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Applications &
Instructions
1. Levelling, Bonding and Caulking
Teak Decks
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Description
of Application
Teak has been used
for hundreds of years as a decking material for ships
and boats because of its anti-rot properties.Teak is a
beautiful material in its unfinished state, but requires
an elegant solution for providing anti-slip properties
to a wet deck. In addition to adding structural strength
to the sub-deck, a teak deck contributes to extra insulation
in hot and cool climates alike.
Teak, however, is not a uniform material; oil, fat, and
resin-content, as well as porosity, differ greatly depending
on source and age. The water content of the wood changes
depending on storage conditions, duration, temperature
and humidity. |
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General
Conditions
- Proper working conditions
are essential for a successful caulking result.
- Optimal results are obtained
under constant or falling temperature conditions
of between +5ÉC and +25ÉC.
- Exposure to direct sunlight
and rain during the operation and especially during
caulking needs to be avoided under all circumstances.
- Exposure to the elements
during and following each step of the Sika teak
deck application procedure needs to be prevented
for at least 8 hours.
- Good ventilation in a well-organised
working area are important factors for success.
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The
Quality of the Wood
Teak planks should show vertical, standing year rings.
The core humidity content of the wood should ideally
not exceed 12%, as too high an initial humidity level
could result in excessive
shrinkage of the individual teak planks in dry air and
might overstress the Sikaflex® -290 DC joint leading
to failure.
Ideally, the humidity content of the timber should correspond
to the equivalent humidity expected in service. |
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The
Planks
Teak planks are offered in various qualities and dimensions.
The symmetric shape is the simplest form with a separation
cut in the middle of two planks. The elasticity of the
Sikaflex® -290 DC seal is positioned to bridge the
differences in thermal and hygric movements. Asymmetric
teak planks with one-sided separation cuts are in principle
also suitable; however, the application of the bond
breaker tape requires more care. |
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