Tag Archives: Don Gutzmer

Joining Plywood with epoxy

Joining Plywood

By Don Gutzmer – GBI Technical Advisor

Many boat parts require plywood lengths greater than the standard 8 feet, so joining together two panels of plywood is an important step. The most common methods of joining plywood are the butt joint with backer block, the scarf joint and a hybrid between the two. Each method offers its own distinct advantages and disadvantages in certain applications so it’s important to be aware of each joining method. Continue reading

bibble-free casting

Bubble-Free Casting in Knotholes and Cracks

By Don Gutzmer – GBI Technical Advisor

Customers often ask us to recommend a WEST SYSTEM product for filling cracks and knotholes in wood. The best choice is 105 Resin and 207 Special Clear Hardener. Used properly, this product combination produces a strong, transparent casting. I will use large logs with huge voids to demonstrate the best practices for achieving a clear, bubble-free casting with 105/207. Continue reading

rudder and dagger board

Sunfish Wood Restoration

By Don Gutzmer – GBI Technical Advisor

During the fall of 2016, I took a technical call from a customer who owned a Sunfish Sailboat. He lived in the area and was looking for help repairing a few minor gel coat cracks and restoring his wooden daggerboard and rudder. I told him I would be happy to help because this would be a good opportunity to write an article about using WEST SYSTEM 105 Resin and 207 Special Clear Hardener for the wood restoration part of his project. The mahogany daggerboard and rudder had weathered over the years because of only being varnished. Continue reading

Marquetry: Fake It Until You Can Make It

By Don Gutzmer – GBI Technical Advisor

Wood inlay marquetry has been around for a very long time, and I am always looking for different ways to use epoxy. I have learned that it is possible to use a laser jet printer with a clear transparency film to print an image, then transfer that image onto a substrate coated with WEST SYSTEM Epoxy, resulting in the look of marquetry without all the cutting, fitting and craftsmanship. (Inkjet printers do not work with this process because the ink does not transfer to the transparency film.) The image could be a picture of a wood inlay or whatever you can imagine. Here is the process I have found that works the best. Continue reading

Cold Weather Bonding

By Don Gutzmer – GBI Technical Advisor

“Whats the lowest temperature WEST SYSTEM Epoxy can be applied?” During cold weather, this is a common question our Technical Advisors are asked. Fortunately, its one were well equipped to answer. Gougeon Brothers, Inc. got its start in the world of DN Iceboat racing. Both Meade and Jan Gougeon have won multiple DN cup races worldwide. Its not unusual for an iceboat to need repairs mid-regatta, so part of the discipline of iceboat racing is getting epoxy to cure despite cold working environments. The trick is using strategies that bring epoxy temperatures up to adequate cure levels in cold working environments. Continue reading

Warm Temperature Bonding

By Don Gutzmer – GBI Technical Advisor

During warm summer months, WEST SYSTEM Epoxy working time and other handling characteristics will be different than at other times of the year. Our cure times are based on an ambient temperature of 72°F, but in warmer temperatures, the epoxy will cure faster. There are some steps you can take to extend epoxy working times and ensure good results when using WEST SYSTEM Epoxy in warm environments. Continue reading

Cockpit Sole Repair

By Don Gutzmer – GBI Technical Advisor

As a technical advisor, part of my job is to guide our customers to the correct product selection and discuss proper repair procedures. Sometimes it’s a fun challenge to take on my own projects to stay busy, and it helps me learn what my customers are up against when they do similar projects. This project was repairing the cockpit sole (floor) of a 1994 Four Winns 190 Horizon. The pictures will help tell the story. Continue reading

Sea Ray 400 Seat Repairs

By Sam Magruder

I have a 1996 Sea Ray 400 Express Cruiser that I purchased in April 2014. The vinyl is in excellent condition in the cockpit. However, when someone sat in the front passenger seat (45″ wide) the back looked like it wasn’t attached. I went to the Sea Ray Owners Club website to explore the repairs and a fix for the seat. I learned that if I waited until the seatback broke, the vinyl would be damaged, and it would be costly to replace. Continue reading

completed skim board

Vacuum Bagging a Skimboard at MITES Competition

By Ben Gougeon and Don Gutzmer

For the past couple of years, Gougeon Brothers Inc. has been involved with the Michigan Industrial and Technology Education Society (MITES). This non-profit organization consists of over 600 members involving both high school teachers and students who believe in the power of hands-on learning. The students build a project throughout the year and compete in the MITES annual regional, state, and national competition.

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