Range of Application

• Filling of gaps and cavities/voids in masonry and concrete in case of water ingress

• Solidification of highly fissured masonry (e.g. natural stone masonry)

• Anchor head sealing for the rear anchoring of drilling anchors in special civil engineering

• Shaft repair

Properties

• Mixing ratio of 1: 1 to 1 : 10
• Consistency adjustable:
  • Soft
  • Flexible
  • Solid
• Adjustable reaction time

Application

• Injection by 1C pump (2C pump 1:1 mixing ratio)

WEBAC_® 151 – PU injection foam resin with adjustable foam factor

WEBAC_® 151 is a high-grade, universally applicable PU injection foam resin and, for instance, suitable for stopping water ingress in masonry, concrete and natural stone. The adjustable foam is also suitable for sealing water tanks, canals and other hydraulic engineering structures. WEBAC_® 151 can also be applied in shaft construction.

The adjustable foam WEBAC_® 151 is characterized by its low viscosity – at a mixing ratio of 1 : 10 to 1 : 1. Depending on the mixing ratio, the PU injection foam resin reacts to form a surface-dense, firm and elastic to highly flexible, soft and elastic foam and – given free expansion – expands its volume up to 35 times. 

The low viscosity of the adjustable foam WEBAC_® 151 provides for a high capillary activity. It is thus ideal for fast and temporarily stopping water penetration. To ensure a permanent sealing effect, a secondary injection with WEBAC PU injection resins is necessary.

WEBAC_® 151 is an adjustable PU foam

The foam factor of WEBAC_® 151 is adjustable: the reaction start can be adapted by varying the mixing ratio and considering the inherent temperature, the material temperature and the water temperature. Example: at 20 °C, the foam formation starts 8 to 20 seconds after moisture contact.