Instructions for Use 3 mm - Varicor

3. GENERAL PROCESSING GUIDELINES
3.1 SURFACE BONDING WITH THE SUBSTRUCTURES
Use uncoated chipboards of density ≥ 650 kg m³ as carrier material.
When coating the carrier material with Varicor ® 3 mm, the underside
must be covered with a 0.8 mm thick HPL board as counteracting plate
and steam barrier. PVAC glue is suitable as a bonding agent, D3 quality
(white glue), e.g. of comp. Kleiberit Type D3, ref. 303.
Before bonding, the individual components must be temporised to room
temperature.
Apply PVAC glue to the chipboard over the whole surface; then lay on
the Varicor ® 3 mm panel and the counteracting plate and place the
bonded panel into the veneering press.
Amount of adhesive: approx. 150 – 180 g/m³
Pressing pressure: approx. 3 kp/cm²
Attention: always press cold
Pressing time: in accordance with the data stated by the
adhesive manufacturer
(approx. 20 – 30 min.)
Due to different expansion coefficients of the various components
to be combined, changes in temperature can lead to a distortion
of the composite material. Screwing the composite panel to the
substructure (e.g. a base cabinet) this effect will be compensated.
Prior to further processing the coated panel, please store them horizontal
in a stock for one hour.
3.2 BONDING VARICOR ® 3 MM WITH VARICOR® 3 MM
A separate, matching colour Varicor® adhesive is available for every
decorative design which enables you to realise jointless and almost
invisible adhesive bonds. Some properties of the two existing types of
adhesive, standard and rapid adhesive, are explained below:
Based on the printed filling date, both types of adhesive will expire as
follows:
At room temperature at approx. 20 °C 3 months
In the refrigerator at approx. 6 °C 6 months
In the freezer at approx. – 20 °C 12 months except cartridge
glue
Standard adhesive:
The following must be ensured to obtain optimum bonding:
Minimum temperature of adhesive, material and room must not be
under 18 °C. Lower temperatures lead to faulty bonds. Bonding agent
dries, but does not harden.
Please observe the hardening times of six hours at 20 °C and/or four
hours at 25 °C before further processing.
Application of the bonding agent on one side is sufficient.
Rapid adhesive:
This adhesive was mainly developed for assembly purposes at building
sites. Processing temperatures at least 13°C.
Please observe the following hardening times:
60 minutes at 20° C
120 minutes at 13° C
For large adhered surfaces, always apply the adhesive to both sides of
the surface to be bonded. Always make sure that the adhesive joints are
thin because the rapid adhesive tends to form bubbles. The adhesive
joints may gleam slightly because the rapid adhesive contains a different
bonding agent than the panel.
Please observe the instructions for bonding enclosed with the
bonding systems.
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