Why use tile adhesive instead of mortar?

Tile adhesive and mortar serve similar purposes in tile installation, but they have some differences that make tile adhesive preferable in certain situations:

1. Ease of Use: Tile adhesive is typically easier to use than mortar. It comes in pre-mixed or powder form that requires mixing with water, while mortar needs to be mixed from scratch with sand, cement, and water. This can save time and effort, especially for DIYers or small-scale projects.
2. Consistency: Tile adhesive offers consistent performance as it is manufactured to meet specific standards and requirements. Mortar mixes can vary in consistency depending on factors such as the mixing ratio and the quality of materials used, which may affect the quality of the tile installation.
3. Adhesion: Tile adhesive often provides better adhesion between tiles and substrates compared to mortar. It is formulated with additives such as polymers or resins that improve adhesion, flexibility, and water resistance, resulting in a stronger and more durable bond.
4. Flexibility: Many tile adhesives are formulated to be flexible, allowing them to accommodate slight movement or substrate expansion and contraction without compromising the bond between the tiles and the substrate. This flexibility is especially important in areas prone to temperature fluctuations or structural movement.
5. Moisture Resistance: Tile adhesive is often more resistant to moisture than mortar, making it suitable for wet areas such as bathrooms, kitchens, and swimming pools. Some tile adhesives have water-resistant properties that help protect the substrate from water damage.
6. Specialized Applications: Tile adhesive comes in various types, including epoxy adhesives, modified cement-based adhesives, and pre-mixed adhesives, each tailored to specific applications and requirements. For example, epoxy adhesives are ideal for bonding non-porous tiles, while modified adhesives are suitable for areas subject to moisture or temperature fluctuations.

While tile adhesive is generally preferred for its ease of use, consistent performance, and specialized formulations, mortar still has its place in tile installation, particularly for large-scale projects, outdoor applications, or when specific requirements dictate its use. Ultimately, the choice between tile adhesive and mortar depends on factors such as the type of tiles being installed, the substrate, environmental conditions, and project requirements.