Undermount sinks are primarily fixed in the following ways:
1. Wrap-around metal brackets (common on stone countertops)
2. Structural adhesive bonding under the countertop (glass glue/marble glue/epoxy resin)
3. Countertop weight pressing structure (some sinks have pre-drilled edges that prevent upward passage)
Based on the above reasons:
Undermount sinks almost never can be removed upwards; replacement must be done by disassembling from below and removing them downwards.
2025-11-28
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