Before you buy

Check if this kit is right for your bathroom

This solution is designed to renovate jointed surfaces (tiles, mosaic, floor tiles…) without removing them. Check these four points before choosing size and colour.

Compatible surface

Surfaces with stable joints: tiles, mosaic, floor tiles, terrazzo or marble. This is not the right kit for plaster, drywall or cement substrates.

Coverage

Measure the height × width of each surface. The calculator adds a 10% margin and recommends the right kit size, or a combination for larger projects.

What's included

Joint filler, primer, microcement base coats, finish, varnish, additive and sandpaper: the complete layer-by-layer system.

What you need separately

Sealer roller, polycarbonate trowel and basic tools. You can find them in microcement tools.

FREE shipping included in the price. Delivery times depend on your country; you will see the estimate at checkout.

Step-by-Step Guide

Everything you need to know before you start

What’s included and what do I need separately?

The kit includes all the Smartcret system products needed for your surface and your square metres: you will find them detailed one by one, with their quantities, in the ‘Description’ tab below. You will also need a sealer roller, a polycarbonate trowel and basic protection and application tools. The microcement comes ready to use, already pigmented; only the final coat of varnish is mixed with its booster.

How do I choose the coverage?

Measure the surface to be covered: for walls, width × height of each section; for floors, worktops or furniture, length × width of each face. Subtract only large openings, add up the total and add a 10% margin. Choose the kit whose m² is equal to or greater than the result; if in doubt between two, go for the larger one. You can also use the calculator in the selector.

How long does the project take?

The full project takes 3 days. The varnish reaches full cure from 7 days.

Can I return or exchange the kit?

Yes: you have 14 days from delivery for exchanges and returns. Return shipping is at the customer’s expense and your order number is enough for us. See the full conditions.

Is it right for my surface?

Each kit is formulated for a specific project and surface: you will find it in the kit name and in the line with ✓ above the coverage selector. If your surface is different (for example, plasterboard instead of tiles), use the assistant at the top and we will take you to the right kit. First repair any loose piece, active crack or damp problem.

Description

What’s inside the 16 m² microcement kit for bathroom walls with joints

16 m² of jointed bathroom walls. One kit. And a makeover that turns your “meh” bathroom into a “where did you get that?!” moment. This microcement kit lets you erase grout lines and add serious style—no need to remove tiles or break anything. It’s ready to use, with no pigments and no prior experience needed. A single mix — the varnish with its enhancer at the end. Just you, your motivation… and a solid playlist.

Non-absorbent surfaces? Mosaic, marble, porcelain or tiles are no problem. No need to remove a thing—just apply and enjoy the transformation.

Inside the kit:

Smart Jointer (2 × 1.5 Kg): The paste that erases the past. Fills gaps, smooths imperfections. What used to be grout lines is now a clean, ready-to-go surface.
Smart Primer PLUS (2 × 1 L): Your invisible hero. A pro-grade primer that helps tile, marble and mosaic fall in love with microcement. Smooth change, zero stress.
Smart Base (2 × 16 Kg): This is where strength begins. Body, colour and character. A ready-to-use, pre-pigmented base coat that builds structure and impact.
Smart Liso (1 × 3 Kg + 1 × 6 Kg): The finish that steals the show. Seamless, soft, and elegant. When you touch it, you get it. When you see it, you want it. Pre-pigmented and ready to roll.
Smart Varnish (2 × 2 L): Next-level protection. Resistant to water, humidity and abrasion. Available in matte or satin, because good design also deserves durability.
Smart Booster (2 × 100 g): The best-kept secret. Strengthens the varnish and turns your wall into a shield against water, steam and daily wear.
Sandpaper (12 × 40 grit, 20 × 220 grit, 12 × 400 grit): To smooth out each layer to perfection. No bumps, no edges, no flaws. Just crisp, clean surfaces.

📌 Before you get started...

This kit doesn’t include tools like the Smart Roller or polycarbonate trowel—but you can add our tool pack to make your finish as flawless as your feed.

Application

How to apply the 16 m² microcement kit for tiled bathroom walls

This is where the real change begins. That moment when your bathroom walls stop being a patchwork of the past and turn into a clean, modern, seamless surface. This ready-to-use microcement kit for 16 m² for tiled bathroom walls is made so you enjoy the process and feel like a pro from the very first roll.

The secret? Don’t rush. Put on some good tunes. And follow these steps:

1. Goodbye past, hello fresh start

Clean those walls like you mean it and get rid of any dust or moisture. If there are cracks or imperfections, fix them. Then bring in Smart Jointer: it fills, covers and levels the grout lines.

🕒 Drying time: 24 h. Sandpaper: 40 grit.

2. Get a solid grip

Smart Primer PLUS is your best friend here. One even coat on tile, mosaic or marble, wait 30 minutes… and your surface is ready for transformation.

3. Solid base, strong style

Apply two coats of Smart Base. First with the Smart Roller, then smooth it out using the polycarbonate trowel at a 45° angle. Wait 6 h between coats and sand lightly.

🔧 Sandpaper: 40 grit

At this point, your bathroom starts to seriously level up.

4. The finish that changes everything

Time for Smart Liso. Same tools: Smart Roller and trowel. Apply two coats, 6 h apart, sanding in between.

🔧 Sandpaper: 220 grit

The result? A soft, continuous texture so sleek you’ll want to show it off in video calls.

5. Protect your masterpiece

Mix Smart Varnish with Smart Booster and apply three thin coats. Let each one dry for 4 h and sand after the first and second.

🔧 Sandpaper: 400 grit · 🕒 Curing time: the varnish reaches full strength after 7 days.

Choose matte or satin. Either way, it’s ready to resist water, humidity… and jealous glances.

🧠 Smartcret tips for stress-free application:

✔️ Sand by hand. No power tools—too much heat could ruin your finish.
✔️ Trowel at 45°. That angle is pure magic.
✔️ Keep it thin. Always. More product doesn’t mean better results—too much can crack.
✔️ Be patient. The varnish needs a week to fully cure. You (and your wall) deserve it.

The best part? You did it all yourself. No mess, no renovations. Just you, your bathroom… and a result straight out of a magazine.

Step-by-step guide

Technical data sheets

Technical data sheets for the ready-to-use microcement kit for bathroom walls with joints up to 16 m²

Want to know what’s behind every tub? Here are the technical data sheets for all the products included in the 16 m² microcement kit for jointed bathroom walls. Because if you’re going to do it yourself, you might as well know it all:

Specification sheet Smart Jointer

Specification sheet Smart Primer Plus

Specification sheet Smart Base

Specification sheet Smart Liso

Specification sheet Smart Varnish

Success stories: how our customers rate Smartcret

4.6/5 ★ (65 reviews on Google)

Christopher Berumen

My wife and I had been looking into microcement for our bathrooms and found Smartcret. Being from the US we worried about importing, but our kits arrived within a couple of weeks. We DIY'd with a contractor friend and LOVE how it came out — smooth, waterproof, and the colours match the catalogue perfectly. If you're in North America, watch for sales to offset shipping costs!

★ ★ ★ ★ ★

Marcus Sprigens

The solution for revamping a tiled bathroom is Smartcret. Amazing product, very high quality with a smooth to touch finish, a pleasure to walk on in bare feet. No mixing powder and liquid as it comes ready to apply. Super happy with the results and great customer service.

★ ★ ★ ★ ★

Dee Moe

We used Smartcret for our bathroom walls and it turned out amazing. It was a long process but the steps were easy enough to follow. They were very supportive on WhatsApp and were there every step of the way.

★ ★ ★ ★ ☆

Nicole Lyons

I found this product because I was so sick of cleaning tile grout. I wanted the Tadelakt look without spending $$$. The process takes time but the result was worth it. Only use the plastic trowel — a metal one leaves black marks. The Smartcret team was very helpful. I love my new shower and get so many compliments on it!

★ ★ ★ ★ ★

Smadar Levi

I had an amazing experience with Smartcret, absolutely amazing for beginners like me. I changed the floor in a beautiful small cabin and the change was incredible. The service was wonderful. Highly recommend!

★ ★ ★ ★ ★

Tarek Hijazi

We are so happy with Smartcret and the finish! It has given our bathroom a luxurious feel. We have already recommended it to 5 people. Thank you!

★ ★ ★ ★ ★

Elan Argil

Great renovation option if you don't want to demo the tile — it sticks to anything. The company is responsive with great customer service.

★ ★ ★ ★ ★

Neil Henderson

First time user of this product. It's so easy to use and looks really good. Lots of colours to choose from. Great customer service as well.

★ ★ ★ ★ ★

Jade Savage

I live in the US and ordered from Smartcret. My order arrived within a couple of weeks and the customer service is out of this world! I had an item arrive damaged and they were fast to ship a replacement. Great communication. I'll be doing our shower soon!

★ ★ ★ ★ ★

Franny Zywicki

We used it in our Hostal for all the bathrooms and floors. We absolutely loved the product — so much quicker as a ready mixed product. Really helpful team. The only tip: use a stronger varnish on your wettest areas.

★ ★ ★ ★ ☆

16 m² microcement kit for tiled bathroom walls