How to Install Corian Backsplash

Backsplashes are an essential part of any kitchen design. Not only do they protect the walls from water damage and stains, but they also add visual interest and tie the whole space together. Corian is one of the most popular materials for backsplashes because it is durable, easy to clean, and available in a wide range of colors and patterns. Installing a Corian backsplash is a relatively straightforward DIY project that can completely transform the look of your kitchen. Here is a comprehensive guide on how to install Corian backsplash in your kitchen.

Choosing the Right Corian Backsplash

When selecting a Corian backsplash, there are a few considerations to keep in mind:

Types of Corian Backsplashes

  • Solid sheets – These are available in a variety of colors and thicknesses. Thicker sheets are more durable. Great for full wall applications.
  • Modular tiles – Interlocking tiles come in different shapes, sizes, and patterns. Make it easy to install. Allow you to get creative with patterns.
  • Listels/Battens – Narrow strips of Corian to get a sleek, modern look. Come in various widths and can be installed vertically or horizontally.
  • Accent strips – Wide colorful strips that can serve as an accent against solid backsplash. Make a design statement.


  • Consider the color/pattern of cabinetry, countertops, flooring etc. Contrast or coordinate the backsplash.
  • Take into account the size of the space. Small spaces look best with light, solid colors.
  • Do you want a bold statement or prefer subtle elegance? Corian offers endless options


  • Measure the length & height of space needing backsplash. Account for pattern repeat & cutouts.
  • Look at inside corners/edges that need finishing. Check availability of matching coordination pieces.
  • How will backsplash transition to countertops? Communicate with countertop fabricator.
  • Review backsplash specs to ensure it meets kitchen needs in terms of durability, maintenance etc.

Preparing for Installation

Proper planning and preparation are key to successfully installing a Corian backsplash.

Gather Supplies

Many standard DIY and construction tools will be needed:

  • Corian sheets, tiles or listels
  • Silicone adhesive caulk
  • Seam kit for Corian (adhesive, sealant color match)
  • Caulk gun, mixing paddles & containers
  • Screws, washers
  • Hole saw, drill
  • Utility knife, router, backsplash trowel, J-roller, grout float
  • Dust masks, gloves, eye protection

Prepare the Area

  • Remove existing backsplash completely, clean debris and dust.
  • Fill any holes or imperfections in the wall surface for smooth installation.
  • Measure precisely and mark out location of backsplash. Account for outlets, cabinets etc.
  • Clean wall thoroughly removing any grease, dirt or soap residues.

Acclimate Corian

  • Keep Corian sheets stored flat and evenly supported prior to installing.
  • Let Corian sheets adjust to room temperature for 24-48 hours before cutting and installing.

How to Cut Corian Backsplash

Corian can be worked just like wood. Here are some tips for cutting Corian:

Measure Twice, Cut Once

  • Accurately measure and mark cutting lines on the backside of the Corian. Use a square for straight cuts.
  • Double check measurements before making any cuts to avoid costly mistakes.

Cut Outlets, Switch Boxes First

  • Trace outline of any outlets or switches on the Corian and cut out holes prior to mounting sheets on wall.
  • Use a hole saw mounted in a drill to get clean, smooth cuts. Go slowly.

Use Proper Saw Blades

  • A fine-toothed blade designed for laminates works best on Corian to get clean cuts.
  • Carbide-tipped 100+ tooth blade ideal for Corian. Higher tooth count, the better.

Cut Slowly

  • Set saw speed to moderate/slow setting when cutting Corian to avoid chips and cracks.
  • Make multiple light passes rather than one aggressive pass for flawless cuts.

Clean Cuts

  • Use a router or file to smooth any rough edges on cutouts or openings.
  • Carefully sand cut edges for seamless joints between Corian sheets.

Installing Corian Backsplash

Once you have all the pieces cut to size, it’s time to install the backsplash. Here are some step-by-step instructions:

1. Dry Fit the Pieces

  • Lay out the pieces on a flat surface like a table or the floor.
  • Arrange the sheets and/or tiles in the planned installation pattern.
  • Inspect cuts, openings and edges. Make any adjustments needed for a perfect fit.

2. Apply Adhesive

  • Run a continuous bead of silicone adhesive along the top and bottom edges of each piece.
  • Use a Corian-specific seam adhesive for all seams between pieces.
  • Follow adhesive product instructions closely.

3. Mount Backsplash

  • Carefully lift and hold pieces in place against the wall.
  • Press firmly for maximum adhesion and eliminate any gaps between wall and backsplash.
  • Place removable painter’s tape along seams to keep tight as adhesive dries.
  • Continue mounting all pieces, wiping away excess adhesive as you work.

4. Seal Edges

  • Seal all seams and edges with Corian seam sealant to create impervious joints.
  • Apply sealant per product directions. Tool the sealant with a rounded spatula for smooth finish.
  • Remove excess sealant with denatured alcohol and clean cloths before it dries.

5. Fill Holes

  • Mix small amount of seam adhesive to fill any gaps, chips, holes or imperfections.
  • Tool adhesive smooth and level. Wipe away excess immediately.

6. Caulk Perimeter

  • Run a top quality silicone caulk bead along all edges where the backsplash meets walls, countertops etc.
  • Smooth the caulk with finger or tool. Allow to fully cure for a watertight seal.

Corian Backsplash Maintenance

To keep your Corian backsplash looking like new:

  • Use non-abrasive cleaners and soft cloths only. Avoid harsh chemicals.
  • Rinse backsplash with clean water after cleaning.
  • Re-caulk perimeter sealant periodically as needed.
  • Avoid gouging or puncturing surface with sharp objects.
  • Rebuff light scratches with a wet Scotch-Brite pad.
  • For deeper damage, sand and re-polish following Corian repair protocols.

FAQs about Installing Corian Backsplash

Does Corian backsplash need to be sealed?

Corian is an acrylic-polyester solid surface material that does not require sealing. It is non-porous and resistant to stains, mildew, and bacteria. However, you should caulk all edges and seams to prevent moisture intrusion behind the backsplash.

What is the best way to cut Corian backsplash?

Use a circular saw with a fine-toothed blade designed for laminates. Make multiple light passes rather than one aggressive cut. Use a router or file to smooth cut edges. Always cut from the backside.

Can you install Corian backsplash over existing tile?

It is not recommended to install directly over existing tile. Remove old backsplash completely and prepare wall surface to ensure proper adhesive bond and smooth installation of Corian.

What thickness of Corian should be used for backsplash?

1/4 inch and 1/2 inch are the most common thicknesses for Corian backsplashes. Thicker 1/2 inch provides more durability but either thickness will work fine for most residential backsplash applications.

Should you caulk Corian backsplash seams?

Yes, use a Corian-specific seam adhesive to bond pieces and seal all seams for water resistance and sanitary joints. A color-matched sealant will provide an invisible joint. Follow manufacturer directions closely.

How do you cut holes in Corian backsplash for outlets?

Use a hole saw mounted in a drill. Check measurements twice and cut holes before installing backsplash over the outlets. Cut slowly and make multiple passes to get a clean opening. Smooth rough edges carefully with a file.


Installing a Corian backsplash can completely transform the look of a kitchen or bathroom. With the right tools and preparation, it is a DIY-friendly project that you can accomplish in a weekend. Pay close attention to measurements, get cuts and seams tight, and properly seal all joints. Use care when cleaning to keep your backsplash sparkling for years to come. The effort is well worth it for the durability, easy maintenance, and design possibilities of Corian.