HPMC (hydroxypropyl methylcellulose) is a commonly used building additive, often used in adhesives to improve their bonding performance and construction performance. Although the search results do not directly mention the usage of HPMC tile adhesive, we can refer to the general usage of tile adhesives to understand how to use tile adhesives containing HPMC.

Usage of HPMC Tile Adhesive

Preparation

Clean the substrate and the of the tile: Before laying the tiles, it is necessary to clean the substrate and the back of the tiles to ensure that the surface is free of oil, dust, wax, other foreign matter. The substrate should be solid and clean, without any hollows, looseness, sanding, oil stains, or other substances that may affect bonding. For substrates, you can clean them with industrial detergent or degreaser, flush them with high-pressure water, and let them dry for 24 hours before laying the tiles For loose or absorbent substrates, you can brush on an interface agent to reinforce them to reduce the risk of tile falling off.

Mixing the Tile Adhesive

ing ratio: Different tile adhesives have different mixing ratios. For example, the mixing ratio for Laobanduo large brick tile adhesive is 20kg powder   .6kg water. It should be noted that when mixing the tile adhesive, there is no need to add cement or other pasting materials, otherwise it will affect the bonding and resistance of the tile adhesive. When making the tile adhesive paste, pour the tile adhesive powder into clear water, use an electric mixer to mix thoroughly until it becomes a paste without raw powder lumps. Let it stand for about three minutes after mixing, and then stir again before use.

Even mixing: Use a mixing rod to mix evenly until no particles present, let it stand for 5-10 minutes and then mix evenly again, and it is ready for use.

Application of the Adhesive

Application method: avoid hollows and tilting, use a special notched trowel to evenly apply the mixed adhesive to the work surface, forming a striated pattern. The thickness of the layer should be about half the height of the teeth of the notched trowel used1.

Application amount: Select the appropriate notched trowel according to the size the tile and the flatness of the substrate. For example, you can use a 3x3mm or 6x6mm notched trowel for wall tiles, a 6x6mm or 10x10mm notched trowel for floor tiles3.

Laying the Tiles

Adhere the tiles Gently press the tiles onto the intended position, and use a rubber mallet to lightly tap the tiles to ensure that the tiles are completely adhered to the adhesive. Depending on environmental temperature and humidity, wait 24-48 hours for the tile adhesive to fully cure2.

Cleanup Work

Clean up excess adhesive: Finally, use damp cloth to wipe away any excess tile adhesive to ensure that the work area is clean and new2.

Precautions

Use time: The mixed paste should be used up within1 hour, and it is not advisable to add water to the paste that has already set and mix it for reuse1.

Environmental conditions: Depending on the environmental temperature and, wait 24-48 hours for the tile adhesive to fully cure2.

By following the above steps, you can correctly use tile adhesives containing HPMC tiling. I hope this information is helpful to you!