The Crack Isolation System from Omega Products International provide's an effective method in reducing the appearance of surface cracking in new and existing plaster systems. Stucco cracking continues to be one of the most common complaints from building owners. Omega's Crack Isolation System is a cost effective way to improve customer satisfaction and reduce call backs or repairs. It is also a great choice for repairing or refreshing an existing stucco building that has surface cracking.
The Omega Crack Isolation System reduces stucco cracking by integrating woven fiberglass mesh into the plaster base coat prior to applying the stucco finish. This mesh helps to reinforce the plaster membrane, which reduces the appearance of cracks. The mesh can be embedded directly into the wet brown coat or embedded into one of Omega's acrylic modified base coats over the existing plaster base coat or finish.
The Crack Isolation System may be applied in three different methods:
Mesh is embedded directly into the wet brown coat.
Mesh is embedded into an approved base coat over a cement plaster brown coat.
Mesh is embedded into an approved base coat over an existing stucco or acrylic finish.
The Crack Isolation System is a excellent choice for new or retrofit commercial, residential, or institutional projects. The CI System maybe applied over the following properly prepared substrates:
The following products are components in the Crack Isolation System. Please see the product’s data sheet for additional information.
Omega Reinforcing Meshes are alkali resistant, woven glass fiber fabrics specially designed to be used with approved Omega base coats and are available as:
The Crack Isolation System may be applied in three different methods. In all three methods, completely embed mesh into the base coat and trowel smooth, ensuring that no mesh is visible. A minimum two-inch overlap is required at all mesh joints. After embedding mesh, the surface shall be left suitable for the application of an acrylic or a cementitious finish. See the appropriate Omega product data sheet for mixing and application instructions.
After application of the brown coat and before final set has occurred, fully embed mesh into the brown coat
After brown coat has properly cured, apply the base coat over the brown coat a minimum of 1/16” (1.6mm) thick and completely embed mesh.
The finish surface must be clean and free of loose debris, dirt, dust, efflorescence, grease, oils, curing agents, and cleaning solutions. Painted or glossy surfaces may need to be roughened to ensure a proper bond of the base coat. The substrate must be structurally sound. Apply the base coat over the existing finish a minimum of 1/16” (1.6mm) thick and completely embed mesh.