PU Injection Foam Resins
WEBAC® B15
- Classic Line
WEBAC® 157
WEBAC 157 is an elastic PU injection foam resin (SPU) with a very fine-pored foam structure. Upon contact with water, this low-viscosity material forms a surface-tight, adaptable foam. It is suitable for temporarily closing, sealing, and filling cracks, cavities/voids, and gaps in masonry, concrete, and natural stone—e.g., in shaft construction and water management structures—and can also be used where there is limited movement of structural components.
![[Translate to English:] Abdichtung von Filigranplattenstößen](/fileadmin/_processed_/2/7/csm_157_1__c4863f6c03.png)
![[Translate to English:] Abdichtung von Rohrdurchführungen](/fileadmin/_processed_/e/8/csm_157_2__e950d8b39e.png)
- Sealing of:
- Junctions between cast in-situ concrete and precast units
- Semiprecast concrete elements joints
- Separation joints in buildings
- Expansion joint tapes with stainless steel rails
- Pipe ducts
- Floor/wall connection
- Filling of cavities/voids in masonry
- Sealing of anchor heads in special civil engineering
Properties
- Polyurethan-based injection foam resin
- Fine pored and elastic foam structure
- Low expansion pressure
- Adjustable reaction time (accelerator WEBAC B15)
Techical Data
| Density, 20 °C DIN ISO 2811 | Comp. A | ≈ 0.98 g/cm³ ≈ 1.1 g/cm³ | ||||||
| Pot life WEBAC test specification based on DIN ISO 9514 | 30 °C > 120 min | 23 °C >120 min | 12 °C ≈ 120 min | |||||
| Application temperature Building structure and material | > 5 °C | |||||||
| Foam reaction Start End | 30 °C ≈ 15 s ≈ 70 s | 20 °C ≈ 20 s ≈ 80 s | 12 °C ≈ 25 s ≈ 90 s | 5 °C ≈ 40 s ≈ 120 s | ||||
| Expansion | ≈ 15-fold |
Downloads & Documents
Technical Data Sheets|PDF
WEBAC® 157
Direct download:
Safety Data Sheets|PDF
WEBAC® 157 Comp. A
Direct download:
Safety Data Sheets|PDF
WEBAC® 157 Comp. B
Direct download:
Related Products
- View details
WEBAC B15 is a universal accelerator for PU injection foam resins and PU combination injection resins. It shortens the foaming reaction time of these resins and is particularly recommended for use at low temperatures.
Injection Packers
WEBAC® Injection Packers
- Classic Line
- Consolidation Line
View detailsWEBAC injection packers are filling nozzles that serve as a connecting element between the injection pump and the structural component. They are available in various designs—such as Drill hole packers or surface packers—depending on the type of injection material and the requirements of the structural component. The packers are characterized by secure attachment within the structural element as well as high pressure and corrosion resistance (stainless steel or aluminum versions).
