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Lyne Labs, Brockton, MA

THE CHALLENGE:
Stop water from penetrating into the building's interior through cracks in the mortar joints of the exterior block wall.

THE ALPHA SOLUTION:
Adhesion testing using ASTM D 3359-02 Standard Test Methods for Measuring Adhesives by Tape Test, followed by the application of a flexible coating system to waterproof and provide an aesthetically pleasing exterior for the structure, as follows:

  • Performed surface preparation tests using high pressure water
  • Sika representative performed adhesion tests using ASTM D 3359-02
  • Every crack was opened using the dry cut saw method to form a small working joint
  • Cracks were then sealed with Sikaflex 1A, a single-component polyurethane elastomeric sealant
  • All sealant joints were then hand-detailed with Sikagard 550W Elastocolor tint base to prevent the sealant from shadowing through the coating
  • After detailing the base coat, the top coat was applied using Sikagard 550W   Elastocolor that had been tinted white

The RESULT:
A leak-free structure with a 5-year Sika warranty.

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