Red Seal Tilesetter Practice Exam

What type of adhesive would typically be recommended for heavy tiles?

1. Thin-set

2. Mastic

3. Acrylic glue

4. Foam adhesive

The correct answer is: Thin-set

Thin-set adhesive is recommended for heavy tiles due to its strength and durability. Thin-set is a cement-based adhesive that provides a strong bond suitable for various types of tiles, including large and heavy formats. Its formulation allows for better load distribution and ensures that heavy tiles remain securely in place over time. The use of thin-set is particularly advantageous because it can be modified with additives to enhance its performance, such as improving flexibility or water resistance, allowing it to handle the weight of heavy tiles effectively. Additionally, thin-set is generally appropriate for both interior and exterior applications, making it versatile for different project types. In contrast, mastic is typically used for lighter tiles and is not recommended for heavy applications due to its weaker adhesion properties over time, especially in humid environments. Acrylic glue and foam adhesive are not commonly used for setting tiles, especially heavy ones, as they do not provide the necessary durability or structural support that thin-set offers.