Monthly Archives: February 2015

Upright Bass Repair

By Bruce Niederer

Just by luck, I was in the right place at the right time to purchase an old upright bass from the local school system for $50 because, sadly, the orchestra (stringed instruments) program was being discontinued. The bass needed strings and a new peg but was in decent shape—until I got my hands on it! As it was standing in the corner of my room patiently waiting for me to get to it, a gust of wind got there first, knocking it down and breaking the neck at the heel. Continue reading

Toughness of G/flex Epoxy

Fasteners Demonstrate G/Flex Toughness

It all started when I got a tech call from somebody asking if WEST SYSTEM® 105/206 would accept a nail pounded in, after it was cured, with no pilot hole. I confidently said that it would not work well and in most cases cause a fracture in the epoxy. Just for fun, I went out in the shop and tried it because even though every tech advisor agreed it wouldn’t work, nobody had ever actually done it. Well, we were right—the nail caused a “brittle” failure.

Then I saw a 1/8″ thick piece of cured G/flex 650 epoxy sitting on my work bench that I had Continue reading

Depth Sounder Installation

Jim Costello of Dallas, Texas, recently asked the Tech Staff about mounting a transducer to the hull of his 1983 Bayliner Capri Classic.  

“The user manual for my new Hummingbird fish finder says that the transducer can be installed in the hull with a slow curing epoxy. It says to try to eliminate all bubbles. I have105, 206, 404, and 406 on hand. What if I just mix up some peanut butter thick paste and use that? Or do you have any other suggestions? I can mount the transducer on a part of the hull that is thin enough for the application, according to Hummingbird. Thanks.” Continue reading

G/flex 650 and 655 Epoxies

Mixing G/Flex With Other West System Epoxies

By Jeff Wright

WEST SYSTEM 105 Resin-based epoxy is a very versatile system. For years, experienced users have been blending the various products in countless ways. For example, users may blend 205 Fast Hardener and 206 Slow Hardener to make a hardener with a modified cure speed. Different uses of 410 Microlight® Filler provide a further example. Many customers assume that the only use of 410 is to make a fairing compound—it is added to thicken epoxy to a peanut butter consistency to create a light, easily-sanded filler. However, 410 Microlight can be used in other ways. Jon Staudacher in Epoxyworks 22 described how he applied a “runny” mixture of epoxy and 410 to fill the weave on a composite part and reduce the Continue reading

How to Build a Set of Planer Boards

By J.R. Watson

Planer boards allow for more fishing lines to be trolled simultaneously and are used to spread lures and harnesses away from the boat when trolling at low speeds (below 2 knots). They are commonly used when fishing for walleye. You can achieve a greater dimensional spread with planer boards than with outriggers. Continue reading

Birth of the Gougmarans

by Meade Gougeon

Epoxyworks 25

Cover Photo: Brothers Meade & Jan Gougeon aboard their power catamarans with Dick Newick-designed hulls — GOUGMARAN and MAGIC CARPET.

In 2003, my brother Jan and I began talking about building a motorboat. This would be a first for the brothers, who up to this point have focused all our efforts on sailboats. Just a few years ago, it would have been inconceivable that we would ever take up power boating. But time and circumstances change one’s views, especially as we enter our senior years. We have always regretted that major parts of our home waters, the Saginaw Bay of Lake Huron, Michigan, have been too shallow for our sailboats. Some of the most attractive parts of the Bay with the best wildlife have been off limits to boats that draw more than 18 inches. Continue reading

Moisture Exclusion Effectiveness (MEE)-comparison

Moisture Exclusion Effectiveness

By Bruce Niederer

I get mad at my computer fairly often these days when it takes more than a few seconds to open a file from an obscure site on the other side of the planet. Who has that kind of time to waste? Don’t even ask about photo files. There’s no point in arguing about it—we live in an accelerated world. We hate waiting for anything. Putting the social implications of this aside, a business involved in technical applications and products cannot afford to wait for real time field test results. We need data and we need it yesterday!

The focus of this article on accelerated testing will be how we test the ability of a coating applied in a relatively thin film to resist water transmission. This test is called Moisture Exclusion Effectiveness (MEE). It is based on a method developed by the Continue reading

Installing a Removable Hatch

By Tom Pawlak

Meade Gougeon installed the original hatches on his Gougmaran, but he wasn’t convinced he had selected the ideal locations. Prior to installation he thought about how difficult it would be to remove and relocate them if he used one of the flexible adhesive/ sealants made for this purpose. There had to be a better way, one that would allow hardware to be easily removed yet seal out water. Continue reading

WEST SYSTEM Launches G/Flex Epoxy

By Tom Pawlak

G/flex Epoxy is a toughened, resilient two-part epoxy engineered for a superior grip to metals, plastics, glass, masonry, fiberglass, and wet and difficult-to-bond woods. Introduced in June 2007, G/flex Epoxy is currently available in two consistencies: G/flex 650 Epoxy, a liquid epoxy, and G/flex 655 Epoxy Adhesive, a pre-thickened epoxy. Both have a 1:1 mix ratio.

G/flex Epoxy gives you 46 minute pot life and a long open or working time of 75 minutes at room temperature. It will reach an initial cure in 3–4 hours and a workable cure in 7–10 hours. Wait 24 hours before subjecting joints to high loads. Continue reading