3
8
12.7 Greas
ing
the
Needles
Prior to inserting the needles
,
it is advised to use a small amount of silicon vacuum
grease to aid both installation and removal of the needles. This will
slightly
improve the thermal coupling of the needle to the stem and also minimise the
cementing action of sap and gums produced by the tree in response to wounding
around the invasive
holes
drilled
into
the
sapwood.
This
will
be
of
significan
t
benefi
t
when
it
comes time for uninstallation.
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