Cracks & Control Joints

 In
  • TYPE A: FRACTURES UP TO 1/16 INCH CRACKS ( 1.6 mm )

HOW : Apply minium 2 coats of SEMCO Liquid Membrane™ to achieve a thickness of at least 30 mil to retard future reoccurrence of crack. 30 min at 70 °F between coats

PURPOSE : Repair process will aid lessening the chance for a crack to reform

  • TYPE B: CRACKS BETWEEN 1/16 – 1/4 INCH ( 1.6 mm – 6.3 mm )

HOW : Roll or brush SEMCO Liquid Membrane™ inside the crack. ALLOW IT TO DRY. Roll X-Bond Liquid as a primer coat. DO NOT ALLOW IT TO DRY. Apply X-Bond mixture (1 part X-Bond Liquid : 3 parts X-Bond Stone) to fill up the cracks. ALLOW MIXTURE TO DRY. ONCE DRY roll 2 coats of SEMCO Liquid Membrane™ to achieve a thickness of at least 30 mil to prevent future reoccurrence of crack. 30 min at 70 °F between coats

PURPOSE : Repair process will aid lessening the chance for a crack to reform

  • TYPE C: CRACKS OR OPENINGS EXCEEDING 1/4 INCH ( 6.3 mm + )

    STEP 1

    HOW : Roll or brush SEMCO Liquid Membrane™ inside the crack. ALLOW IT TO DRY. Roll X-Bond Liquid as a primer coat. DO NOT ALLOW IT TO DRY. Apply X-Bond mixture* to fill up the cracks. ALLOW MIXTURE* TO DRY. ONCE DRY roll 1 coat of SEMCO Liquid Membrane™. While still wet imbed 6” wide anti-fracture fabric to surface, and immediately roll an additional 2 coats of SEMCO Liquid Membrane™ to fully encapsulate Fabric Reinforcement.

    PURPOSE : Repair process will aid lessening the chance for a crack to reform

    STEP 2

    HOW : When applying the next line of anti-fracture fabric overlap the new sheet over the existing sheet a minimum of 2”

    PURPOSE : Creates a single surface to deter future reopening

    STEP 3

    HOW : Allow surface to dry and proceed to X-Bond Ensures there are no imprints and the surface is Brown Coat

    PURPOSE : Ensures there are no imprints and the surface is Brown Coat ready to receive the next step

     

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