thick cold applied solvent based bitumen, reinforced with tough inert fibres,
which cures to provide a non-trafficable, black, semi-flexible waterproofing
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.
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 treatment/converter.
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 areas.
Allow 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
Duraseal is for external use only.
external applications when inclement weather is imminent.
Duraseal is not suitable for waterproofing areas where negative hydrostatic
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.
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.
on application and the porosity of the surface, 20L will cover 20m2 when
applied at the rate of 1L / m2.
in 4, 20 litre containers
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