Do Acrylic Solid Surface Sheets Require Sealing?

For homeowners and designers selecting countertop materials, maintenance is a crucial deciding factor. A common question that arises is whether modern acrylic solid surface sheets require the periodic sealing necessary for natural stone? The resounding answer is no, and this fundamental difference is a key advantage of solid surface materials.

Natural stone, such as marble, granite, and limestone, is a porous material. This means it has microscopic holes and channels that can absorb liquids, oils, and stains. A spilled glass of red wine or a splash of cooking oil can permanently discolor a stone surface if not immediately cleaned. To mitigate this, stone countertops must be treated with a penetrating sealer shortly after installation. This sealer acts as an invisible barrier, blocking the pores from absorbing contaminants. However, this barrier is not permanent. It degrades over time due to cleaning, wear, and UV exposure, requiring reapplication every one to five years—an ongoing maintenance cost and chore.

In stark contrast, acrylic solid surface materials are non-porous by design. Brands like Koris engineer their sheets from a blend of acrylic polymers, minerals, and pigments, resulting in a completely homogeneous and impermeable surface. A spilled liquid will bead up on the surface and can be simply wiped away with no risk of internal staining. This inherent non-porosity means there are no pores to seal. The surface itself is the seal.

This core characteristic grants Koris solid surfaces significant practical benefits beyond just stain resistance. The non-porous nature makes it exceptionally hygienic, as it prevents the growth of mold, mildew, and bacteria, a critical feature for kitchens and bathrooms. Furthermore, this quality is not a superficial coating but is consistent throughout the entire thickness of the material. This allows for any scratches or scuffs—which are inevitable in any surface—to be easily sanded out without compromising its integrity or appearance. You are essentially maintaining the original surface, not a temporary protective layer on top of it.

In conclusion, while the timeless beauty of natural stone comes with the recurring responsibility of sealing, acrylic solid surface sheets offer a truly low-maintenance alternative. The innovative manufacturing behind brands like Koris eliminates the need for any sealing regimen entirely. For those seeking a durable, hygienic, and beautiful surface that performs effortlessly day after day without special treatments, non-porous solid surface is a compelling and practical choice.

Daily maintenance of a solid surface countertop

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