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Is S1 or S2 tile adhesive better?

Many tile adhesives have an S1 or S2 rating, but what’s the difference? Summary: Flexibility, water resistance, bond strength, uses cases, and cost.


 S1: S1 adhesives are more flexible and are suitable for tiling applications that may experience some movement, such as underfloor heating systems or substrates with slight expansion and contraction.

 S2: S2 adhesives are even more flexible and are more suited to applications that have more movement and / or vibration for example, floating floors or tiling on to tongue and groove floorboards.

Water Resistance

 S1: S1 adhesives offer good water resistance and can be used in wet areas like bathrooms and kitchens.

 S2: S2 adhesives provide higher water resistance and are ideal for submerged or permanently wet areas, such as swimming pools. Also can help with frost resistance

Bond Strength

S1: S1 adhesives offer a strong bond and are suitable for most standard tiling applications.

S2: S2 adhesives provide an exceptionally strong bond and are often used for heavy or large format tiles.

Use Cases

S1: S1 adhesives are versatile and can be used in various tiling projects, including wall and floor tiling, indoors and outdoors.

S2: S2 adhesives are typically reserved for more demanding applications, such as commercial projects or areas with extreme conditions.


S1: S1 adhesives are generally more cost-effective and suitable for most residential tiling projects.

S2: S2 adhesives are usually more expensive due to their specialised properties, making them a choice for specific, high-performance applications.

The choice between S1 and S2 tile adhesives depends on the specific requirements of your tiling project. S1 adhesives are versatile and cost-effective for most residential applications, while S2 adhesives are best suited for demanding or extreme conditions where enhanced flexibility, superior bond strength and water resistance are essential.

Go here to see a good range of popular S1 tile adhesives

Or view the for the enhanced S2 tile adhesives

Bulk Buy or Pallet deals can be ordered through the web shop or for custom deals through email / phone / or chat.

Some popular brands are:

Tilemaster Adhesives

Brit Adhesives


About Buy The Pallet

We are a specialist company specialising in bulk-ordering, giving you access to great prices delivered to site.

Our bulk buy business means you don’t need to use your time phoning companies to try and get a deal – all our deals are on our online shop here. We do it this way to make it easy.


Buy The Pallet - Tile Adhesive and Floor Levellers Discount Store

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Phil Down
3 hours ago

They actually answered the phone, were polite, knowledgeable and the order was delivered in full and on time. Would fully recommend both on price and service. Thank you.

3 weeks ago

BTP very helpful in supplying a pallet of floor leveller. I needed it on the Saturday, but didn’t want it sitting on the driveway for several days. I called and they recommended ordering for Thursday to give a day’s grace in case of any delivery issues. In the event the pallet arrived on Thursday as requested. Reliable and good value

Gary Harper
2 months ago

Great service, great price and great communications. We will definitely use Buy The Pallet again

Adrian W
4 months ago

Great service and delivery! Ordered all that I needed in one go and it was delivered to the back door wrapped and protected from the snow! Pallet even made it so that the goods were dry off the ground.

Stephen Tucker
4 months ago

Great customer service and at an unbeatable price. All delivered on the day I needed it.

Boon Teo
4 months ago

Great prices with a good ranges of products . Customer Service is excellent!

Max Simpson
5 months ago

Very helpful!

Neil Salih
3 years ago

Peter Bostock
3 years ago

I purchased a pallet of these and I am very impressed from ordering to receiving my pallet and the delivery guys were very helpful as well .I will definitely recommend and use this company again .Highly recommend

Kev in
3 years ago

Amazing knowledge and great prices! Definitely using these guys on a regular basis for my pallet deals on levellers and adhesive

Rob Faulkner
3 years ago

Fantastic experience with Buy The Pallet. Everything I needed to complete a large flooring project, quick delivery & quality products.

Richard Fairlie
3 years ago

Great service and really good pricing! Super fast delivery and really lovely guy!

Marc. T
3 years ago

Very helpful