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Application

  • Can be applied onto all types of concrete.
  • Good bond to most sheet membranes and steel.
  • Suitable for all types of tunnel designs.
  • Well suited for underground structures with complex profiles and geometry such as stations, escape and access tunnels, utility caverns, cross passages and tunnel intersections.
  • Enables tunnel design with composite shell lining to reduce excavation cross-section and lining thickness, and is especially suited to tunnel rehabilitations.
  • Compatible with traditional waterproofing methods, enabling interface solutions with other systems.

Description

MasterSeal 345 spray applied in a sandwich structure between two concrete/ cast concrete layers, creating a double-bonded composite shell lining. It is flexible and has very high bond strength properties on both sides of the membrane. This creates excellent watertightness and acts as an alternative to conventional waterproofing sheet membranes.

Features and benefits:

  • Fast-curing.
  • Easy to use, only addition of water needed.
  • Application by spraying with simple equipment.
  • Elasticity of 80–140% depending on temperature.
  • No toxic components.
  • No classification needed for transport.

Applications:

  • Can be applied onto all types of concrete.
  • Good bond to most sheet membranes and steel.
  • Suitable for all types of tunnel designs.
  • Well suited for underground structures with complex profiles and geometry such as stations, escape and access tunnels, utility caverns, cross passages and tunnel intersections.
  • Enables tunnel design with composite shell lining to reduce excavation cross-section and lining thickness, and is especially suited to tunnel rehabilitations.
  • Compatible with traditional waterproofing methods, enabling interface solutions with other systems.

General information
Color

light brown

Features

Fast curing , Easy to use, only addition of water needed , Application by spraying with simple equipment , Elasticity 80% to 140% between -20 0C and +20 0C , No toxic components - No classification needed for transport,

Uniclass 2015
Water-dispersible polymer waterproof coatings (Pr_35_31_68_96)Primary
Specification data - Water-dispersible polymer waterproof coatings
Product Reference

MasterSeal 345

Standard product features

Technical characteristics:

  • Appearance: Light brown powder.
  • Water pressure resistance (max): 15 bar.
  • Bulk density (+20°C): 590 g/l ± 100 g/l.
  • Application thickness: 3–6 mm.
  • Application temperature: +5°C to +40°C.
  • Failure stress (at +20°C at 28 days): 1.5–3.5 MPa.
  • Failure strain (at +20°C, at 28 days): >100%.
  • Bond strength to concrete (28 days): 1.2 ±0.2 MPa.
  • Flammability (in accordance with DIN 4102-B2): Self-extinguishing.

Digital objects
PlatformCompatibleVersionCertified to
Revit
Revit 2015 2 1.3
IFC
IFC2X3 2 1.3
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