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Your windows will need more regular
maintenance if they are exposed to strong
sunlight on South facing facades, if you live
in a marine or industrial environment, or if
you have high levels of internal humidity.
Resin.
Wood is a natural product containing resin. Beads of crystallised resin can be removed by
gently rubbing with a cloth dampened with meths. Do not rub too hard, a better result comes from rub-
bing moderately with meths several times. Immediately after rubbing wipe off the resin and meths with
water. Larger beads of resin may need months to crystallise before they can be scraped off and finally
wiped with meths. Yellowing due to the knots fade gradually with age.
How to care for your windows to ensure warranty
The correct cleaning and maintenance of your windows and doors will keep them looking good and ensure they will resist
even the harshest weather conditions for years to come. Please observe the below instructions to make sure, that the product
warranty is maintained.
Handles and ironmongery
(e.g. hinges, fittings, screws...). Once a year all ironmongery should be cleaned, inspected and
moving parts lubricated with acid-free oil where shown in this User Guide, illustrated by .
Friction stays should be adjusted where required, but never oil as this will impede the friction!
Gliding rails may where necessary be sprayed with a teflon-based lubricant (do not use common mineral based oil).
In harsh environments, ironmongery must be inspected and cleaned at least 2 times per year.
Please note: Surface corrosion is not necessarily detrimental to the operation of the ironmongery. The product warranty applies
to lack of function and is conditional upon the stated maintenance instructions.
Cleaning.
Window glazing, sash and frame should be cleaned with a soft cloth or soft bristle brush and luke warm water with
a few drops of mild detergent - detergents must not contain solvents or abrasives. Hard brushing, scrubbing or the use of
steelwool will produce scratches and must therefore be avoided.
To dry the window, use a window scraper, or wipe with a slightly damp Chamois leather or fine cloth. Traces left on the glass
after removing stickers or glue can be cleaned with meths or other alcohol based substances, and marks from suckers can be
removed with a cleaning agent for glass ceramic hobs - care must be taken to avoid contact with other parts.
The external window sash
is made from aluminium with a powder coated finish. It will need cleaning at least once a year
with a soft cloth or soft bristle brush and luke warm water with a few drops of mild detergent. Black stripes from gaskets will
be harder to remove, if allowed to sit for long. Materials such as paint, wet concrete etc. must be washed off immediately. A
scratch will not affect the durability of the sash as the aluminium will form a natural layer of oxide. Scratches in the aluminium
can be repaired with repair lacquer, but differences in colour may occur.
The window frame
is manufactured from pine which has been coated with a 100% water-based acrylic lacquer or acrylic
paint. The internal frame should be dusted and wiped clean regularly. The glazing bead, weather seals and gaskets should be
cleaned using a damp cloth.
A break of the surface treatment on either side of the frame, must be repaired promptly. The surface treatment should be
checked once a year. Should a repair be required to the wood frame, use a water-based acrylic paint or acrylic lacquer - avoid
getting paint on the seals, gaskets and glazing beads.
Masking tape.
If using masking tape, we recommend 3M™ Masking Tape 201E. Ensure the tape is removed as soon as pos-
sible, and before the paint has dried.
Repair paint or lacquer
can be purchased from VELFAC After Sales Service Department. To order the original colour please
state the order number, see page 27.
