By Tom Pawlak
Gluing plywood structures together with epoxy fillets saves considerable time constructing the joints and reduces overall weight of the structure compared to more traditional methods using wooden cleats and screws. The strength and gap-filling qualities of epoxy eliminate the need for precisely fitted wood cleats that otherwise require time and skill to create. When gluing with conventional adhesives, that are non-gap filling such as resorcinol glue, wood cleats need to be well fitted, need to be wide enough to provide sufficient glued surface area and provide enough thickness for screws to be driven into. Building with epoxy fillets is especially beneficial when attaching bulkheads to hull sides, attaching hull sides to hull bottoms where the faces of the plywood are coming together at ever-changing angles. Continue reading
The employee-owners of Gougeon Brothers, Inc. are proud to congratulate the Great Lakes Boatbuilding School Class of 2016. Comprehensive Graduates (1st year)—Justin Bensley, James Biernesser, Daniel Cinal, Lauren Gaunt, Robert Hankenhoff, Sam Hoffrichter, Wayne Marmon, James Nelson, Mark Pugh, and Ariana Strazdins. Career Program Graduates (2nd year)—Mark Bilhorn, Caleb Gulder, Sean Libby, and Danton Thon.
For this issue we’ve dug through our Epoxyworks archive to put together a selection of all building articles. There are two reasons for doing this. For the last couple of months, we have been redesigning the PRO-SET Epoxy product line. This has taken an incredible amount of work by most everyone at Gougeon Brothers. especially those who write and produce Epoxyworks. In addition, since the beginning of the year, the chemists, lab technicians, and technical staff, who are the main writers of our articles, have been moving into their brand new quarters. Continue reading
Using the Lost Foam Method
By Captain James R. Watson
Here’s another use of the lost foam method to produce a custom part with a molded interior cavity. In this case, the part was a masthead fitting to hold an internal sheave and provide a route for the halyard to pass. This method can be adapted to a variety of other applications, as demonstrated in Fabricating an Air Scoop.