Painting grout
Key points at a glance:
- Using grout as a design element: Colored or high-contrast grout can effectively alter the look of tiles and the style of the bathroom.
- Choose the right materials: For mortar and silicone joints, use special joint sealants and appropriate tools.
- Prepare the joints carefully: Cleaning, drying, and checking for damage or mold are crucial for achieving an even and long-lasting result.
Joints as a design element
Grout is much more than just a functional detail. Its color can significantly influence how calm, spacious, or textured a bathroom appears. That is why, especially in modern bathroom designs, it is increasingly becoming a focal point of the design.
tone-on-tone
When grout colors are closely matched to the tiles, it creates a sense of visual calm. The surfaces appear more uniform, and the room feels more spacious and tidy. This approach is particularly well-suited for smaller bathrooms or minimalist styles like Scandi or Japandi, where restraint and clarity take center stage.
Contrast joints
Using contrasting colors to grout bathroom tiles deliberately highlights the tile size. Dark grout paired with light-colored tiles creates graphic patterns and adds depth and character to the bathroom. This creates a modern, architectural look, especially with large-format tiles or geometric laying patterns.
It is important to have a cohesive overall design: too much contrast can quickly make a room feel cluttered.
Basic color selection
If you don’t want to go for a tone-on-tone look or overly stark contrasts, you should pay attention to the color temperature to find the right design for you. Warm grout colors like sand, greige, or cream enhance a cozy atmosphere and pair well with wood, natural stone, or matte finishes.
Cooler shades of gray or charcoal, on the other hand, have a more understated look and are a perfect match for minimalist bathrooms with a concrete or stone finish.
Materials for grouting
Make sure you have the right materials on hand for painting over the joints.
Colors
For traditional mortar joints, you can use special joint paint or latex paint. Conventional emulsion paints, on the other hand, are unsuitable, so you cannot paint joints with wall paint. If you want to paint silicone joints, you should use paint specifically designed for this purpose, which you can find at a home improvement store or specialty retailer.
Tools
You should also have the right tools on hand. This includes everything you need to clean grout and tiles so you can clean the treated areas both before applying the paint and in case of any spills. There are special grout pens available for painting, though these are better suited for smaller rooms. For larger areas, we recommend using small brushes or special grout rollers and masking off the adjacent tiles.
How to paint grout
Once you have all the necessary materials, you can start painting the grout in the bathroom. Here’s the best way to proceed:
1. Check the joints
Before painting the joints, you should check them for damage and mold. If you find any, do not paint the joints; they must be replaced first. A handy tip: For mortar joints, you can mix the paint directly into the mortar; for silicone joints, colored materials are sometimes available at specialty stores.
Tip: Check out our magazine to learn how to replace silicone caulking and what to do if you find mold in your bathroom.
2. Clean the grout
Before you start painting, you need to thoroughly clean the grout lines. Limescale, soap scum, and grease must be completely removed so that the paint adheres evenly. Then let the grout lines dry completely; otherwise, the finish won’t last as long.
3. Masking
To avoid paint splatters and mistakes, it’s usually easiest to mask off adjacent surfaces. Plain masking tape is usually sufficient for this.
4. Painting
The actual process of painting the joints is quite straightforward. Of course, you should apply the paint evenly; depending on the product, a second coat may be necessary. It is essential to follow the drying times to achieve an even and long-lasting result.
