TECHNOELAST MOST B
SBS-MODIFIED BITUMEN WATERPROOFING MEMBRANE FOR BRIDGE AND FLYOVER CONSTRUCTION
SBS-modified bitumen membrane TECHNOELAST MOST B is designed for waterproofing of reinforced concrete slab of carriageway on bridge constructions and other traffic areas. It can be also used as a single-layer waterproofing of the foundation.
TECHNOELAST MOST B is a waterproofing material produced by two-sided placing of a high-quality polymer-bitumen binder on a polyester base. The material has additional durability and resistibility features thanks to special formula of polymer-bitumen binder and increased thickness.
On the bottom side the material is covered by a polymer film with special graphic elements, melting of which indicates the proper material heating. On the top side the material is covered by polymer film.
Waterproofing material TECHNOELAST MOST B has the following advantages:
- High puncture resistance and resistance to foot marking
- High quality polyester reinforcement
- An additional durability and resistibility features thanks to the special formula of polymer-bitumen binder and increased thickness

Product technical data
| PROPERTIES | TEST METHOD | TECHNOELAST MOST B 3.5 mm | TECHNOELAST MOST B 4.5 mm |
|---|---|---|---|
| Protection of the top side | polymer film | polymer film | |
| Protection of the bottom side | polymer film | polymer film | |
| Length, m | EN 1848-1 | ≥ 10.0 | ≥ 10.0 |
| Width, m | EN 1848-1 | ≥ 1.0 | ≥ 1.0 |
| Straightness, mm | EN 1848-1 | ≤ 16 | ≤ 16 |
| Mass per unit area, kg/m² | EN 1849-1 | ≥ 4.1 | ≥ 5.3 |
| Thickness, mm | EN 1849-1 | 3.6±0.1 | 4.6±0.1 |
| Type of carrier | polyester | polyester | |
| Tensile properties: maximum tensile force L / T, N/50mm | ASTM D5147 | ≥ 600 / ≥ 600 | ≥ 600 / ≥ 600 |
| Tensile properties: elongation L / T, % | ASTM D5147 | 40±20 / 40±20 | 40±20 / 40±20 |
| Tear strength L/T, N | ASTM D4073 | 500±150 / 500±150 | 500±150 / 500±150 |
| Softening point, °C | ASTM D36 | ≥ +110 | ≥ +110 |
| Flexibility at low temperature, °C | EN 1110 | ≤ -20 | ≤ -20 |
| Flow resistance at elevated temperature, °C | EN 1110 | ≥ +100 | ≥ +100 |
|
Watertightness
at 0.3 MPa for 24 hours |
EN 1928 | Pass | Pass |
| External fire performance | EN 13501-5 | Froof | Froof |
| Reaction to fire | EN 13501-1 | Euroclass F | Euroclass F |
| Dimensional stability, % | ASTM D5147 | 1.0 | 1.0 |
| Adhesion of granules, % | EN 12039 | NPD | NPD |
| Visible defects | EN 1850-1 | Pass | Pass |
| Water vapor transmission properties | EN 1931 | NPD | NPD |
| Dangerous substances | - | Does not contain dangerous substances | |