What mortar to use for dry pack shower pan?

Dry pack mortar is commonly used to create a shower pan in a tiled shower installation. The dry pack mortar used for this purpose is typically a blend of Portland cement and sand, mixed with just enough water to create a workable consistency. The ratio of Portland cement to sand can vary depending on the specific application, but a common ratio is 1 part Portland cement to 4 parts sand by volume.

When choosing a dry pack mortar for a shower pan installation, it is important to select a high-quality product that is specifically formulated for this application. Look for a mortar that is designed to resist water penetration, is mold-resistant, and has a high compressive strength to support the weight of the tile and the user.

Some manufacturers offer pre-blended dry pack mortar mixes that are specifically formulated for shower pan installations. These pre-blended mixes can save time and ensure consistent quality, but it is still important to follow the manufacturer’s instructions and best practices for installation.

When installing a dry pack shower pan, it is important to ensure that the substrate is properly prepared and sloped to allow for proper drainage. The dry pack mortar should be packed tightly into the substrate using a trowel or other suitable tool, and the surface should be leveled and smoothed as necessary. It is important to allow the mortar to cure completely before proceeding with the installation of tile or other finishes.