Product Details
ARDEX S 1-K
Single-Component Waterproofing Material
- Elastomeric resin-based waterproofing material used under ceramics in interior and wet areas
- Single-component
- Crack-bridging
- Solvent-free
- Ready to use
- Non-drip
- Suitable for trowel application
- Can be applied with a roller


Single-Component Waterproofing Material – ARDEX S 1-K
ARDEX S 1-K is a ready-to-use, elastomeric synthetic resin-based waterproofing material that provides excellent waterproofing under ceramics in interior wet areas. It is solvent-free, non-dripping, and highly elastic.
Usage Areas
For interior applications. Suitable for walls and floors.
Used on wall and floor surfaces under ceramic tiles and panels, in bathrooms, shower areas, around bathtubs, and drain areas. It can also be used in general communal shower areas.
Suitable for waterproofing in wet areas specified in Chapter 7 of the Building Waterproofing Regulation and for pools and water tanks specified in Chapter 8.
Product Type
ARDEX S 1-K is a ready-to-use, solvent-free, elastomeric synthetic resin (polymer) dispersion-based waterproofing product with special fillers and additives. ARDEX S 1-K is easy to apply, lightweight, non-dripping, and splash-resistant. Once dried, it becomes completely waterproof, water-resistant, and highly elastic.
Packaging
Available in 20 kg or 4 kg buckets.
Shelf Life and Storage
Can be stored for approximately 6 months in a dry and cool environment in its original unopened packaging, protected from sunlight and frost.
Fresh Mortar Density
1.5 kg/l
Material Requirement
Approximately 1.1 kg/m² for smooth, even surfaces.
Drying Time
Approximately 6 hours
Suitability for Underfloor Heating
Yes
GHS/CLP Classification
None
GGVSEV/ADR Classification
None
What is ARDEX S 1-K?
ARDEX S 1-K is a single-component elastomeric synthetic resin-based waterproofing material designed for use under ceramics in interior wet areas. It is ready-to-use, solvent-free, and highly elastic.
Where can ARDEX S 1-K be used?
This waterproofing material can be used on walls and floors under ceramics in bathrooms, showers, around bathtubs, and drain areas. It is also suitable for use in communal showers, pools, and water tanks.
How does ARDEX S 1-K improve waterproofing?
It provides strong, flexible waterproofing that bridges cracks, dries quickly, and is easy to apply, ensuring durable and reliable protection against moisture.
What is the mixing ratio for ARDEX S 1-K?
No mixing is required as the product is ready to use straight out of the container.
Do you have any questions about this product?
You can ask your questions about this product by filling out our contact form.