Products
Products
Kayseri basalt and andesite in every finish and format, produced in our own plant in Develi. Every product below can be cut to size and combined with other finishes.
9 products
Basalt
A dense, dark-grey to black volcanic stone with a fine, uniform grain. Kayseri basalt has a declared density of 2,739 kg/m³, low water absorption and excellent frost resistance, which makes it ideal for exterior paving and façades in cold climates.
Custom sizes, thicknesses, profiles and mixed finishes are produced to order from your drawings.
2 products
Andesite
A lighter grey volcanic stone with a subtle speckled texture. Andesite offers a warmer, more neutral tone than basalt, at a similar strength, and is popular for paving, garden walls and façades.
Custom sizes, thicknesses, profiles and mixed finishes are produced to order from your drawings.
EN 1469 · EN 12057 · EN 12058
Technical data
Declared values from the CE Declaration of Performance for Devtaş basalt, tested to European standards.
- Apparent density
- 2,739 kg/m³EN 1936
- Flexural strength (mean)
- 21.37 N/mm²EN 12372
- Flexural strength after frost (mean)
- 20.05 N/mm²EN 12371
- Change after 12 freeze-thaw cycles
- 6.18 %EN 12371
- Water absorption at atmospheric pressure
- 2.19 %EN 13755
- Apparent porosity
- 2.23 %TS 699
- Abrasion resistance
- 6.095 cm³ / 50 cm²EN 14157
- Capillary water absorption coefficient
- 7.26 g/m²·s½EN 1925
- Hardness
- 6 MohsEN 101
- Reaction to fire
- Class A1 (non-combustible)2000/65/EC
- Slip resistance
- Slip-resistant (surface roughness > 1 mm)EN 14231
| Property | Declared value | Test method |
|---|---|---|
| Apparent density | 2,739 kg/m³ | EN 1936 |
| Flexural strength (mean) | 21.37 N/mm² | EN 12372 |
| Flexural strength after frost (mean) | 20.05 N/mm² | EN 12371 |
| Change after 12 freeze-thaw cycles | 6.18 % | EN 12371 |
| Water absorption at atmospheric pressure | 2.19 % | EN 13755 |
| Apparent porosity | 2.23 % | TS 699 |
| Abrasion resistance | 6.095 cm³ / 50 cm² | EN 14157 |
| Capillary water absorption coefficient | 7.26 g/m²·s½ | EN 1925 |
| Hardness | 6 Mohs | EN 101 |
| Reaction to fire | Class A1 (non-combustible) | 2000/65/EC |
| Slip resistance | Slip-resistant (surface roughness > 1 mm) | EN 14231 |
Values are averages from the manufacturer's CE Declaration of Performance (EN 1469 / EN 12057 / EN 12058). Full test reports and the current ISO 9001 certificate are available on request for tender files.
Reference standards
- EN 1469Slabs for cladding
- EN 12057Modular tiles
- EN 12058Slabs for floors and stairs
Certificates
Download the catalogue
PDF · 5 MB
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