Microcement and Microtopping: How Do They Differ from Other Plasters?

Written by: Barry Affleck

How Do They Differ from Other Plasters?

Microcement and micro-topping systems are among the fastest-growing segments of the decorative finishing industry. Although people often group them with Venetian plasters, they are fundamentally different materials designed for distinct applications.

Where Microcement Began

The predecessors of modern micro-cement were cement-based veneer systems, which contractors typically applied up to 3/8 inch (10 mm) thick. Consequently, these thicker systems often created noticeable height differences at doorways and transitions.

Engineers developed microcement as a thinner alternative to solve this problem. Rather than targeting concrete contractors, manufacturers focused on decorative finishers and Venetian plaster applicators. After all, these artisans were already skilled at applying thin, hand-trowelled coatings.

Early Development

More than 20 years ago, I developed my own thin cement-based coating system called E-Crete. At the time, the flooring industry viewed cement coatings only a few millimetres thick with deep skepticism. Instead, most contractors preferred epoxy paint systems because they considered them more durable and proven.

Over time, however, designers eagerly embraced the seamless appearance of micro-cement. As a result, the market expanded rapidly. Today, microcement has become one of the most popular options for resurfacing floors, walls, countertops, and shower enclosures.

Why Microcement Became Popular

The appeal is simple:

Seamless appearance
No grout joints
Modern architectural look
Continuous floor-to-wall finishes
Ability to resurface existing substrates

Specifically, for designers seeking a minimalist aesthetic, microcement offers a sleek look that traditional tile simply cannot match.

The Challenge of Wet Areas

As consumer demand grew, contractors increasingly used microcement in showers and other wet environments. Unfortunately, this rapid market growth also triggered many installation failures.

Many European companies originally designed their systems for rigid substrates like tile, masonry, or concrete. In North America, however, drywall-based construction is far more common. Because these flexible substrates move easily, they often create cracks, allow water penetration, or cause total coating failure.

To overcome these challenges, manufacturers introduced multi-layer systems. Typically, these setups include:

Primers
Reinforcing mesh
Base coats
Decorative coats
Multiple sealer coats

Ultimately, some installations require six to eight separate layers before reaching the finished surface.

Dry Areas vs. Wet Areas

In dry applications, microcement installation is generally straightforward:

Prepare the surface.
Apply primer.
Trowel the finish.
Apply protective sealer.

When workers install these systems correctly, failures are relatively uncommon.

In contrast, wet areas are far more demanding. The ultimate success of the system depends on several factors:

Proper waterproofing
Substrate stability
Correct installation procedures
Long-term sealer performance

Unlike traditional concrete, microcement functions essentially as a decorative surface coating. Therefore, its longevity depends heavily on the quality and maintenance of the protective sealer.

Microcement vs. Traditional Plasters

Traditional Venetian plaster is primarily a wall finish designed for decorative purposes.

On the other hand, microcement bridges the gap between decorative plaster and heavy-duty flooring systems. It achieves this by providing:

Greater surface durability
Floor compatibility
Shower applications
Seamless floor-to-wall transitions

Indeed, this versatility explains its growing popularity among architects and designers today.

Industry Challenges

While microcement technology continues to improve, industry-wide standards are still evolving. In fact, different manufacturers use wildly different formulations, installation methods, and waterproofing approaches.

As a result, performance can vary significantly depending on the specific system you select and the skill of your installer.

A Personal Perspective

Currently, one of the main ongoing debates in the industry concerns the long-term performance of microcement in showers.

For instance, Schluter Systems does not currently recommend microcement finishes as part of its standard shower system enclosure recommendations. This caution directly reflects the industry’s lingering doubts regarding long-term waterproof performance.

In my experience, installers achieve the most reliable results through two methods:

Working over properly prepared tiled surfaces, or
Applying the coating over rigid, fully waterproof substrates that minimize movement.

Nevertheless, truly seamless waterproof enclosures remain difficult to create because any movement in the substrate increases the risk of failure.

Conclusion

Microcement has earned its place in modern design because it provides something few other finishes can offer: a seamless surface suitable for floors, walls, and wet areas alike.

However, you should not view it as a direct replacement for traditional tile or concrete. Rather, it is a specialized decorative system that depends heavily on proper substrate preparation, precise installation techniques, and ongoing maintenance.

Although the technology continues to evolve and many projects perform exceptionally well, the industry is still discovering how these systems will compare to traditional tile assemblies over several decades of real-world use.