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WOOD: WARMTH AND RESISTANCE
Parquet and wooden floorboards are amongst
the oldest floor covering: oak, beech, pine,
fir, exotic species. Today, we are seeing
new materials emerging (cork, bamboo) and
floating parquet.
Excellent thermal insulation, wood is resistant
to marking and to wear. Waxing has been
in use for a long time for parquet. The
maintenance constraints associated with
wax, as well as development in chemicals
has led to progress in concepts of protection:
solvent varnishes, emulsions, water based
varnishes, oils, etc…
ORIGIN
OF THE PROBLEMS
1° - Nature of the material.
Wood is, by its very nature, a capillary
material, sensitive to hygrometric changes.
The shore hardness varies according to the
species.
2° - Thickness of wood which can
be sanded. On sheets of parquet
with sections of 27mm held together by a
tongue and groove (majority of cases), only
a few millimetres can be sanded, without
risk of making the groove fragile to the
point of “fragmenting” the parquet. Illustration
below.
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The
amount that may be sanded corresponds
to thickness A
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The
thickness of the groove after several
sandings (in B) is sufficient, the
parquet does not “fragment”.
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The
thickness of the remaining groove
is insufficient, the wood gives,
the groove distorts over the whole
length of the sheet. The parquet
“fragments” and has to be replaced.
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SOLUTIONS
If sanding does not represent a major difficulty,
the choice of the best compromise for protection
must bring together: aesthetics, ease of
maintenance, hardness of the protection,
ease of removing residue of the latter.
1° - Grease solutions
a) : Natural : Solutions
combining oil and wax. The oil impregnates
the material, the wax protects the surface.
The wax and oil can be used separately,
particularly for oil on naturally greasy
wood such as teak. These types of treatment
are generally carried out warm in order
to facilitate penetration.
Advantages : Natural and warm aspect, pleasant
odour, easy to maintain.
Disadvantages : Frequent maintenance. On
the first application, these waxes take
a long time to dry completely (15 days).
Low resistance to chemical damage.
b) Synthetics : Treatment
philosophy is identical to that shown above.
The solvent component shortens the drying
time and eases maintenance.
Application :
Homes, olde worlde shops
2° - Solvent varnishes.
There are varnishes with properties to respond
to all types of requirements: homes, high
volume of traffic, sport, etc….
Advantages : Solvent varnishes have the
benefit of being hard and resistant to abrasion
as well as chemical damage, resulting in
easy maintenance which can be carried out
less frequently.
Disadvantages : Old varnish must
be removed by sanding. Sanding of the residual
varnish requires returning the wood to its
natural state.
Applications : Premises with high
volumes of traffic, homes.
3° - Emulsions : Products
which generally have an acrylic polymer
base, in aqueous phase.
Advantages : Removal by chemical
scouring, therefore no sanding, ease of
application, odourless, quick drying, high
chemical resistance.
Disadvantages : Less resistant
than solvent varnish.
Applications:Given its ease of
application and its low maintenance costs,
emulsion is an excellent compromise for
surfaces with large volumes of traffic which
receives frequent maintenance as a matter
of course.
4° - Vitrifiers : Polyurethane
polymer based products in the aqueous phase.
Very technical products.
Advantages : All the advantages
of emulsion. Odourless, requires no scouring
or sanding, great ease of maintenance, etc….
Disadvantages :Slightly less resistant
than the hardest solvents.
Applications : All premises, all
environments.
Summary :the best compromise at
present.
BASIC SYSTEM® controls all the protection
procedures and products listed above. Your
BASIC SYSTEM.
PARQUET
:
A new lease of life for parquet floors !
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