The Best Decorative Plaster for Bathrooms

The best decorative plaster for a bathroom depends on how wet the surface gets. For showers and wet rooms, Tadelakt and microcement lead; for walls and powder rooms, sealed Venetian plaster and Marmorino are ideal. Here is a simple guide to choosing.

For showers and wet rooms: Tadelakt or microcement

These are the only finishes we recommend for direct, constant water. Tadelakt is naturally waterproof Moroccan lime plaster with a soft, handmade glow. Microcement is a sealed cement coating with a sleek, modern-concrete look. Both are seamless and grout-free.

For bathroom walls: sealed Venetian or Marmorino

On walls away from the shower spray, sealed Venetian plaster or Marmorino gives a warm, polished, humidity-tolerant backdrop with real depth.

For powder rooms: anything goes

With no shower, a powder room can take any finish — including dramatic high-polish or metallic plaster — making it the perfect place to be bold.

Quick guide

• Shower / wet room: Tadelakt or sealed microcement.
• Bathroom walls (not in spray): sealed Venetian plaster or Marmorino.
• Powder room: any decorative plaster, including polished or metallic.
• Floors: microcement, for a seamless, warm, concrete-look surface.

Frequently asked questions

What is the most waterproof plaster for a bathroom?

Tadelakt is naturally waterproof through its lime-and-soap chemistry, and sealed microcement is fully waterproof once its polyurethane topcoat is applied. Both are ideal for showers and wet rooms.

Can any plaster go in a shower?

No. Standard Venetian plaster, Marmorino, Roman clay and limewash are for walls, not constant-water zones. For showers, stick to Tadelakt or microcement.

Is decorative plaster a good idea for bathrooms?

Yes — with the right finish in the right place it gives a seamless, grout-free, spa-like bathroom that is both beautiful and hygienic.

Explore our finishes

Ready to see these finishes in person? Explore Venetian plaster, microcement, Tadelakt, Marmorino and Roman clay on our decorative plaster page.