duraflex® is a two-component, polymer-modified cementitious waterproofing slurry for bathrooms, balconies, terraces, tanks and concrete structures. It is brush- or trowel-applied in at least two coats and can bridge hairline cracks up to 0.3 mm.
2 hours at 10 °C / 1 hour at 20 °C / 30 minutes at 30 °C
Resistant to mechanical stress
3 days
Equivalent concrete cover
180 mm
Pressure resistance
10 bar positive, 4 bar negative
Composition
Non-toxic, contains no chlorides
Brand
a.b.e. Construction Chemicals
Availability
Held in Gaborone Held in Gaborone — collection or local delivery.
Working days exclude weekends and Botswana public holidays, and run from order confirmation rather than from enquiry. Cross-border clearance can occasionally extend a delivery — we will tell you if it does. Tell us your programme date and we will work back from it. Lead times for a.b.e. Construction Chemicals are shown on the a.b.e. Construction Chemicals page.
Where duraflex is used
Bathrooms, showers and other internal wet areas before tiling
Balconies, terraces and haunching
Waterproofing of new and existing buildings, internal and external
Tanks, containers and water reservoirs
Protection and repair of concrete to roads and bridges
Coverage & packaging
Nominal coverage
2 kg/m² per mm thickness, per coat
Minimum specified
2 kg/m²/mm, applied in not less than two coats
Theoretical rate
8 m² per 15 kg kit at 1 mm wet film thickness
Brush application
Three coats, alternate coats at right angles, to 3 mm final dry film thickness
Trowel application
First layer 1 – 1.5 mm on horizontal surfaces
Curing between coats
Minimum 4 hours at 20 °C / 50% RH
Pack size
15 kg kit (11 kg powder : 4 kg liquid)
Shelf life
12 months in original packaging, dry and cool
Note on quantities. Coverage figures are theoretical. Practical coverage is reduced by wastage and by substrate texture and porosity, and varies with the application method chosen. Confirm quantities against the current a.b.e. technical data sheet before ordering.
Specification clause
For architects, engineers and quantity surveyors writing this product into a specification or bill of quantities — the manufacturer's own wording:
The waterproofing compound shall be duraflex®, a two component, polymer modified, cementitious coating applied in accordance with the manufacturer's recommendations, a.b.e.® The coating shall conform to the requirements of EMPA test 235'528, EMPA test 162'475/2 and the UK Water Byelaws Scheme (WRc Listed). The compound shall have a resistance to positive pressure of 10 bar and a resistance to negative pressure of 4 bar.
Reproduced from the a.b.e. Construction Chemicals technical data sheet. Confirm against the current issue before it goes into a tender document.
Before you specify it
The substrate must be sound, clean and free of laitance, oil and loose material.
Pre-dampen the substrate with clean water. Do not apply to a wet surface — the substrate should be just visibly damp, with excess water removed.
Moving cracks, construction joints and junctions generally need separate detailing and cannot be relied on to be bridged by the coating alone.
Practical coverage varies with substrate porosity and texture, so allow for this in ordering.
The full system must follow the current a.b.e. technical specification for the application.
Tell us the substrate, the area and the exposure and we will confirm whether this is the right system, what preparation it needs, and what it will cost.
