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Figure 2
Figure 3Figure 3
Silicone
Section Detail
Section Detail
.050” / .060”
Sink
1/2” plywood
reinforcement
sheet
Silicone
dabs
Create sink support
1.
Prepare minimum 1/2” plywood sheet (sink support) by
cutting to dimensions of cabinet it will be mounted to.
2.
Secure 1/2” plywood sheet (sink support) to work
surface using various clamps. Fasten the female
template (plywood) to the 1/2” plywood sheet (sink
support). Using the 1-3/16” router guide bushing and
the 1/2” straight cutter bit, cut opening in the 1/2”
plywood sheet (sink support). Do not remove the
female template from the sink support.
3.
Using the 1/4” straight cutter bit, recess the opening in
the sink support by .050” to .060”, to accept flange of
sink. (As shown in Figure 2).
NOTE: For reference, 1/16” is .0625”.
Install undermount sink
1.
Clean flange and rim of sink, and countertop mating
surface (underside of countertop) with solvent such as
denatured alcohol.
2.
Set sink in sink support cutout.
3.
Generously apply a continuous silicone bead around
the sink rim. (Dow Corning
®
786 recommended.)
4.
Liberally apply silicone dabs on plywood sink support
at least 2” back from the sink cut-out. (See Figure 3.)
4.
Remove the female template and set aside.
Cut out countertop
IMPORTANT: All solid surfaces (such as marble and granite)
must be cut by a qualified installer or fabricator.
1.
Clamp 1/2” plywood female template on top surface of
countertop, in desired position. This position will be
determined by the relationship of the sink rim to
cabinet gables, cabinet supporting members, and deck
mounted fittings.
2.
Cut out countertop by tracing edge of female template,
using the 1-3/16” router guide bushing and the 1/2”
straight cutter bit.
3.
Finish cut-out edge of countertop with desired finishing
techniques.
5.
Align sink to underside of countertop cut-out so that a
uniform sink edge is visible from the topside of the
countertop around the periphery of the cut-out.
IMPORTANT: You cannot make any adjustments after
performing Step 6, following:
6.
Clamp sink support and sink rim to countertop. Use a
non-abrasive cloth and solvent to remove excess
silicone that has been squeezed out beyond the cut-out
edge. Do not use any metal implements that will
scratch the sink. Keep clamps on for a minimum of 24
hours before installing in cabinet.