How to Build a Composite Boat: Part IV

Infusion Success Starts Long Before The Resin Flows

Once the mold, gelcoat, and skin coat are completed, the next critical stage begins: infusion planning. A successful infusion is not determined when the resin enters the mold—it is determined long before that.

The positioning of feed lines, vacuum lines, and flow media must be carefully planned to ensure complete laminate wet-out, controlled resin flow, a consistent fiber-to-resin ratio, reduced risk of dry spots and voids, and repeatable manufacturing results.

A well-designed infusion strategy can significantly reduce production risks while improving laminate quality and structural performance. For complex parts, even small changes in the infusion layout can have a major impact on filling times, resin consumption, and final part quality.

At MIMTec Yacht Engineering, we support this stage by developing laminate schedules and infusion plans that consider both structural requirements and manufacturing efficiency, helping shipyards achieve reliable and repeatable production outcomes. In composite manufacturing, the quality of a part is not only defined by its design, but also by how it is built.