MasterJoint PR 689

Pure Polyurea Membrane, Two Components, Flexible, Fast Cure, Spray Applied for Use in Waterproofing Membrane

Material Description

MasterJoint PR 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.
Comply with EN 1504-2

Areas of Application

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

• Waste water treatment facility

• Waste water channels.

• Steel and concrete pipes.

• Secondary area of chemical and petrol industry,

Additional;

• Terraces and roofs.

• Vertical and horizontal surfaces.

• Internal and external areas.

• Concrete, cement based or steel surfaces.

• Prevent concrete surface against carbonation, chloride-induced corrosion or chemical effects in industrial environments.

• Further information please contact to MBT Tech.

Characteristics and Benefits

• Spray delivered and ultra-fast curing: enables easy application to form a monolithic waterproofing membrane on simple and complex surfaces.
  − Application to vertical surface without runs.
  − Easy application to complicated details.

• Rapid curing:
  − Allows early serviceability.

• 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 vapor 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:
  − Remains elastic at low temperatures
  − High durability and protection with reduced cracking due to embrittlement

• Thermoset – does not soften at high temperatures.