A French invention born from a shared frustration
Christelle Caron grew up in the Paris region, in a family of craftspeople. From the waste observed on construction sites to the awards won at the Concours Lépine International Paris — this is the story of the Masticbox SADURR®.
From the worksite to the invention
Self-taught and a hands-on jack-of-all-trades, Christelle Caron grew up in a family of craftspeople. Alongside, a passion she still pursues — sailing — led her to spend time in boatyards from a very young age.
These two worlds share a striking common point: the constant use of cartridges and the waste this generates, with disastrous consequences both ecologically and economically.
The same observation holds at recycling centres: striking quantities of half-full cartridges, thrown away simply because they have hardened between two uses.
The market's solutions? Plain caps that do little more than replace the makeshift fix — a nail, a screw, cling film, tape.
Christelle decided to go further. She studied the mechanisms of polymerisation, analysed the role of activators and catalysts, and designed a system capable of preserving cartridges over the long term: a hermetic, dry environment that protects the entire cartridge — because the moisture in the air infiltrates everywhere and is the main activator.
An additional benefit appeared quickly during testing: the Masticbox also blocks the chemical fumes released by opened cartridges and provides a thermal barrier, particularly against frost.
After two years of research and development, numerous tests and prototypes, the Masticbox SADURR® was born.
Today, in a context of widespread price increases — driven in part by the rising cost of oil, essential to cartridge manufacturing — continuing to throw away products that are still usable no longer makes sense. The Masticbox SADURR® stands out as a solution that is economical, ecological and built to last.
"2% the idea, 98% the perspicacity."
A recognised innovation
Medals, international trade fairs, national press — the journey of the Masticbox since day one.
A harvest of awards
- Gold Medal — Concours Lépine International Paris
- WIPO Prize — World Intellectual Property Organization
- 3rd INPI Prize — French National Institute of Industrial Property
Trade fairs & growth
- Boot Düsseldorf — World's largest boating trade fair
- EisenwarenMesse Cologne — International hardware trade fair
- BATIMAT Paris — International construction trade fair
On France 2 Télématin
- "Coup de Cœur" from Laura Tenoudji
- Aired on 11 February 2026
- Selected among the best DIY innovations
The network that made it possible
No French innovation is built alone. These are the players who have backed the Masticbox SADURR® since its creation.
Initiative Centre-Val de Loire
Innovation honour loan of €50,000 secured in March 2023, essential for marketing development.
LAB'O Village By CA Orléans
Entrepreneurial coaching and access to a full innovation ecosystem.
BPI France
Guaranteed the loan obtained from a Pau-based bank to support industrialisation.
INPI
Patent filed to protect the invention. 3rd INPI Prize received at the Concours Lépine International Paris 2023.
WIPO
World Intellectual Property Organization. WIPO Prize awarded at the Concours Lépine International Paris 2023.
PRESTABAT
Network of construction tradespeople: plans, as-built documentation, tender briefs. Professional distribution partnership.
Made in France, nowhere else
The Masticbox is designed and manufactured in France, in the Auvergne-Rhône-Alpes region. A choice made from day one, never reconsidered since.
This decision affects costs — manufacturing here is not the cheapest path — but it guarantees quality, control and a respect for the local value chain. Every part of the Masticbox is individually repairable and replaceable, in line with the same logic: what is made should last.
"It's just not in my mindset to go and produce in China."
The Masticbox in the press
From the regional press to France Télévisions, with a stop at international trade fairs — the coverage that put the invention on the map.
Laura Tenoudji's "Coup de Cœur", among the best DIY innovations.
Watch the replay →Business feature on the case that keeps mastic cartridges fresh, registered in Orléans.
Read the article →Featured in the leading professional magazine for DIY and home improvement.
Read the article →"A transparent, hermetic box that fully protects a cartridge and keeps it usable far longer."
Read the article →Gold Medal at the Concours Lépine International Paris 2023, WIPO Prize and 3rd INPI Prize.
Read the article →"Media coverage put the product on the map." About a dozen distributors a year after the medals.
Read the article →"An innovation as practical as it is effective."
Read the article →