What if plastic waste could become a design-led surface material for modern interiors?
At MTRL Library, we work with brands that rethink how materials are made, used and reused. Smile Materials is a strong example of this approach. By transforming discarded plastic into visually striking surface sheets, the brand demonstrates how waste can be turned into a valuable design resource.
For architects, interior designers and makers searching for materials that combine sustainability with bold aesthetics, Smile Materials offers a distinctive and responsible option.
Turning Plastic Waste Into Design Surfaces
Smile Materials focuses on collecting and repurposing plastic waste streams, which are then reprocessed into durable surface sheets suitable for a range of interior applications. Rather than relying on virgin materials, the brand uses existing plastic waste as its primary resource. This reduces the demand for new plastic production while diverting waste from landfill.
The result is a series of colourful, terrazzo-like surfaces created from fragments of recycled plastic. Each sheet has its own character, with unique patterns and textures that give designers something visually different from conventional materials.
For design professionals, this means the material offers both sustainability benefits and strong visual impact within a project.

Smile Materials is Built Around Circular Design Principles
At MTRL Library, we prioritise brands that support circular design and Smile Materials reflects this philosophy.
The surfaces are designed to be durable and long-lasting, helping reduce the need for frequent replacement. At the same time, the material can be recovered and reprocessed at the end of its lifecycle, allowing it to return to the manufacturing cycle rather than becoming waste.
This circular approach helps keep materials in use for longer while reducing the environmental impact associated with traditional material production.
Surface Materials Suitable for a Range of Interior Applications
One of the reasons Smile Materials stands out within our library is its versatility. The surfaces can be fabricated in a similar way to many sheet materials, making them suitable for a wide range of design and fabrication projects.
Designers and makers often use Smile Materials for:
- Retail and hospitality interiors.
- Furniture and bespoke joinery.
- Wall cladding and feature panels.
- Exhibition and installation design.
- Creative workspace environments.
The bold visual character of the material makes it particularly effective in spaces where sustainability and design storytelling are part of the concept.

Discover Smile Materials at MTRL Library
At MTRL Library, our goal is to make innovative and sustainable materials easier for design professionals to discover and specify. By including brands like Smile Materials in our library, we give the built environment and design sectors direct access to surfaces that transform waste into something functional and visually engaging.
If you are looking for materials that combine sustainability, creativity and practical fabrication potential, explore Smile Materials today and request samples to see how their materials could work within your next project.