DAKORIT® Bituflex 20B

Properties

• elastic
• sprayable
• highly adhesive
• ageing and UV-resistant
• heat and cold-resistant

Applications

• Clarifiers, reservoirs and storage basins in hydraulic engineering
• Masonry and concrete surfaces in contact with the ground
• Bitumen polymer roofing membranes
• Fiber cement panels
• Balconies and floor slabs under screeds
• Flat roof waterproofing

Composition

• bitumen
• polymers
• emulsifiers
• functional fillers

Substrate

Properties/tests

• The substrate must be clean, firm and even.

Pretreatment

• Remove dirt deposits by steam blasting or mechanically.

Processing

Processing

• As a primer, dilute 20 % with water.
• Apply with roller, roofing broom, brush or with peristaltic pump PP 99.
• When used in asphalt construction, application can also be carried out using an application vehicle with rubber scraper.
• In particularly stressed areas or areas at risk of cracking, apply DAKORIT Bituflex 20B at least twice and embed in the first coat of DAKORIT DV110 89V (e.g. water change zones or roof areas without a slope).

Cleaning the tools

• Clean tools immediately after use with water.

Notes

• Roofs with poor drainage (puddling) are likely to have increased deposits of dust, leaves, plant seeds and the formation of algae and moss. When the puddles dry out, high surface tensions occur due to the shrinking of the swollen deposits. This results in cracks (notch stresses), which can be transferred to the waterproofing layers below. These roof areas are “particularly stressed areas" which must be treated accordingly.
• Maintain a processing temperature of +5 °C to +35 °C.
• DAKORIT Bituflex 20B must be protected from rain during the drying phase.
• Fresh material can be dissolved with water.
• Low temperatures and high humidity slow down the drying process and reduce the coating's resilience.
• Avoid exposure to water from running water (negative water load).