Sika Waterbar® - Omega Clamped Type
Sika Waterbar - Omega Clamped Type are Ω-shaped, exchangeable clamping profiles based on synthetic rubber for installation in certain tilting flange constructions for the permanent sealing of wide joints. Sika Waterbar - Omega Clamped Type are available without or with additional reinforcement with synthetic fabric, depending on the water pressure to be applied. Designation Sika Waterbar - Omega Clamped Type OK are synthetic rubber based, Ω - shaped clamped profils without additional reinforcement by synthetic fabric.
- Permanent elasticity with high recoverability
- High strength
- Increased stress absorption capabilities by fabric reinforcement
- High deformation
- Resistant to naturally occurring media that are aggressive to concrete
- Resistant to a broad spectrum of chemical agents (specific testing is always recommended for each situation and exposure level)
- Robust cross-sections for handling on site
- Butt jointing by vulcanization possible on site
Usage
Sealing of wide joints with the inclusion of a tilting flange construction designed for the specific requirements.- Sika Waterbar - Omega Clamped Type OK for sealing wide joints with high deformation and low water pressure
- Sika Waterbar - Omega Clamped Type OKB for sealing wide joints with high deformation and high water pressure
Advantages
- Permanent elasticity with high recoverability
- High strength
- Increased stress absorption capabilities by fabric reinforcement
- High deformation
- Resistant to naturally occurring media that are aggressive to concrete
- Resistant to a broad spectrum of chemical agents (specific testing is always recommended for each situation and exposure level)
- Robust cross-sections for handling on site
- Butt jointing by vulcanization possible on site
Packaging
- 20 m rolls on Euro or disposable pallets
- Prefabricated waterbar systems according to size on Euro or disposable pallets
Colour
Black
Product Details
APPROVALS / STANDARDS
Certificates / Testings
- Factory Quality Certificate
- Certificate of Conformity for sythetic rubber quality in accordance with DIN 7865-2
- Other testing as agreed
- CAD production drawings and details for prefabricated Sika Waterbar - Omega Clamped Type systems
Standards / Regulations
- DIN 7865-4
- DIN 18533-1 as relevant
- DIN 18197 as relevant
- Sika Omega vulcanizing instructions
- Operating instructions for Sika vulcanizing equipement
- Sika Method Statement for the installation of Omega waterbars
Chemical Base
Standard design:
OK: Styrene-Butadiene-Rubber (SBR)
OKB: Styrene-Butadiene-Rubber (SBR) + Polyester Fabric
Special design:
OK: Chloroprene Rubber (air side) and Natural Rubber (water side)
OKB: Chloroprene Rubber (air side) and Natural Rubber (water side) + Polyester Fabric
Shelf Life
The product does not decompose if stored correctly
Storage Conditions
-
Stored on the pallets as supplied on a flat base
- For long term storage > 6 months in enclosed areas: The recommendations of DIN 7716 apply. The storage area should be covered, cool, dry, free from dust and moderately ventilated. The Elastomer waterbars must be protected from heat sources and strong artificial lights with an high UV content
- Short term storage > 6 weeks and < 6 months in enclosed areas: The principles of DIN 7716 apply. On construction sites, outdoors: In dry storage, protected by suitable covers from direct sunlight, snow and ice, or any other form of contamination. Store separate from other potentially harmful materials, plant and equipment such as structural steel, reinforcements, fuels etc. Store away from traffic and site roads
- Short term storage < 6 weeks on construction sites, outdoors: Protected from contamination or damage. Protected by suitable covers from strong sunlight, snow or ice etc.
- Vulcanizing materials should be covered and stored in a cool, dry area free from dust and contamination. It is recommended that the stock requirements be coordinated for a maximum storage period of about 6 weeks.
System Structure
Sika Waterbar - Omega Clamped Type OK and OKB profiles are not stock items, as they are all custom made for specific project dimensions and requirements.
|
|
| Total width a (mm) | Radius b (mm) | Thickness of expansion part c (mm) | Water pressure p (bar) | Resulting movement Vr (mm) |
| OK 24 | Elastomer | |||
| 240 | 96 | 8 | 0.1 | 40 |
| OK 30 | Elastomer | |||
| 300 | 156 | 8 | --1) | 50 |
| OKB 24 | Fabric reinforced elastomer | |||
| 240 | 96 | 8 | 3.0 | 30 |
| OKB 30 | Fabric reinforced elastomer | |||
| 300 | 156 | 8 | 3.0 | 45 |
| OKB 35 | Fabric reinforced elastomer | |||
| 350 | 200 | 9 | 3.0 | 55 |
| OKB 41 | Fabric reinforced elastomer | |||
| 411 | 242 | 9 | 3.0 | 65 |
1) Dependent on installation
Vr = Resulting movement (vx² + vy² + vz²) ½
vx In the waterbar plane and transverse to it (expansion or compression)
vy Perpendicular to the waterbar plane (shear transverse to the waterbar)
vz In the waterbar plane and longitudinal to it (longitudinal shear)
Note: Water pressure and deformation affect each other and are dependent on the specific installation situation and the waterbar design selected. The values in the above table apply to a typical situation. Different values may apply when the system design and details i.e. tilt flange construction, exposure stresses etc. and its installation requirements are fully known.
Shore A Hardness
| 62 ± 5 | DIN 53505 |
Reaction to heat storage
| Shore-A hardness change ≤ +8°C | DIN 53505 |
Elongation
| ≥ 380 % | EN ISO 527-2 |
Reaction to heat storage:
| ≥ 300 % | DIN 53508 |
Tear Strength
| ≥ 10 N/mm | DIN 53504 |
Reaction to heat storage:
| ≥ 9 N/mm | DIN 53508 |
Tear propagation resistance
| ≥ 8 N/mm | ISO34-1: 2004-07 |
Maximum Resulting Movement
Compression Set
| ≤ 20% 168 h / 23°C | DIN ISO 815 |
| ≤ 35% 24 h / 70°C | DIN ISO 815 |