Skip to Content

Schluter All-Set vs Mapei: A Comprehensive Comparison of Thin-Set Mortars

Are you looking for the best thin-set mortar for your bathroom project? There are other thin mortars, and choosing the right one for your project is crucial. Remember, other light mortars are for different uses

How does Schluter All-set stand out from Mapei? Both products are multipurpose thin-set mortars. However, Schluter is in white and gray, usually used in substrates, while Mapei is in bright white.

To get a comprehensive comparison of the two thin-set mortars, keep reading!

Schluter All-Set Vs Mapei: A Quick Comparison Table

Aspects Schluter All-set Mapei
Type Modified thin-set mortar that is Specialized Modified thin-set mortar with polymer
Unique Feature Creates a robust bond coating Suitable in submerged areas
Benefits Has more benefits Fewer benefits
Usages Exterior and Interior Interior and Exterior
Performance Superior Performance High Performance


What are the Differences Between Schulter and Mapei?

For a better understanding of the differences between Schulter All-Set vs Mapei thin-set mortar, we will discuss them under various categories such as:

Product Type

Schluter and Mapei do similar work. Nonetheless, they’re different from each other in terms of composition.

The particular modified Schluter All-Set mortar serves as a bond coat. It is suitable for use within tile applications and Schluter membranes and boards.

Schluter All-Set mortar is easy to use and spread thanks to its smooth and creamy qualities.

 Schluter is perfect for use because it is sag-resistant regardless of how you want to lay your tiles, horizontal or vertical.

In addition, you can use Schluter for both the interior and exterior.

On the other hand, Mapei is available in varieties, but for his comparison, we will use Mapei Adesilex P10 thin-set mortar with polymer. 

It is a multipurpose thin-set mortar made with non-sag properties. The presence of polymer in its formula makes it stronger and more durable. 

It is ideal for marble mosaic, glass tile, and glass mosaic. It is suitable for use in glass tiles, marble, and glass mosaic. In addition, it is ideal for light translucent natural stone.

Therefore, in terms of bond strength, Mapei mortar takes the lead over Schluter, meaning you will get better results if you use Mapei.

Benefits Variation

Installation of tiles on the floor or walls is easier when using Schluter because it spreads uniformly on project sites. As a result, installing large and heavy tiles for both the interior and exterior becomes easy to handle and takes less time.

Contrary to Schluter All-Set mortar, Mapei Adesilex P10 is suitable for regular use, submerged installation, and increased performance because you can mix it with water and Keraply. 

In addition, Mapei produces a controlled color match for consistency and high quality. Besides, you can apply it on a sheet-mounted mosaic.


Schluter mortar can grout in 12 hours. Within 24 hours, it is ready for heavy traffic. This mortar can cover 100 to 200 square feet on different substrates and membranes based on the trowel size.

In contrast, Mapei AdesilexP10 mortar takes much time to dry as it works between 4 degrees Celsius and 35 degrees Celsius. For it to handle heavy traffic, you will have to wait for seven days.

However, after 24 hours, it can handle some traffic. Its coverage is 11 to 24 square feet per 10lbs bag as per the trawler size.


The application of the two thin-set mortars is slightly different. Schluter All-Set is used to install porcelain, ceramic, and stone tiles. In various substrates like plywood, gypsum, concrete, vinyl flooring, etc., you can use Schulter.

You can use Mapei Adesilex to install interior and exterior tiles. You can also use it to install ceramic, glass tiles and porcelain, among other surfaces. It is ideal with glass tiles and also works well in submerged areas.

What Is a Thin-Set Mortar?

We have discussed the difference between two thin-set mortars- Schluter vs Mapei. However, it may be your first time encountering such a term, and you barely know much about it. We’ve got answers for you. Just keep reading!

So, what does Thin-set Mortar mean? A typical sand, cement, and chemicals blend are usually gray or white. The thin mortars contain some polymer or latex additives to boost bonding strength.

 How many Types Thin-Set Mortars

Thin-set mortars don’t do the same work. Nevertheless, they’re into two categories- Unmodified and Modified. Sounds even more complicated? Never mind!

Unmodified Thin-set Mortar

The dry-set mortar is another name for unmodified thin-set mortar. It comprises sand and Portland cement together with water retention agents. In addition, you can mix it with water for consistency. 

It relies on water hydration to attain strength.

Modified Thin-Set Mortar

This type of mortar has similar components to the unmodified version but with some added polymers like latex in either powdered or liquid form. The core purpose of the additional additives is to:

  • Enhance the mortar performance
  • Increase flexibility
  • Improve the mortar’s strength.

In contrast to the unmodified version, whose strength improves by hydration, it gets robust as it cures.

When Can You Apply Thin-Set Mortar?

Are you setting tiles over surfaces/materials such as plywood, drywall, and OSB? Modified Thin-set mortar is the best choice to use. However, if you want to set tiles over a membrane, you’re discouraged from using it because modified mortar takes longer.

The curing time can be between 14 to 60 days, per the Tile Council of North America, which explains why it is not ideal for over-membrane set-up. 

Using it regardless causes improper curing as it gets sandwiched between two impermeable materials, which prevents fast drying as moisture can’t escape.

In such a case, it is best to use the unmodified Thin-Set mortar as it dries very quickly due to its ability to hydrate and cure within 24 hours.

Is Schluter All-Set Mortar Ideal for Installing Tiles Over a Membrane?

Yes. For the reasons explained above, modified Thin-set mortars aren’t encouraged in such a case—however, Schluter thin-set mortar is designed for beneath and over-applications, including heated floors. The multiple lab tests resulted in a modified mortar capable of drying within 12 hours.

Which of the Thin-Set Mortar Is Best For You?

The Schluter All-Set mortar performs better than the Mapei Adesilex P10 premium Thin-set mortar for the two thin-set mortar. Therefore, Schluter is better if you want the perfect mortar for your tile installation project.

Schluter All-Set is a top-performer mortar that is modified. It is ideal for membrane and board use but works well with tiles too. Mapei Adesilex P10 is a modified thin-set mortar that is premium grade because it contains polymer in its components.

Conclusively, after comparing the two thin-set products, you can now make a wise and informed choice. Good luck!