Prufe-it Rubberised
Bitumen Waterproofing Coating
Conforms to BS 36990 (1982), B S Code of Practice
C.P. 102 (1973) and has an external A.A. rating in
accordance with BS 476 Part III (1958) and BS Code
of Practice C.P. 144 Part III (1970) when dressed
with mineral chipping
PRODUCT DESCRIPTION
Prufe-It is a
highly effective rubber bitumen emulsion made from
pure refined bitumen and natural rubber latex.
It is applied cold by brush or roller. Though
lightly thixotropic,it has excellent brushing
property.
When dry, Prufe-It
forms a heavy-duty effective water-vapour barrier
that possesses excellent elasticity. Prufe-It allows
for small movement stresses caused by temperature
variations in the building materials to which it is
applied Prufe-It can be used on damp surfaces
enabling work to proceed without interruption.
Prufe-it is used in
the following areas:
Waterproofing
floors, interior and exterior walls, bridge
abutments, culverts, concrete foundations and
brick foundations;
Roof
maintenance work as it acts as a vapour
barrier and an effective adhesive; and
Adhesive for
insulation board expanded polystyrene, cork
tiles, wood blocks/mosaics and linoleum.
Provides a
tough and impermeable membrane that
is moisture-resistant.
Possesses
excellent elasticity to accommodate movements.
Possesses
excellent adhesive property.
Possesses
resistance to extreme temperatures thereby
reduces the risk of floe or embrittlement.
Possesses
light thixotropism thereby easing brush
application where thick layers are required.
APPLICATION PROCEDURES
Surface
Preparation:
The surface
should be clean and free of loose,
flaky materials, oil, grease and other
contaminants.
Though highly
suitable for damp surface application, but
standing water on the surface must not be
allowed.
Appication:
Stir
thoroughly before use.
Apply Prufe-It
onto the prepared surface by brush
or roller.
Dip brush or
roller in water and soften the bristles before
use.
Apply brush
strokes evenly in one direction preferably with
a soft fibre broom or soft bristled brush.
Apply
subsequent coats at right angle to the previous
coat.
Apply clean
sand and polythene sheet to the top finishing
coat while wet on wall and floor respectively.
This is to provide a good key for the top screed
and protect against foot traffic.
Wipe off any
splashes of Prufe-It immediately.
PRECAUTION WHEN USING Prufe-It.
Do not dilute
Prufe-it
Do not apply
Prufe-It to water-logged surfaces.
Do not apply
Prufe-It if there is risk of expected
rain or frost.
Do not expose
Prufe-It coating to rain until the coating is
dry.
