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PVE/A Expanding Foam
Use:
Envirograf® PVE/A foam is used for filling
awkward openings and around services, behind door and window
frames. For sealing services that pass through the foam, use
Product 110 (intumescent sleeves).
Performance:
This product has been used in a one hour fire-rated
plasterboard wall with gaps up to 30mm, achieving 123 minutes
integrity at BTC UK. In a fire resistance test employing the
general procedures and principles of BS476 Part 22 (1987),
it achieved an integrity of 130 minutes. The foam is not affected
by UV light.
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Intumescent Pillows
Use:
The pillows are used for packing into gaps around cables and
pipes, and over cable trays. They can be fitted into any size
of opening, and they give permanent or temporary fire protection
and smoke sealing. The pillows are equally suitable for computer
rooms, "clean" rooms, and sterile areas. They can
also be used for overnight protection in areas where work
is in progress, as they can be fitted and removed very easily.
Performance:
This product was included in a fire resistance test that
employed the general procedures and criteria of BS476 Part
22 (1987), and a fire integrity of 128 minutes was achieved.
(compressible type 240 minutes)
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Intumescent Coated Slab
Use:
These intumescent slabs are suitable as a permanent fire barrier
in walls and floors. In large openings, these slabs should
be supported with wire mesh. Intumescent jointing compound
is supplied with each slab. The 100mm thick slab is suitable
for use over door frames, between the frame head and the ceiling.
Where there are cables and pipes, you should also use Envirograf®
intumescent pipe wraps.
Performance:
This product was included in a fire resistance test that employed
the general procedures and criteria of BS476 Part 22 (1987),
and a fire integrity of 240 minutes was achieved.
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Intumescent Mastic
Use:
Envirograf® intumescent acrylic mastic can be used for
filling gaps from 1mm to 60mm wide (for wider gaps, use Envirograf®
Product 40 in the gap before completing the fill with Product
58). After application and curing, a surface skin is formed
that allows painting, but the material remains flexible.
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Intumescent Sponge
Use:
Can be supplied in 1m x 1m and 1m x 2m sheets, or can be cut
to size. The expansion joints are designed to fill gaps between
floors and supporting walls, between walls and steel elements,
and between wall joints. as a non fiberous sponge, which when
in a fire will expand around cables and services, giving smoke,
gas, and fire sealing.
Performance:
This product was included in a fire resistance test that
employed the general procedures and criteria of BS476 Part
22 (1987), and a fire integrity of 138 minutes was achieved.
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Intumescent Expansion Joints
Use:
Envirograf® intumescent expansion joints are used to fill
the cavities or gaps left in buildings to allow for movement,
expansion, and contraction. They can also be utilised around
ducting to accomodate vibration movement, as well as sealing
the top of cable trays that pass through protected parts of
a building.
Performance:
This product was included in a fire resistance test that
employed the general procedures and criteria of BS476 Part
22 (1987), sealing vertical expansion joints of different
width, acheiving integrity and insulation results of uptp
240 minutes
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Intumescent pipe collars
Use:
Envirograf® intumescent pipe collars are easily fitted
to PVC pipes in various situations, owing to the hinge and
pin construction and the swivel-and-bend fixing lugs that
enable surface fixing to ceilings, floors, and walls. The
pipe collars can also be rebated into ceilings or walls.
Performance:
This product was included in a fire resistance test that employed
the general procedures and criteria of BS476 Parts 20 &
22 (1987), and a fire integrity of up to 4 hours was achieved.
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Intumescent Pipe Wraps
Use:
These intumescent wraps are applied to pipes or cable in brick
or block walls and in concrete floors. The wrap is applied
around the pipe or cable to be protected and fastened, using
the self-adhesive fixing tab on the wrap, then it is pushed
down the pipe or cable and into the wall or floor, to leave
it recessed 10mm from the wall or floor surface, which is
then filled level with sand and cement or fire mortar. Envirograf®
intumescent wraps will crush PVC pipes and cables and cool
steel pipes when attacked by fire - they are probably the
most economical way to protect services. A label is supplied
with each wrap to be placed in situ, as an indication to authorities
that the protection has been applied.
Performance:
This product was subjected to a series of fire resistance
tests that employed the general procedures and criteria of
BS476 Part 22 (1987). It was tested on a variety of penetrations
through different types of floors and walls, and a fire integrity
of up to 249 minutes was achieved.
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Intumescent Pipe Sleeve
Use:
Envirograf® intumescent sleeve is used to pass pipes and
services through fire-rated ceilings and walls, where there
is a requirement for a degree of expansion and contraction.
It can be used in brick, block, and concrete walls, as well
as hollow walls and floors.
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Intumescent Multi-Purpose Box
Use:
The Envirograf® multi-purpose box is designed to offer
the most versatile, easily-fitted solution to the problem
of protection of services that pass through ceilings, floors,
and walls.
Performance:
This product was subjected to a fire resistance test that
employed the general procedures and criteria of BS476 Part
22 (1987), and up to four hours of protection can be achieved.
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Fire Barrier Curtain 30min / 60min
Use:
Envirograf® fire barrier curtain is used in roof spaces,
suspended ceilings, etc. The standard barrier can be joined
with intumescent adhesive by overlapping 50mm, with reinforcing
tape available. The cloth is fixed to structural steel, concrete,
or timber by means of steel straps, fibre battens, and/or
steel clips.
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Cavity Barrier
Use:
Use on both the vertical and horizontal faces around window
frames and door frames. Ventilated and non-ventilated versions
have the same fire protection properties. Ideal for use behind
UPVC windows and timber-framed houses as vertical or horizontal
fire barrier.
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Intumescent Air Transfer Grilles
Use:
Envirograf® Metal Grilles type MG (slotted) and type MGL
(louvred) are utilised either side of a ventilation opening
in doors and walls, and they are sold as a set of two grilles.
Matching individual plain metal grille plates are available
for use in non-risk situations. The sets are defined in two
ways: the /D version is for use in situations in which the
risk is double-sided (that is, the opening could be attacked
by fire from either side); and the /S version is for use in
situations in which it has been clearly identified that only
a single side of the opening is at risk. When fitting the
/S version, the intumesced plate is placed on the risk side
and the plain plate is placed on the opposite side of the
opening. Sizes available upto 550mmx550mm
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Intumescent Block Grilles
Use:
Envirograf® block grilles are indicated in situations
where a high protection rating, high air flow, and low maintenance
is required.
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Under Floor Fire Barrier
Use:
Envirograf® underfloor fire barrier is used to protect
decorative plaster ceilings and lath and plaster ceilings
in which the plaster has become loosened from the laths. The
barrier is installed by lifting a few floor boards, then sliding
the barrier between the joists, and finally fixing it with
the battens provided and 40mm clout nails. For fire protection
upgrading of flat lath-and-plaster ceilings in good condition,
see also Envirograf® Product 84.
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