GROUPE SAINT HILAIRE Pollutec 2025: A booth like a home to live in

Last October at Pollutec, we designed a booth for the Groupe Saint Hilaire, a family industrial group and supplier of mineral fillers, limestone, and lime, that breaks away from the codes of classic industrial communication.

For this project, we envisioned a booth as one imagines a living space.

Inspired by a converted van, a tiny house, or a student apartment, it was designed as a large modular LEGO: smart, functional, and warm.

Each module finds its place, every nook hides storage, and every detail is designed to create a smooth and welcoming experience.

Our ambition: to make the booth a lived-in space, where one feels good, where the material tells a story.

The starting point: a material, a story

Mesoporous oolitic limestone is at the heart of the Groupe Saint Hilaire's activity. A porous and living stone, a witness to millions of years, it embodies a technical and human know-how, from extraction to applications in decontamination. This booth tells that story.

A bold graphic choice

We broke the codes of industrial B2B. Powerful typography, strong contrasts, street art and urban inspiration: a visual language that engages and creates a dialogue between scientific expertise and contemporary aesthetics.

Matière Blanche designed the entire project — architecture, visual identity, experiential strategy — to distinguish the Groupe Saint Hilaire and create a sense of pride among the teams.

Sustainability and modularity: a booth designed like a Lego

The real challenge was elsewhere: to create a sustainable, reusable, and scalable stand.

Inspired by the logic of tiny houses and van layouts, each element has been designed to last and adapt:

• Modular structure: the elements assemble and disassemble like a Meccano set, allowing for multiple configurations depending on the exhibitions.
• Integrated storage: space optimization for practical and functional use.
• Interchangeable frames: the visual content evolves easily without having to redo the whole thing.
• Sustainable materials: no mix of materials, direct printing, designed for upcycling at the end of life.
• Postcard holders: to extend the experience beyond the exhibition.

A chain of expertise

Cusin Imprimerie and Imprimerie des Alpes brought the visuals to life with mixed printing techniques, adding texture and depth.

Cactus Concept ensured the technical realization with rigor and precision, bringing every detail from the structure to the finishes to life.

The result

About a hundred visitors walked through the stand during the exhibition. Beyond commercial exchanges, it was the coherence of the project — sustainable, modular, aesthetic — that left a mark and united the teams of Groupe Saint Hilaire.

At Matière Blanche, we believe that design can be a tool for transmission, emotion, and responsibility. Not just to showcase products, but to tell a story — and make it last.