Nevada Classification C-20 ANSI Tiling Standards Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

The sealant known for its non-sagging properties in vertical applications is Grade NS. This designation stands for 'Non-Sag' and indicates that the material is specifically formulated to maintain its shape and position when applied to vertical surfaces, thus preventing any movement or dripping that could compromise the seal or its appearance. This is particularly important in tiling projects where precision and aesthetic considerations must be taken into account.

In contrast, the other types of sealants are designed for different applications or properties. For example, Grade P typically refers to a sealant that has specific performance attributes but may not possess non-sag characteristics. Type S and Type M sealants also have specific uses or construction attributes that cater to various needs, such as bonding or flexibility, rather than focusing on non-sagging properties in vertical installations.