The Gougeon Brothers on Boat Construction - WEST SYSTEM Epoxy

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228 Hull Construction Methods
Laminating Veneer Over a Mold or Plug This chapter describes in detail the process of laminating layers of thin wood veneer over a mold or plug such as those described in the previous chapter. <strong>The</strong> process of laminating veneers is more commonly known as cold molding, and what follows is one of the best available descriptions of the process. While popular in the early years of wood/epoxy construction, the cost of building a throw-away mold, the inability to include interior structure in the set-up, and labor required make cold molding less attractive than other methods of boat construction. Cold molding is still utilized in conjunction with strip plank construction on larger boats. When the mold is faired, it’s time to begin planking. Your plans will specify the number of layers of veneer or plywood the hull requires. Although this count may vary from project to project, laminating techniques do not. A hull may be made of sliced veneer, plywood, or stock which you have sawn yourself. In this chapter, for simplicity, we use the term veneer to refer to all of these materials. <strong>The</strong> general procedure for laminating hulls over a mold is not complicated. If your wood doesn’t have a single straight edge, you will have to cut one. <strong>The</strong>n spile each piece, trimming it so that it lies true against its neighbor at a desired angle, apply thickened epoxy, and staple it to hold it in place until the epoxy has cured. <strong>The</strong> first layer of a laminated hull is the most fragile. Edge glue its pieces and staple them directly to the mold. Carefully remove excess adhesive and staples. Sawn edge Clamp Circular saw Veneer 2" X 12" Base Figure 21-1 A method for cutting a straight edge on veneers. CHAPTER 21 Use thickened WEST SYSTEM ® epoxy to laminate a second layer of wood at an angle to the first and staple through the first layer to the mold. Continue laminating in this way, stapling subsequent layers to each other but not to the mold until the hull is as thick as you want it. Fair it, finish it, and remove it from the mold. Preparing the Stock You can use any of several different types of wood to laminate your hull. In most cases, boatbuilders use 1 ⁄8" (3mm) commercially sliced veneer, but you may choose plywood or saw the lumber yourself. <strong>The</strong> first step is to make sure that every piece has one straight and true edge. Later in this chapter, when we discuss spiling, the reasons for this will be apparent. Plywood has a manufactured straight edge accurate enough to require no further trimming. Veneer, 1" X 8" Straightedge Veneer Rough edge
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Gougeon Br
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iv Table of Content Getting Started
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vi Table of Content Chapter 17 Mold
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viii Table of Content Later Product
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x Preface The brie
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xii Table of Content
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2 Introduction With the help of fri
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4 Introduction
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Modern Wood/Epoxy Composite Boatbui
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Chapter 2 - Modern Wood/Epoxy Compo
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Wood as a Structural Material CHAPT
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Chapter 3 - Wood as a Structural Ma
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WEST SYSTEM ® Products This chapte
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Chapter 4 - WEST SYSTEM ® Products
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Hull Construction Techniques— An
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Chapter 5 - Hull Construction Techn
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Getting Started Chapter 6 Before Yo
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46 Getting Started Finally, should
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48 Getting Started Designers’ fee
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50 Getting Started
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52 Getting Started Material Price/b
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54 Getting Started between layers o
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56 Getting Started mast; sails and
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58 Getting Started
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60 Getting Started and it is import
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62 Getting Started necessity. We al
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64 Getting Started Grit refers to t
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66 Getting Started An efficient flo
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68 Getting Started Ridge Pole Frame
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70 Getting Started
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72 Getting Started unimproved lumbe
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74 Getting Started If it is not yet
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76 Getting Started chapters, we adv
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78 Getting Started
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80 Getting Started The</str
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82 Getting Started cures quickly to
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84 Getting Started Evap. Rate LEL2
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86 Getting Started 4. Use wet, rath
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88 Getting Started
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Laminating and Bonding Techniques <
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Chapter 11 - Laminating and Bonding
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Scarfing Scarfing remains an essent
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Chapter 12 - Scarfing 109 and used
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Chapter 12 - Scarfing 111 Productio
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Chapter 12 - Scarfing 113 Figure 12
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Chapter 12 - Scarfing 115 Figure 12
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Chapter 12 - Scarfing 117 bevels on
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Synthetic Fibers and WEST SYSTEM ®
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Chapter 13 - Synthetic Fibers and W
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Hardware Bonding As stated earlier
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Chapter 14 - Hardware Bonding 131 s
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Chapter 14 - Hardware Bonding 133 t
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Chapter 14 - Hardware Bonding 135 A
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Chapter 14 - Hardware Bonding 137 F
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Chapter 14 - Hardware Bonding 139 e
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Chapter 14 - Hardware Bonding 141 F
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Chapter 14 - Hardware Bonding 143 W
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Chapter 14 - Hardware Bonding 149 K
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Coating and Finishing Broadly, the
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Chapter 15 - Coating and Finishing
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First Production Steps Chapter 16 L
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166 First Production Steps Hull Lin
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168 First Production Steps Figure 1
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170 First Production Steps 1" X 4"
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172 First Production Steps After ch
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174 First Production Steps did the
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176 First Production Steps stem or
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Page 235 and 236: Building a Mold or Plug A mold is a
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Chapter 23 - Strip Plank Laminated
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Hard Chine Plywood Construction A s
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Chapter 24 - Hard Chine Plywood Con
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Compounded Plywood Construction Mos
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Chapter 25 - Compounded Plywood Con
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Later Production Steps Chapter 26 I
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318 Later Production Steps Figure 2
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322 Later Production Steps Material
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324 Later Production Steps Bulkhead
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326 Later Production Steps Teak ven
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328 Later Production Steps fuel tan
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330 Later Production Steps to the s
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332 Later Production Steps they are
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336 Later Production Steps
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338 Later Production Steps Preparin
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340 Later Production Steps A semici
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346 Later Production Steps Staple p
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348 Later Production Steps After we
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352 Later Production Steps Flat saw
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Review of Basic Techniques for Usin
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Fatigue Aspects of Epoxies and Wood
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Selected Bibliography While the fol
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