MasterSeal M 689 - A high elastic, ultra-fast curing, spray applied 100% polyurea membrane for use in waterproofing applications

Description

MasterSeal M 689 is a solvent free, two component waterproofing membrane. It is highly reactive and can only be applied by special two component hot spray equipment.

Where is MasterSeal M 689 ultra-fast curing polyurea membrane applied?

MasterSeal M 689 is used in a variety of waterproofing applications, especially where a high degree of chemical and mechanical resistance is required.

This includes:

Waste water treatment plants (urban and industrial), both in the inflow and outflow areas.
Sewage effluent pipelines.
Steel and concrete pipes.
Secondary containment bunds in chemical and petrochemical industries.
Additionally MasterSeal M 689 can be applied on:
Flat and architectural roofs.
Horizontal and vertical substrates.
Internal and external areas.
Concrete, cementitious mortar or steel substrates.
Reinforced concrete to protect it against carbonation, chloride induced corrosion or chemical attack in industrial environments.

What are the advantages of a ultra-fast curing, spray applied 100% polyurea membrane?

Spray delivered and ultra-fast curing: enables easy application to form a monolithic waterproofing membrane on simple and complex surfaces.
Rapid curing
Continuous membrane: monolithic – no laps, welds or seams
Excellent chemical resistance.
Waterproof and resistant to standing water.
Fully bonded to substrate: can be applied to a wide range of substrates with the appropriate primer.
High water vapour permeability: low risk of blistering.
High resistance to carbon dioxide diffusion: Protects concrete from rebar corrosion.
High abrasion and impact resistance: Withstand mechanical traffic.
High elasticity and crack bridging capability: o Remains elastic at low temperatures; Tg approx. – 45°C o High durability and protection with reduced cracking due to embrittlement
Thermoset – does not soften at high temperatures
Resistance to root penetration