MasterSeal 345

ELASTIC, WATERPROOFING MEMBRANE FOR SPRAY APPLICATION IN A SANDWICH STRUCTURE WITH SPRAYED OR CAST IN-SITU CONCRETE

Description

MasterSeal 345 membrane is a sprayable membrane for waterproofing concrete structures. MasterSeal 345 membrane is spray-applied between layers of sprayed or cast-in-place concrete or as a standalone membrane.

Uses

Cast-in-place or precast

Composite designed sandwich structures (concrete/membrane/concrete)

Underground structures with complex profiles and geometry

Bonds to steel and most sheet membranes and enabling interface solutions with other waterproofing methods

Advantages

Dry-process material, ready-for-use

Elasticity 80-140% between -20 and 20 ºC

Fast curing – in 4 to 6 hours (depending on environmental conditions)

No toxic components

Environmentally preferable

Easily applied by spraying with standard equipment

Two-sided bond with sprayed concrete allows for composite behaviour

Fast curing prevents disruption of construction operations

The fully bonded system provides excellent watertight properties, preventing the development of water migration in both concrete membrane interfaces