Stone Installation Supplies for Fabricators

A clean install depends on more than the countertop itself. Basic Diamond stocks the supplies fabricators need to finish the job right, including seam setters for tight, aligned seams, sink mounting and dishwasher mounting hardware, and caulk, tape, and shims for the small adjustments every install needs. Need something for a specific mounting challenge? Our installation accessories cover the rest. Everything ships same or next business day, so a missing part doesn't hold up a job site.

Installation Supplies - Common Questions

What is a seam setter used for?

A seam setter pulls two slab pieces together and holds them level while adhesive cures, producing a tighter, straighter seam than clamping by hand. Most models use a suction cup and screw mechanism.

How long does seam adhesive need to cure before moving the slab?

Most epoxy seam adhesives set enough to release the seam setter within 20 to 30 minutes, though full cure can take up to 24 hours. Check the adhesive's spec sheet, since cure time varies by brand and shop temperature.

Do I need different mounting hardware for undermount vs. drop-in sinks?

Yes. Undermount sinks mount from below using clips or epoxy, while drop-in sinks rest on a cutout lip and typically only need clips or caulk. Confirm your sink type before ordering mounting hardware.