BITUMEN TAPES
Bitumen-based expansion and sealing tapes for protecting and sealing joints in road pavements. We deliver throughout the Czech Republic and Slovakia.
What the tapes are for
Bitumen tapes
Expansion or sealing?
Both are bitumen-based and both go into the joint — but each solves a different problem. The expansion tape lets the pavement move. The sealing tape closes it off from water.
Expansion joint tape — absorbs pavement movement
Its job is not just to close the joint, but to allow the pavement to work safely in places where it deforms unevenly, settles, or where construction stages meet. The tape absorbs the stress generated by temperature changes and traffic loading, protecting the surface from cracking.
It is used where stress concentrates. Its flexible structure keeps the expansion joint stable and limits uncontrolled transfer of forces within the pavement structure. It bonds well to bituminous substrates and remains flexible over a wide temperature range, so the pavement can freely expand and contract without the joint losing its seal.
Where it belongs:
- expansion joints between old and new asphalt layers
- connections between layers laid in different construction stages
- contact between the pavement and technical infrastructure elements
- locations with uneven subgrade settlement
- roads with variable traffic loading
Sealing tape — keeps water out
It permanently secures joints, cracks and construction interfaces. It protects critical spots against the ingress of water, fine debris and weathering, which over time lead to asphalt degradation and a weakened pavement structure.
It is made of bitumen and polymers with high adhesion to bituminous substrates — the tape fills the joint and bonds with the surface. Its flexible structure allows it to work together with the asphalt even under heavy loads and changing temperatures. It is applied quickly, without complex equipment or long technological breaks, which makes it ideal for roads in service.
What it delivers:
- permanent sealing of joints and cracks in asphalt surfaces
- protection against water and debris entering the structure
- flexibility under changing temperatures
- compensation of pavement movements caused by traffic loading
- reduced degradation of load-bearing layers and the subbase
- longer pavement life and lower maintenance costs
Comparison of the two products
| Expansion | Sealing | |
|---|---|---|
| Main task | Let the pavement work in a controlled way | Keep water out of the structure |
| Principle | Absorbs stress from temperature changes and loading | Fills the joint and bonds with the surface |
| Protects against | Cracking caused by stress concentration | Water, debris, weathering |
| Material | Bitumen, flexible structure | Bitumen and polymers with high adhesion |
| Typical location | Contact of old and new pavement, stage joints, around infrastructure | Joints, cracks, construction interfaces |
| Thicknesses | 3, 5, 8 and 10 mm | 3 mm |
The tapes do not rule each other out — both have their place on a single job. Where the pavement moves, use the expansion tape. Where it must stay watertight, the sealing tape.
Size overview
| Size (w × h) | Type | Version | Carton | Cartons per pallet | Length per pallet |
|---|---|---|---|---|---|
| 40 × 3 mm | Expansion | with adhesive | 60 m | 24 | 1,440 m |
| 40 × 3 mm | Expansion | standard (without adhesive) | 60 m | 24 | 1,440 m |
| 40 × 3 mm | Expansion | meltable (like a joint sealant) | 60 m | 24 | 1,440 m |
| 40 × 5 mm | Expansion | — | 60 m | 24 | 1,440 m |
| 40 × 8 mm | Expansion | — | 42 m | 24 | 1,008 m |
| 40 × 10 mm | Expansion | — | 36 m | 24 | 864 m |
| 50 × 10 mm | Expansion | — | 36 m | 24 | 864 m |
| 35 × 3 mm | Sealing | without adhesive | 62 m | 24 | 1,488 m |
| 40 × 3 mm | Sealing | with adhesive | 60 m | 24 | 1,440 m |
| 40 × 3 mm | Sealing | with adhesive + sand | 50 m | 24 | 1,200 m |
| 50 × 3 mm | Sealing | without adhesive | 62 m | 24 | 1,488 m |
Where they are used
Connections to kerbs and paving
Sealing the joint between the asphalt layer and a kerb or paved surface.
Manholes and drainage channels
Sealing around manhole covers, gullies and drainage channels.
Tram tracks
Connecting asphalt to the track structure.
Construction joints
Protecting joints against water ingress and pavement degradation.