When it comes to fixing wall tiles, mastic and cement are two common types of adhesives used. Here are the key differences between the two:
Composition: Mastic is a premixed adhesive that comes in a paste or gel-like form. It is typically made from a combination of latex or acrylic polymers, and it contains additives for improved adhesion. On the other hand, cement-based adhesives, often referred to as thinset or mortar, are made by blending cement, sand, and other additives.
Application: Mastic is generally easier to use and apply since it comes pre-mixed and has a smooth consistency. It is ready to use right out of the container and is applied directly to the wall with a notched trowel. Cement-based adhesives require mixing with water before application to achieve the proper consistency. They are applied using a notched trowel as well.
Strength and Durability: Cement-based adhesives offer superior strength and durability compared to mastic. They are more suitable for heavy or large tiles, as well as areas with high moisture, such as bathrooms or outdoor applications. Cement-based adhesives are less prone to weakening or deteriorating over time.
Flexibility: Mastic is more flexible than cement-based adhesives. This flexibility allows for some movement and can help absorb minor shifts or vibrations in the wall. It makes mastic a suitable choice for areas where there may be slight movement or expansion and contraction, such as over wood surfaces.
Tile Types: Mastic is generally recommended for smaller and lighter tiles, such as ceramic or porcelain tiles. Cement-based adhesives are more versatile and can be used for a wider range of tile types, including natural stone, large-format tiles, and heavy tiles.
When choosing between mastic and cement for fixing wall tiles, consider factors such as the tile size, the location of the installation, and the level of moisture exposure. It's also advisable to follow the manufacturer's recommendations and consult with professionals to ensure you select the appropriate adhesive for your specific tile installation.