Category Archives: Fiberglassing

Repairing Bow Damage on a Lightning Sailboat, by GBI Technical Advisor Terry Monville. Featured in Epoxyworks #58.

Repairing Bow Damage on a Lightning Sailboat

By Terry Monville – GBI Technical Advisor

Getting started on any project is half the battle. This could not be truer when it comes to an unexpected fiberglass repair. Every crashed boat is different; making every repair a bit different. Some repairs are straightforward, textbook repairs. The damage occurs on a flat area of the hull that is a solid fiberglass laminate. A little grinding, a little fiberglass and you’re done. What happens when the repair is not so simple though?

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Patching up Shenanigans with Fiberglass

By Ray McCarthy

A friend gave me his well-used 1980 Sunfish sailboat, Stinkin’ Tuna. He and his brother had learned how to turn the boat (tacking) by ricocheting off rocks on Long Island Sound. Over the years they had kept the wreckage floatable with the application of non-hydrodynamic fiberglass patches. Though they made the boat functional, they hindered the boat’s performance. Time to get to work.

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Calculating Laminate Thickness

By Rachael Geerts – GBI Composite Materials Engineer

Have you ever wondered how laminate thickness can be determined without breaking out the epoxy and reinforcement fabric? The answer is simple—use math. While some of you may have just lost interest because you think math is too difficult, I can assure you that this math requires nothing more than some basic multiplication, addition, and division. Let’s get to it.

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RV Wall Replacement

 

By Matthew Logering

When we purchased our 2006 Winnebago® RV, we knew we would need to complete some repairs. We never imagined the back wall would need to be removed and rebuilt from the ground up. One of the edges of the back wall was compromised which allowed water to penetrate the wall and eventually saturate a majority of the plywood within. After determining that the damage was too great to spot treat/repair, we began the process of removing the wall.

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Swim Platform Rebuild

 By Don Gutzmer – GBI Technical Advisor

If your swim platform is experiencing water penetration, a repair or even a rebuild could be in your near future. We’ll show you how to measure the damage, and perform a successful repair that will last for years to come.

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Veneering a Transom

By Bill Bauer

I’ve been restoring an MFG 15. The transom was made up of one very thin fiberglass hull transom sandwiched between two ¾” mahogany layers and bolted together. I chose to reinforce the fiberglass transom with 12 oz. fiberglass. I also laminated the backside of each mahogany layer piece with 6 oz. fiberglass, and the front (exposed) side with 4 oz. fiberglass.

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fiberglassing overhead

Techniques for Fiberglassing Overhead

By Tom Pawlak — GBI Technical Advisor

The prospect of fiberglassing overhead when laminating the bottom of a hull can be a bit ominous. Any type of overhead work can be frustrating, but the thought of trying to hold fiberglass in place while applying epoxy can produce nightmares for some people. This is especially true if you will be working alone. Continue reading

Let’s Start Off Simple

Easy-to-build strip-plank projects

By Tom Pawlak — GBI Technical Advisor

Epoxyworks #36, Spring 2014

Cover Photos: Our special issue on building features practical and simple techniques.

Building a natural finish wood-strip or strip-plank canoe can be exciting and a bit daunting, particularly if it is your first clear finish canoe. You’ll commit time and money to the project and your expectations may run high. Most people are happy with the results of their first strip plank project, but deep down they wish some aspect of it was a bit better. Continue reading

Fiberglassing Strip-Planked Boats

Lesson 2 in our series on Strip Planking

by Ted Moores

At the La Routa Maya canoe race in Belize, SA., we saw a natural progression from chopping canoes out of logs to fiberglassing strip-planked boats with WEST SYSTEM® Epoxy. Strip-planking may have been the first step after the dugout in the evolution of boatbuilding techniques; the way the quality of wood is going, it might be the last to survive. With our strip-planked hull faired and the outside stem attached, there are many techniques that could turn these strips into a boat. Continue reading

Fiberglassing a Woodstrip Hull

By Ted Moores

The WEST SYSTEM User Manual describes the basics of fiberglass cloth application and coating for clear finishing over wood. This article is the ultimate guide to applying fiberglass over a woodstrip hull to achieve a perfect finish. Ted Moores is a master of the perfect finish, author of CanoeCraft and KayakCraft and co-owner of Bear Mountain Boats. Continue reading