Full-surface gluing

Additional instructions
Full-surface gluing
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Full-surface gluing with Stauf products | Douglas, Oak
For a successful result it is important to install the floor correctly and to use the
products mentioned here in accordance with the instructions. We therefore
recommend having a floor specialist install the floor. We also recommend that you
carry out on-site tests to ensure that the products are appropriate for the purpose.
1.1 General conditions prior to installation
Before the floor is installed, make sure that the general conditions in the building are
under control and in accordance with Stauf’s and Dinesen’s instructions.
The air humidity must be between 35 and 65% RH and must not exceed 50% RH in
winter. The temperature must be between 18 and 25° C.
The substructure must be straight with a maximum deviation of 2 mm measured
across a 2-metre straightedge.
For all substructures, Dinesen’s recommendations about humidity apply.
For cast substructures:
• Moisture content must not exceed 85% RH. NB: 85% RH corresponds to
approximately 2.0 CM depending on the type of concrete etc. Be aware of any
restrictions in the national standard requirements
• We always recommend using STAUF VPU-155 S primer
For anhydrite substructures:
• Moisture content must not exceed 65% RH
• Do not use STAUF VPU-155 S primer.
Contact Stauf for further advice
For plywood and chipboard substructures:
• Make sure that the sheet/board and its surface is suitable for the purpose
• Moisture content must not exceed 8-10%. In addition, follow Dinesen's general
requirements for humidity and climate, cf. Table 2 in Dinesen's “Before installation”
instructions
• Check that the glue bonds correctly to the surface
• Contact Stauf for further advice
Other substructures:
• Contact Stauf for further advice
If underfloor heating has been cast into the concrete layer, the underfloor heating
must be turned on at an acceptable temperature for at least 30 days before the planks
are installed. With underfloor heating, make sure to turn the heat off at least 24 hours
before gluing. Do not turn on the heat until 7 days after the floor has been glued. Turn
up the heat slowly, following Dinesen’s "Before installation" instructions.
April 2014
Use STAUF VPU-155 S primer and STAUF PUK 455 glue. Follow Stauf’s and
Dinesen’s instructions carefully with regard to:
• Climate conditions
• Grade, evenness and moisture content of the substructure
• Use of tools
• Drying times for filler, primer, mastic etc.
• Mounting and curing times for primer and glue
• Floors with underfloor heating
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In addition, always follow Dinesen’s instructions generally.
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Allow the primer to dry for at least 45 minutes.
3.
Apply 250 g/m² using the same procedure but moving perpendicular to the
direction of the first layer.
4.
Allow the primer to dry for at least 3 hours before installing Dinesen planks.
5.
Check and approve the surface before installing the planks.
1.1.1 Approval of substructure
Before installing the floor, check that the cast substructure lives up to the relevant
guidelines. The substructure must be resistant to pressure and tension, free of
cracks, have sufficient surface strength and be permanently dry, level, clean and free
of anti-adherents, sinter layers etc.
Also check the porosity and grip of the surface as well as the moisture content, room
temperature, air humidity and substructure temperature. The substructure must
be permanently dry. Floors with residual moisture (max. 85% RH) require a vapour
barrier. To create a vapour barrier, use STAUF VPU-155 S primer.
! Note that the drying times stated below apply when air humidity and temperature
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stay within 40 and 50% RH and 18 and 22 ºC.
The planks must be installed within 48 hours after the application of the primer.
! Note that the drying process is slow. It can take several months before the

substructure is dry enough. We strongly recommend that you perform a
destructive test of the cast substructure to check the residual moisture content
before applying the recommended primer. If you are using measuring methods
and units for residual moisture content that deviate from national traditions and
standards, contact Stauf or Dinesen for thorough information. Concrete moisture
can harm the wooden floor.
1.1.2 Preparation of substructure
Before installing the floor, it is necessary to prepare the substructure. The surface
must be clean, have sufficient surface strength and be level, permanently dry and
free of cracks. Depending on the type and condition of the substructure, it may be
necessary to prepare the substructure by mechanical means (mechanical brushing,
sanding, levelling).
If this timeframe is exceeded, sand the surface thoroughly, and apply a new, thin
layer of STAUF VPU-155 S primer, using 100 g/m².
1.1.4 Application of STAUF PUK 455 glue
After preparing the substructure and applying the primer, apply STAUF PUK 455
glue with a notched trowel from Stauf (No. 14).
Make sure to apply enough glue for the planks to bond fully with the substructure.
This takes 1400-1600 g/m². The glue is fully cured after 48 hours.
Rake the notched trowel evenly over the adhesive layer to avoid large concentrations
of glue in one place or too thick layers. Install the planks within the primer’s time­frame
by sliding the planks in and pressing down firmly. Pay attention to the mounting time
of the glue.
Construction joints, expansion joints and other joints must be closed with
appropriate elastic material. Cavities and dents can be filled with appropriate
levelling compound from Stauf. Contact Stauf for further advice.
1.1.3 Application of STAUF VPU-155 S primer
To create a vapour barrier with the primer, carry out the following process:
1.
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Apply 150 g/m² primer as a first coat with a mohair roller. Make sure to apply
the primer evenly, and avoid large concentrations in one place. Alternatively, you
may use a foam roller, a brush or a smooth blade.
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1.3 General installation
Install the planks immediately, except in winter when the planks should be placed in
the room in which they are going to be installed for 24-48 hours prior to the
installation.
Do not combine full-surface gluing with other installation methods. Only glue the
planks themselves to the substructure.
! Never apply glue to the long sides of floor planks!
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It is recommended to use temporary fixing straps to keep the joints tight and hold the
planks in place while the glue cures. Make sure not to damage the edges of the planks
when applying the straps. To ensure a straight line for the rest of the floor, it is
recommended that you install 3-4 rows, allow the glue to dry and then install the rest
of the floor.
Apply weights on the planks during the curing period to ensure sufficient pressure
across the entire floor. Place 15 kg sand bags, buckets with sand or similar weights on
top of the planks. Distribute them evenly with approximately one load per m2 until the
glue has cured. The areas along the edges of the floor and the last installed rows are
particularly important. The floor should not be used until the glue has cured.
Sanding and finishing should not be performed until at least 48 hours after the
full-surface gluing.
1.4 Advice
A Dinesen floor is a unique piece of nature. It is a living material which should be
treated with care. Our instructions explain in detail how you get the best result so the
floor can last for centuries.
These instructions cannot stand alone. For additional information, we refer you to the
general instructions from Dinesen and Stauf. If you need additional advice about
Dinesen floors, you are very welcome to contact us. To order and purchase products in
the maintenance series, please go to webshop.dinesen.com
Please note that we can only offer advice about our own product, and thus, any additional
advice lies outside the service we offer. Other building components and products require a
degree of knowledge and insight that makes it necessary to seek advice from a specialist.
As we have no control over the actual quality of workmanship, materials used and worksite
conditions, these written instructions do not constitute an implied warranty of any kind. The
illustrations in this document are strictly intended as a guide.
We do not accept any liability for printing errors.
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Dinesen
Klovtoftvej 2, Jels
6630 Rødding
Denmark
+45 7455 2140
[email protected]
dinesen.com
Stauf Klebstoffwerk GmbH
Oberhausener Straße 1
57234 Wilnsdorf
Germany
+49 (0) 2739 3010
[email protected]
stauf.de