Large Cracks

Definition:
Large cracks are defined as cracks on the surface of skim coat with a width of 0.5 to 3 mm, usually lengthwise in shape.

 

Causes:
• Movement in the building structure.
• Imperfect plaster connections.
• Conduit or cable pipelines were not completely repaired.

 

Solutions:
• Use Mowilex Alcaplast Repair AP 800 skim coat as recommended by manufacturer.
• Avoid applying skim coat under direct sunlight; use a roof protector to protect areas that will be fixed.
• Add Mowilex Alcabond bonding agent to increase adhesiveness.
• To clean cracked areas, widen the crack until it’s slightly wider using a chisel or grinder.
• Apply  Alcaplast Repair AP 800 skim coat to the cracks with a width of 1 to 2 mm until the cracklines are smoothed out.
• If needed, smooth out the cracks with unaffected areas,  Alcaplast Repair AP 800 and Alcabond can also be used to create thin skim coat.
• When dry, sand and clean off any leftover dust using a wet cloth.
• After the layer of  Alcaplast Repair AP 800has dried (after 7 days), apply a coating of Mowilex Undercoat Tembok before applying the paint topcoat.