LYNVALEL EXP 6 Expanding Foam Tape Instruction Manual
- June 1, 2024
- LYNVALEL
Table of Contents
INSTALLATION
INSTRUCTIONS
EXP 6 Expanding Foam Tape
A pre-compressed joint sealant tape for protection against wind driven rain, as well as providing both thermal and acoustic insulation while remaining permanently elastic to accommodate diurnal and other movement.
General Installation
for pre-compressed sealing tapes
Preparation
Determine the joint width, and any expected movement. Select the correct size
tape from the tolerance dimensions indicated on the box or tape labels.
Helpful tools
Tape measure, trowel or similar flat bladed instrument, scissors/shears or
knife.
Surface preparation
Joint surfaces should be clean from dust, sand, loose particles and other
debris or obstructions.
Expansion times
In general heat increases and cold decreases the expansion process time of the
tape. Not only does the ambient and joint surface temperature play a part in
this but so does the temperature of the tape itself. For this reason the tape
should always be stored at normal “room” temperatures.
The
correct tape size shoulc be selected to accommo-date the joint width plus the
maximum predicted move-ment. See “recommendec Joint width” table.
Application
On vertical joints the tape can be installed from either the top or bottom of
the joint. Starting at the bottom can reduce any accidental stretching of the
tape.
Remove the self adhesive leader strip and using scissors or a knife cut off
the deformed beginning of the tape to form a square end (this should also be
done at the end of the roll). 1 Peal back about 10-20 cm of the release paper
to expose the self adhesive side of the foam tape. To prevent unwanted
expansion do not unroll a large amount of the tape at any one time. 2
Instantly apply the tape into the joint, making sure the visible edge of the
tape is set back into the joint by at least 1-2 mm [seek special instructions
if the joint faces are not parallel). 3 If you are starting, or finishing, at
a blind end to the joint ensure the tape is oversized in length sufficiently
to allow for movement and still form a good tight butt joint between the end
of the tape and the substrate.
When installing the tape into the joint fix the self adhesive side to the
smoothest surface (e.g. window frame] using a trowel, pallet knife or similar
flat blade tool. Take care not to stretch the tape. 4 Continue to unwind the
tape from the roll and peel back the release paper at regular short distances
until the Joint is filled. Remember to oversize the length of the tape in the
joint by 1 cm per metre to allow for accidental stretching and to ensure that
blind ends are correctly sealed.
As the tape is installed it will expand to fill the joint ( time dependant on
temperature) making it self supporting. Any gentle unevenness along the joint
will be accommodated for by the tape expanding into these areas.
Partially used rolls should be tightly secured with the original leader strip,
to prevent the remaining tape from expanding on the roll, and stored for
future use.
Verticat joints – Damp or dusty conditions
On vertical joints if the self adhesive will not support the tape in situ,
due to damp or dusty conditions, the tape can be held in position by a wooden
wedge ( or similar) at regular intervals, until the remainder of the tape has
expanded sufficiently to be self supporting. At this stage the wooden wedges
should be removed to allow all the tape to expand. Cross joints
First fully install the sealant tape to the vertical joint so that it
passes the horizontal joint as a single strip. Then install the horizontal
joints starting, or finishing, at the vertical tape. Always install the
horizontal tape oversized in length at the vertical joint to compress the
vertical tape, forming a good tight butt joint between them. The vertical tape
should not expand beyond its tolerance dimensions. Butt joints
The sealant tape can be jointed to form a weatherproof junction in long
runs by forming a tight butt joint. Ensure both ends of the joining tapes are
cut square to match each other exactly. Oversize the length of each tape to
make sure that there is sufficient pressure at the ends of the tape to form a
tight joint even after accidental stretching has been compensated for.
Instatling assorted frames
When installing window or door frames make sure you measure the length of
the joint (aperture), not the length of the frame. Always oversize the length
of the tape to compensate for accidental stretching and to form tight butt
ends. Horizontal tapes should be installed prior to vertical tapes. Never
continue the tape around the corner of the frame as a single piece. Always fix
the tape on each side separately. Always fix the adhesive of the tape to the
smoothest / dust free surface [i.e. the frame). If installing the tape to the
frame [in part or whole] prior to putting the frame in the aperture, install
the tape (where time and temperature allow) from the centre of its length so
that the allowance for stretching ise qual. Once installed spacers can be used
to centre the frame to obtain the correct tape compression on all sides. The
details and information given in this literature are based on best current
knowledge. They are intended to serve as general information only and it is
advised that the user conducts their own tests for their specific set of
conditions to determine the suitability of the product for its proposed use.
No warranty or liability is given or implied regarding any part of these
instructions or details, or the completeness of the information. We reserve
the right to modify, or change, the specifications and information without
advance notification. All goods are supplied subject to our standard
conditions of sales, copies of which are available upon request.
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>