Installation Guide
Installation Instructions
Some models constructed of stainless steel, copper and bronze have the option of being mounted either under or over 
the countertop. Their wide and tapered rims allow either type of installation. 
The installation steps below apply to both mounting techniques with differences clearly noted where they occur. Mount-
ing below the counter can be done in three different styles. Either style of mounting usually requires clips in addition to a 
silicone sealent. Clip styles can vary by mounting style and sink model, as noted in the diagrams below 
•  Using the template provided, measure and cut 
  the hole in the countertop.
•  Determine the locations for the clip brackets around 
  the perimeter of the sink. Pre-drill holes for the clips 
  using appropriate methods for the countertop material. 
•  With denatured alcohol, clean the surfaces of the sink 
  and countertop which will meet.
•  Topmount: Apply a bead of silicone along the top  
  perimeter edge of the counter opening. 
•  Undermount: Apply a bead of silicone along the   
  perimeter edge of the openning on the underside   
  of the counter. 
Undermount 
or Topmount
Sinks
The Installation of Sinks Which Can Be Undermounted or Topmounted
The Steps
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sales@polarissinks.com
•  Topmount: Carefully align the sink over the 
  countertop opening and lower into position, 
  applying pressure to secure a seal of the silicone 
  against the countertop.
•  Undermount: Carefully align the sink under the 
  countertop opening and raise into position, 
  applying pressure to secure a seal of the silicone 
  against the countertop.
•  Re-check that the sink is evenly aligned with the 
 countertop.
•  Attach and tighten the clip brackets against 
  the edge of the sink. Do not tighten one screw 
  completely before others. Partially tighten one clip 
  then the one across from it, and so on until all clips 
  are fully tightened. This will safeguard against an 
  uneven or insecure installation.
•  Use a cloth with denatured alcohol along the 
  perimeter of the sink and countertop to remove any 
  excess sealant.
STAINLESS STEEL 
TOPMOUNT CLIP 
(MX Series)
Undermount Techniques and Clip Style
STAINLESS STEEL 
TOPMOUNT CLIP 
(US Series)
Topmount Clip Style Sampling

