Gelcoat Blisters: Diagnosis, Repair & Prevention Manual

A guide for repairing and preventing gelcoat blisters in fiberglass boats using the WEST SYSTEM 105 Epoxy Resin System.

  • Understand fiberglass hull construction and the factors that contribute to the formation of gelcoat blisters
  • Evaluate and expose blister damage
  • Monitoring and reducing the moisture level of the laminate
  • Repairing isolated and interlaminate blister damage
  • Applying an epoxy barrier coat to prevent moisture penetration and the recurrence of blisters
  • How to use WEST SYSTEM products safely and effectively