Corian and other solid surface worktops (Staron, Hi-Macs, Hanex, Avonite, Wilsonart solid surface) have long been favoured for their seamless aesthetic and repairability. Unlike stone or laminate, solid surface material is consistent all the way through — meaning surface damage can be sanded and buffed back to a smooth finish. But this also means the material requires the right technique and knowledge to repair correctly, particularly when matching gloss level and texture.
What Is Solid Surface?
Solid surface worktops — Corian being the best known (manufactured by DuPont/Siestas) — are composed of approximately one-third acrylic polymer (PMMA) binder and two-thirds natural minerals, most commonly aluminium trihydrate derived from bauxite. The result is a dense, non-porous surface with a consistent colour and composition throughout its depth. This is what makes solid surface uniquely repairable: damage doesn’t penetrate through to a different layer.
Types of Solid Surface Damage We Repair
Scratches
Light to moderate scratches in Corian and solid surface can be sanded out and re-buffed to match the original finish level (matt, silk, satin or gloss). The key is matching the sheen level precisely — if the repaired area is noticeably more or less reflective than the surrounding surface, the repair will be visible. Professional repair achieves a consistent finish across the repair area and surrounding surface.
Burns and Heat Marks
Despite being more heat resistant than laminate, solid surface worktops are not immune to heat damage. A hot pan or catering urn placed directly on a solid surface worktop can cause surface discolouration or blistering. Minor heat marks can often be sanded back; deeper damage may require a filler-and-refinish approach.
Chips and Impact Damage
Chips in solid surface — typically at edges or near sink cutouts — are filled with a colour-matched Corian or solid surface compatible material, then sanded and finished to match the surrounding surface level and sheen.
Sink Joint and Seam Issues
Corian sinks are typically bonded seamlessly to the worktop — but this joint can crack or discolour over time. Seam repair and sink joint consolidation restores the seamless look that is one of solid surface’s key selling points.
Staining
Despite being non-porous, solid surface can be stained by certain chemicals (strong acids, dyes, some household cleaners). Surface sanding and refinishing typically removes staining effectively.
Corian Repair vs Replacement
Solid surface worktops are expensive to fabricate and install — a typical Corian kitchen worktop installation can cost £3,000–£8,000 including fabrication, supply and fitting. Professional repair of localised damage typically costs £150–£500 depending on the nature and extent of damage. The economic case for repair over replacement is compelling.
Get a Solid Surface Repair Assessment
Send photos of the damage with the Corian colour reference if known for a free assessment and quote.
