concrete Admixture

Vapor Lock 401 System - Ultimate Concrete Surface densification at Placement


For those of you tired of buying Bull rock every time time it rains, then learn more about our soil stabilization solution

​Vapor Lock 20/20 Demonstration