thick cold applied solvent based bitumen, reinforced with tough inert
fibres, which cures to provide a non-trafficable, black, semi-flexible
of concrete, blockwork, renders/screeds, compressed and fibrous cement
sheeting, timber and metal substrates in external areas only. Suitable
for waterproofing water storage tanks, ponds, retaining walls, planter
boxes, roofs, gutters, downpipes and flashings. As an anti-corrosion
coating or to suppress noise/vibration, such as the underside of cars.
To repair malthoid type bitumen roofs.
Ensure all surfaces are sound,
dry, free of dirt, grease, curing compounds, release agents, paint and
any other loose or contaminating materials. Application of the product
onto damp surfaces is not advisable as it will minimise the product's
adhesion capabilities to that surface and extend the curing time.
surfaces such as new galvanised metal/formed concrete should be
mechanically roughened so to avoid adhesion problems to the substrate's
surface. Alternatively, allow new metal surfaces to weather for at least
3 months before coating. Remove loose rust and scale with a wire brush,
whilst severely rusted substrates should be treated with a rust
Application of Brushable Duraseal
is achieved using a stiff brush. This application can be made easier in
cold conditions if the Brushable Duraseal is placed in a hot water bath.
Brushable Duraseal, when applied at the rate of 1L / m2 will give a 1mm
wet coat, and 0.7mm dry coat thickness. When applied at the rate of
1.5L / m2, it will give a 1.5mm wet coat, and 1.0mm dry coat thickness.
When applying Brushable Duraseal over surfaces where there are holes or
cracks greater than 1mm, a reinforcement matting, needs to be
incorporated i.e. open weave polyester matting. Initially apply a coat
of the Brushable Duraseal around the area to be repaired. Next embed
reinforcement matting in the first coat, ensuring the matting
'wets-out', and then apply a second coat of the Brushable Duraseal. When
applying Brushable Duraseal at a right angle junction (i.e. wall-floor
junctions), across cracks or movement joints, a suitable
fillet/bond-breaking system needs to be initially installed. Further,
appropriate reinforcement matting needs to be incorporated in these
the Brushable Duraseal to cure for at least 48 hours at 200 C before
exposing the membrane to any moisture. When Brushable Duraseal is to be
applied in buried situations such as retaining walls/planter boxes,
allow 3 - 10 days to cure before installing a protection
sheeting/drainage cell system e.g. fibrous cement sheeting prior to
back-filling. If over coating the Brushable Duraseal with other
products, initially ensure compatibility and allow the Brushable
Duraseal to cure for at least 7 days at 200 C. When Brushable Duraseal
is used in enclosed areas or for tanking purposes such as drinking water
storage tanks. Allow the product to cure for at least 2 weeks at 200 C
and on the provision there is good ventilation. Where the Brushable
Duraseal is used in drinking water tanks, ponds etc. Upon the product
having cured, it is advisable to rinse the coated area with water, which
is to then be discarded prior to being filled with fresh water.
The curing time of the Brushable Duraseal is dependent on the site and
climatic conditions. Therefore in cold/adverse site conditions the
curing time prior to the product being buried, protected or put into
service may have to be extended.
Brushable Duraseal is for external use only. Delay
external applications when inclement weather is imminent. Brushable
Duraseal is not suitable for waterproofing areas where negative
hydrostatic pressure exists. Brushable Duraseal will degrade if exposed
to ultra violet/sun light; therefore it must be over coated when
applied in such environments. Ormonoid Silvershield can be used to
overcoat Brushable Duraseal, having allowed it to cure for a week.
Brushable Duraseal is used to waterproof retaining walls/planter boxes,
a suitable protection sheeting system such as fibrous cement sheeting
must be installed prior to backfilling, to prevent the membrane from
being pierced. Do not use Brushable Duraseal to waterproof planter boxes that will contain plants with aggressive roots.
Duraseal is classified as a dangerous good. Normal good work practices
should apply during use, e.g. the wearing of gloves and safety glasses.
Depending on application and the porosity of the surface, 20L will cover 20m2 when applied at the rate of 1L / m2.
Available in 4, 20 litre containers
Whilst wet, tools and equipment can be cleaned with mineral turps.
Brushable Duraseal has a shelf life of up to 12 months in unopened containers stored in a cool, dry place