Sicomin worked alongside Multiplast, main contractor Bouygues and engineering consultants Calcul Méca to support architect Jean-Michel Wilmotte’s design for the cathedral. Sicomin supplied materials for the dome tooling to Décision SA, based in Switzerland, who infused a set of glass fiber multiaxial fabric and balsa reinforced molds using Sicomin’s SR8100/SD7820 cost-effective 120 C epoxy infusion system.
The dome panels themselves were produced at Multiplast’s factory in Vannes, France, using Sicomin’s SR8100/SD4772 epoxy infusion system and a specifically developed glass fiber reinforcement lay-up. By combining their heavyweight quadaxial fabric style QX1180 with a woven 500gsm fabric, Sicomin was able to provide a laminate with no print-through and good top surface flow characteristics to prevent dry spots.
