How do I Fuse Together Corian Countertops?


Corian is brand name solid surfacing material made from acrylic polymers heat-bonded into a one-piece countertop with color permeating the piece. Corian offers a non-porous, smooth and easy to maintain surface in kitchens, bathrooms and other areas of the home. Corian is available pre-cut to your exact measurements and specifications to create a truly custom countertop. A Corian countertop may require bonding if the countertop is too large to bring into the home or when replacing a piece of the countertop.

Things You'll Need

  • Denatured alcohol
  • Caulking gun
  • Tinted epoxy
  • Clamps
  • Lumber
  • Fine-grit sandpaper
  • Belt sander
  • Orbital sander
  • Extra fine 220-grit sandpaper
  • Polishing bonnet
  • Clean the edges of the Corian countertop with denatured alcohol to remove wax, grease, dirt and dust.

  • Load a caulking gun with tinted epoxy and squeeze out a thick long bead along the entire edge.

  • Push the two ends tightly up against each other.

  • Clamp the two pieces together or wedge pieces of lumber along the exposed countertop edge and a nearby wall to hold the joining edges together tightly.

  • Allow the epoxy to dry completely, usually 4 to 6-hours.

  • Sand the seam with a fine-grit sandpaper loaded into a belt sander or orbital sander. Do not apply pressure, allow the sander to do the work or you will cause depressions in the countertop.

  • Sand the entire countertop with an extra-fine 220-grit sandpaper loaded into an orbital sander.

  • Buff the countertop with an orbital sander equipped with a polishing bonnet to achieve a glossy surface.

Tips & Warnings

  • Practice sanding on scrap pieces of Corian.
  • Wear safety goggles and a dust mask when sanding Corian.
  • Work in a well ventilated room.

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