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.

Bonding Corian edges for the do-it-yourselferBonding Corian edges for the do-it-yourselfer
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.

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.

Things You Will Need

  • Denatured alcohol
  • Caulking gun
  • Tinted epoxy
  • Clamps
  • Lumber
  • Fine-grit sandpaper
  • Belt sander
  • Orbital sander
  • Extra fine 220-grit sandpaper
  • Polishing bonnet


  • Practice sanding on scrap pieces of Corian.


  • Wear safety goggles and a dust mask when sanding Corian.
  • Work in a well ventilated room.

About the Author

Sal Marco began writing professionally in 2009. He has written many online home improvement articles based on his more than 20 years of experience in the home improvement and building industries. He has worked as both part of a team and as a site supervisor. Marco has a Bachelor of Science in management science from Kean University.