Over the millenia people have built boats out of all kinds of stuff. Bamboo, leather, paper, Fiberglass Young Build My Boat Own concrete. You name it, someone somehwere has tried it. But by far the most popular contemporary boatbuilding Own My Young Build Boat Fiberglass material is a strange substance known as fiberglass. The term fiberglass is itself somewhat misleading, as it describes just one component of what is actually a composite material. The other component is a plastic Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young resin, usually polyesteralthough vinylester and sometimes epoxy are increasingly used these build my own fiberglass boat young. The principle build my own fiberglass boat young any composite building material is simple.
A binding medium Build My Own Fiberglass Boat Young that is not structurally sound can be stiffened and made stronger by adding another more fibrous material.Build My Own Fiberglass Boat Young
You cannot, build my own fiberglass boat young example, build a solid house of just mud or straw, but if you mix mud and straw together, you can build quite a strong house. In all cases, the sum is much stronger than its parts. In this case, the medium is build Build My Own Fiberglass Boat Young Boat Build Fiberglass My Young Own my own fiberglass boat young resin, and the stiffening fibers are spun glass filaments ten times thinner than a single human hair.
These fine glass fibers are in one sense quite fragile, but when held in column by plastic resin they are also stiff and strong. The resin begins as a liquid Build My Own Fiberglass Boat Young and becomes solid after a catalyst or hardener is added to it. This is a chemical reaction that cannot be undone.
Unlike thermoforming plastics like Build Your Own Boat Shelter 50 polythene and PVC that can be melted after they set and recast like metal, thermosetting plastics like polyester, vinylester, and epoxy become permanently solid after setting. Applying Build My Own Fiberglass Boat Young heat softens them a bit and greatly weakens them indeed, they have very low heat resistance Build My Own Fiberglass Boat Young compared to most metalsand they may be set on fire, but they cannot melt and become fluid.
The Build My Own Young Fiberglass Boat glass fibers come in rolls of fabric. The most common sort is electrical-grade glass, known as E-glass, Boat Young Build Fiberglass Own My which was originally developed for use in electrical circuit boards. The alternative is structural-grade glass, called S-glass, How To Build Your Own Boat Motor Trends Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young which was developed for use in airplane construction. S-glass not surprisingly is a much better structural material Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young than E-glass. It is nearly half again as stiff and has much better impact resistance.
Unfortunately, it Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young also costs three times as much, which is why most boats are built build my own fiberglass Build My Own Fiberglass Boat Young boat young inferior E-glass. Quality builders often use limited amounts of S-glass to reinforce certain heavily loaded areas of a hull or deck, but only rarely do you see an entire boat built out of Build My Own Fiberglass Boat Young it. To make something as large as a boat out of liquid resin and floppy fabric, you need a mold to shape and support the materials until they solidify.
In both cases, multiple layers Build My Own Fiberglass Boat Young of fabric are built up into a laminate, and after the resin in all the layers has set up hard and cured, the now solid part can be build my own fiberglass boat young from the mold. When working with a male mold you are building up laminate from the inside out; Build My Own Fiberglass Boat Young the outermost layer goes on last, and if you want the outside of your boat to look Build My Own Fiberglass Boat Young nice and shiny you must fair and polish the exterior surface afterward.
With a female mold, the outermost layer goes on. Either way you must take the trouble to fair and polish the entire Build My Own Fiberglass Boat Young surface at least. But with a female mold you need do it only once though some intermediate cleaning and polishing is required and can then pop multiple fair-skinned build my own fiberglass boat young from the mold. This is why production builders always use female molds. They also use gelcoat, a thin coat of resin thickened with colored pigment, as the very first layer in the laminate so boats Build My Own Fiberglass Boat Young emerge from their molds prepainted as well as prefaired.
One advantage of fiberglass construction is that it Build My Own Fiberglass Boat Young facilitates the creation of complex hull shapes. But some shapes are still easier to form than. One Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young reason production sailboat builders favor the modern canoe-shaped flat-bottomed hull with low deadrise is that it is Build My Own Fiberglass Boat Young an extraordinarily simple shape to mold.
You do have to bolt on a keel afterward, but that Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young is a relatively simple matter of drilling holes and installing fasteners. A classic full-keel shape with lots of Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young deadrise and build my own fiberglass boat young bilges, by comparison, is more problematic since it is Build My Own Fiberglass Boat Young often impossible to extract a deep, narrow keel from a one-part mold, no matter how carefully the Build My Own Fiberglass Boat Young mold is waxed. Build my own fiberglass boat young ensure success a two-piece mold is often used, so the molded part can be more easily released by separating the halves of the mold.
It is also difficult to properly lay up and wet out fiberglass fabric in a deep mold with hard-to-access spaces. In other cases, with tumblehome hulls, for example i.
Molds themselves, of course, must also be created. To build one fiberglass boat, it is often said, you must in fact build two boats: the finished product and the mold from which it springs. With a female mold, you normally build Build My Own Fiberglass Boat Young three boats to get one--first a male plug on which the female mold is formed, then the mold, and finally the boat.
Capital costs, therefore, are quite high, which is why truly custom one-off fiberglass boats are quite rare. It is possible to build fiberglass boats cost-effectively, but only if many boats Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young are born of the same mold. This is what is unique about fiberglass construction. As late as the middle of the 20th century, boats were always built one at a time. Since the advent of fiberglass, however, boatbuilding has increasingly become an industrial process as opposed to a craft.
The biggest Fiberglass My Boat Build Own Young builders these days can churn out hundreds--or even thousands--of boats a year on massive assembly lines studded Build My Own Fiberglass Boat Young with computer-controlled robots that do everything from spraying gelcoat into molds, to cutting hatches and drilling holes for fasteners in decks, to cutting, trimming, and even varnishing interior woodwork.
But even on the most automated production line, a lot of manual labor is still needed for a boat to be built properly. Given Build My Own Fiberglass Boat Young the relatively small market for new sailboats, there is also a surprisingly large number of small Build My Own Fiberglass Boat Young builders who still build only limited numbers of boats using little automated machinery. For many in the Build My Own Fiberglass Boat Young industry boatbuilding is primarily a labor of love; to them boatbuilding will always be an avocation and never just a business.
Generally, however, the companies with the best long-term chances of survival are those Build My Own Fiberglass Boat Young that focus on economic reality and production efficiency.
One thing many mass-production builders have come to realize is that their biggest competition is not other builders of new boats, but the ever-growing number of older glass boats that build my own fiberglass boat young still on the water. It is now 60 years or so since the first glass boats appeared on the market, and there is still no Build My Own Fiberglass Boat Young Build My Own Fiberglass Boat Young evidence of any inherent limit to their useful life spans. As far as we know, a well-built, Build My Own Fiberglass Boat Young Young Own Build Fiberglass My Boat carefully maintained glass boat can last virtually indefinitely.
This, unfortunately, only encourages builders to produce boats that Boat Own Young My Build Fiberglass are less than durable. Buyers who expect to trade in or sell a new boat within a few years need not worry about this, as serious maintenance issues are unlikely to arise in the first few years of ownership. To help those who find their cruising sailboats on the brokerage market i. Having a good basic knowledge of construction techniques can save you from making some big blunders when you buy a boat, so I encourage you to stay tuned.
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Back Services. Boats PWCs. Boats Build My Own Fiberglass Boat Young for Sale View All. Or select country. Search Advanced Search. Personal Watercraft for Sale View All. Liked it? Share it! Facebook Twitter. He also served as managing editor at Offshore and associate build my own fiberglass boat young at Cruising World. Charles has logged more than 40, miles as an offshore Build My Own Fiberglass Boat Young sailor, including six transatlantic passages and some single-handed passages.
His blog posts appear courtesy of his website www. Build my own fiberglass boat young Reviews. Start Up Staff. Boating Guides. Boat Buyer's Guide. Boat Seller's Guide. Spring Commissioning for Your Boat. Popular Articles Related Articles 1.
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