Armstrong DLW
Linoleum
Installation
3
6/Installation
It is recommended that linoleum is fully adhered
throughout. With this the operational guidelines of
the adhesive manufacturer should be followed.
Selecting the correctly notched trowel as well as
the basic rubbing-in procedures are vital elements
to ensure that the adhesive is correctly transferred
to the material backing. Lift up the tiles to check
that the adhesive is spread on the underside,
when the work is being carried out.
6.1 Rolls
Rolls should be folded back and adequate adhe-
sive is to be applied to the floor. The rolls should
be laid in sequence onto the area where the
adhesive has been spread, within the time that is
specified by the adhesive manufacturer and then
immediately rubbed in or rolled. This will depend on
the room temperature and air moisture
as well as
the absorbency and dampness of the subfloor.
When rolls are being laid in corridors, they are to
be folded back crossways. During the laying pro-
cedure, no pockets of air should be allowed to
remain and these should be pushed out of the
sides. Any hollow spots found when tapping down
on the covering with a hammer
, can be pierced
and the air then pressed out.
6.2 Tiles
After the adhesive has been applied, tile laying be-
gins with the predetermined first line of tiles. With
large rooms, laying of the tiles in stages is recom-
mended in order to avoid any misalignment. When
applying the adhesive to the under side, the tiles
are to be carefully smoothed or pressed on. It may
be necessary to repeat this process.
Trowel
Amount
Adhesive
notching
required
2 component dis-
persion adhesive
B1
400-500 g/m
2
3
7/Welding of seams
As per Code of practice 2/93 of the T
echnical
Committee for Architectural Adhesives (TKB) in
the Trade Association of the Adhesives Industry in
Düsseldorf, the sealing up of joins with welding rod
is always to be recommended. This is particularly
applicable for areas where wet cleaning and/or
basic cleaning is carried out frequently and with
flooring bases that are sensitive to damp. The
welding operation itself is carried out either with a
hand-welding device or automatic welder. This is
done basically after the adhesive has bonded, e.g.
48 hours after laying (see recommendations of the
adhesive manufacturer). Sealing the joints too soon
can lead to changes in the adhesive in the area of
the join due to the effects of heat, and this may
impair adhesion.
The flooring joint should be grooved with a groov-
ing tool and jointing plane to a depth of about 2/3
of the thickness of the floorcovering. The groove
should then be cleaned carefully. The width of the
join should be around 3.5 mm.
Armstrong DLW weld rod can be applied using a
hand-held welder with a 5mm diameter quick
welding jet attachment. Operating temperature is
around 400-450
°C, and the running speed about
2.5-3 metres per minute. The protruding part of
the weld rod is removed in two operations: imme-
diately after application the weld rod is removed
while still warm using the crescent-shaped cutter
and the attached removal slide; once the weld rod
has cooled the weld rod is removed flush to the
upper edge of the covering using the crescent-
shaped cutter.
Note: With linoleum that is not exposed to light
(see B
C
veiling), there can be differences in colour
between the rolls and the welding rod. The colour
of the covering should be compared with that
of the welding rod after the veiling process has
completed.
3
8/Armstrong DLW Korkment as
an underlay
Korkment is the only insulation underlay recom-
mended for Armstrong DLW Linoleum. Armstrong
DLW Korkment can be installed on all prepared
substrates. The direction of the sheet can be the
same as that of the main floorcovering. Seams
should be offset by at least 50 cm. Korkment may
also be installed at right angles to the linoleum sheet.
Seams may be formed by a so-called double-cut,
using a hooked blade run along a straight-edge.
Linoleum dispersion adhesive or 2K dispersion
adhesives are used for glueing down. The amount
of adhesive required depends on the thickness
of the floorcovering and its subsequent use. The
floorcovering should only be installed after suffi-
cient time has elapsed to allow the adhesive to
bond fully. For floors subjected to heavy wear (in
hospitals, for example), Korkment can be installed
with the jute backing facing upwards.
Recommended adhesives for Armstrong DLW
Korkment
Trowel
Amount
Adhesive
notching
required
Powder-
adhesive
B1/B2
400 – 600 g/m
2
2 component dis-
persion adhesive
B1
400 – 500 g/m
2
Dispersion
adhesive
B1
300 – 400 g/m
2
