After removing wall tiles, you're often left with stubborn adhesive residue. While sanding is mentioned as a time-consuming method, the most effective solutions are different.
According to the reference provided, tile adhesive is very strong, and sanding it down would take a lot of time and effort.
The recommended methods to deal with wall adhesive after removing tile are:
- Skim over with bonding: This is presented as the "best solution". Skimming involves applying a layer of bonding material over the adhesive to create a new, nice flat surface.
- Use a good strong scraper: This is offered as an alternative option. Its effectiveness depends on the strength and type of the adhesive.
Preparing the Wall for New Tiles
Regardless of the method used to handle the old adhesive, the reference emphasizes a crucial step before applying new tiles:
- PVA the wall: Before re-tiling, you must apply PVA (Polyvinyl Acetate, often used as a sealant and bonding agent) to the wall. This helps to prepare the surface and improve adhesion for the new tile adhesive.
Summary of Methods
| Method | Description | When to Use | Outcome | Prerequisite Before Re-tiling |
|---|---|---|---|---|
| Skim with Bonding | Apply a layer of bonding material over the existing adhesive. | Considered the best solution for a flat surface | Creates a flat surface | PVA the wall |
| Use a Strong Scraper | Physically scrape the adhesive off the wall. | Alternative, depends on adhesive strength | Removes or reduces adhesive | PVA the wall |
| Sanding (Not Recommended) | Grinding down the adhesive (note: the reference states this is time-consuming) | Generally not recommended due to effort | Removes adhesive | PVA the wall |
Choosing the right method depends on the condition of the wall and the amount/strength of the remaining adhesive. Skimming provides a fresh, flat base, while scraping is a more direct removal method. In all cases, proper preparation with PVA is essential before applying new tiles.
