| |
|
|
|
C.A.S.A.L.'s experience of protective coating systems
for roofs goes back over many years, The Duoprene 2000
Polyurethane system for roofs, installed by C.A.S.A.L.'s
directly employed work force, is capable of extending
the operational life of suitable roofs by up to 20 years.
C.A.S.A.L. have developed many techniques with the system,
particularly on profiled sheeted roofs where sealing of
overlaps and bolt heads only can dramatically reduce the
cost of sealing the structure. |
 |
|
| Standard
colours |
terracotta |
slate
green |
aluminium |
black |
|
|
...because Duoprene 2000 is a single component,
pitch free, liquid applied polyurethane membrane
which does not contain T.D.I. or coal tar pitch
derivatives and is therefore not classified as hazardous. |
|
Coal tar pitch contains certain aromatic compounds
which have been found to be dangerours to health
and T.D.I. is a very volatile isocyanate. Under
current legislation the inclusion of these materials
in any formulations results in hazardous classification.
|
|
Duoprene 2000 is formulated from M.D.I. based polyurethane
prepolymers which have a low volatility and is supplied
as a single component. It has all the advantages
of other systems without any of the in-built hazards. |
|
Duoprene 2000 behaves like a two pack reactive system
because the mechanism of the cure enables it to
cross-link with atmospheric moisture. Liquid application
allows a seamless membrane to cover a whole area,
following any surface undulations. |
|
Duoprene 2000 cures to a permanently flexible seamless
membrane with good adhesion to a wide range of substrates
including felt, asphalt, asbestos, concrete, slates,
tiles, brick, glass and metals. |
|
Duoprene 2000 does not embrittle with exposure to
ultra violet radiation, ageing or weathering, and
hence does not crack or craze as is the case with
more traditional bitumen based products. |
|
Duoprene 2000 is a high build coating designed to
be applied in a film thickness of 0.5mm as an absolute
minimum. It can be brush, spray or roller applied
and has a higher viscosity than a conventional paint
and should not be diluted. |
|
|
|
|
|
