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Article of the Month:

Using Thermal Imaging to Detect Moisture Intrusion into a Cold Molded Boat Hull

John (Jack) N. Allinson, II BSc, AMS®
Level III Certified Infrared Thermographer

J.N. Allinson Associates, Inc.
222 University Blvd. North #2
Jacksonville, FL 32211
Ph: 904-721-2177


"Cold Molding" is a labor intensive process typically reserved for "Custom" boat builds. More often than not this process is used for Convertible Sportfish boats used for offshore fishing tournaments. A boat of this pedigree typically takes at least a year to complete and sells for over three million ($3,000,000.00) USD. The "Cold Molded" process uses strips of thin wood veneers and epoxy resin to create the complex shape of a boat hull.

The author is an Accredited Marine Surveyor (SAMS-AMS), Infraspection Institute Master Thermographer, co-author of the Standard for Infrared Inspection of Recreational Yachts & Small Craft Constructed of Fiberglass Reinforced Plastic and Composite Materials published in 2011 (aka "The Standard") and has used Infrared Thermal Imaging in his Marine Surveying business since 2003.

This year’s presentation will demonstrate how the Standard was used to detect moisture intrusion in a Sixty-Six (66) foot custom convertible wooden cold molded sportfishing boat.

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