A sustainable, adhesive-free lettering technique using local soil on glass—replacing PVC graphics with natural, compostable, and place-based design.
Long description
Developed by award-winning biodesign studio Bio Crafted, this soil-based lettering technique offers a sustainable, non-toxic alternative to conventional window graphics. Rather than relying on PVC vinyls—which are un-recyclable and produced through highly polluting chemical processes—this method uses locally sourced topsoils applied directly to glass surfaces. The process requires no adhesives, plastics, or additives, and is entirely compostable and reusable at the end of its life.
Each application is handcrafted, resulting in natural textures and tones that reflect the geological identity of place. The technique was first pioneered for large-scale exhibition entrances and public installations, demonstrating both visual impact and environmental responsibility.
Designed to be temporary yet resilient, the soil lettering can be removed without residue, returning safely to the earth. This innovation challenges current signage norms, replacing petrochemical-based materials with a regenerative, place-based approach that invites people to see soil not as dirt, but as narrative.
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