Stitch and Glue Boat Building

Fiberglass Supply 509-493-3464 support@fiberglasssupply.com

We carry a wide selection of materials used in the composites industry.  This often times can make sifting through our offerings difficult, for this reason we have put up this page to help you find the right materials for your project. Please, if you have any question do not hesitate to call us or e-mail.

Most stitch and glue boats are sheathed on the outside with what is referred to as 6oz glass.  6oz fiberglass cloth actually weighs about 5.6oz per square yard and commonly comes in two different styles.  Style 7533 is the most common, it is a plain weave fiberglass fabric which means that the yarns are twisted before it is woven. 3733 is a fiberglass fabric that has the same aerial weight as 7533 but it is a flat weave, meaning that the yarns are not twisted before weaving.

The style 7533 with the twisted yarns tends to wet out easier, especially when doing multiple layers and does not seem to fray as easily.  Style 3733 is less expensive, more difficult to wet out in multiple layers, but lays a little flatter and requires slightly less resin (depending on skill of course).  We stock both styles of glass in 30”, 38”, 50”, and 60” widths.

Glass fabrics are located here.

For small boats such as dinghies and kayaks often just a light weight fiberglass tape is used. In larger boats a knitted fiberglass tape is used. Many plans & designers will refer to it as a biaxial fiberglass tape, bias tape, or use nomenclature such as DB120 or DB1708.  These are heavier fiberglass fabrics that have all the fiber on one plane orientated in the same direction and on the other plain turned and orientated in another direction. For taping the seams of stitch and glue boats double bias, meaning that the fibers are orientated at +/- 45 degrees, is what is used.  Knitted fiberglass fabrics however have not been designed for use as a cosmetic fabric and often in areas where the seam will be seen it is top coated with a lightweight fiberglass tape or cloth. 

We stock double bias fiberglass tape in 12oz without mat (DB120) and in 17oz with mat (DB1708).  The 12oz is typically 6” wide and the 17oz we normally stock in a variety of widths. If we don’t have the width you need we may be able to get it. 

The catalog page for knitted products is here

Most stitch and glue boats are made from wood, being so we strongly recommend using an epoxy system to do the gluing and laminating. The reason for this is that nothing sticks as well to wood as epoxy.  System Three Resins has introduced a new line of epoxy solutions that are specifically designed for building wooden boats. This is their SilverTip Epoxy series. The beauty to the SilverTip line is that it includes pre-mixed filleting compound, a pre-mixed fairing compound, and an excellent laminating epoxy. We have found that the pre-mixed filleting compound reduces mess, reduces waste, and saves time, making the boat building experience easier and more enjoyable.

Item #

Description

Price

G05-0100

1.5 Quart Kit Silvertip Laminating Epoxy

$50.88

G05-0200

3 Quart Kit Silvertip Laminating Epoxy

$95.99

G05-0300

1.5 Gallon Kit Silvertip Laminating Epoxy

$136.76

G05-0400

3 Gallon Kit Silvertip Laminating Epoxy

$215.57

G05-0500

7.5 Gallon Kit Silvertip Laminating Epoxy

$513.69

G05-0600

15 Gallon Kit Silvertip Laminating Epoxy

$916.38

G05-0700

1.5 Drum Kit Silvertip Laminating Epoxy

Call

G05-0800

3 Drum Kit Silvertip Laminating Epoxy

Call

 

 

 

Item#

Description

Price

G37-3152

12oz Kit EZ-Fillet Putty

$13.85

G37-3155

1.5 Pint Kit EZ-Fillet Putty

$20.30

G37-3158

1.5 Quart Kit EZ-Fillet Putty

$35.10

G37-3161

3 Quart Kit EZ-Fillet Putty

$65.54

G37-3164

1.5 Gallon Kit EZ-Fillet Putty

$117.82

G37-3167

3 Gallon Kit EZ-Fillet Putty

$225.17

G37-3170

7.5 Gallon Kit EZ-Fillet Putty

Call

G37-3173

15 Gallon Kit EZ-Fillet Putty

Call

Item #

Description

Price

G37-3005

12 oz Kit GelMagic Epoxy Adhesive

$15.70

G37-3008

1.5 Pint Kit GelMagic Epoxy Adhesive

$23.99

G37-3011

3 Pint Kit GelMagic Epoxy Adhesive

$43.39

G37-3014

3 Quart Kit GelMagic Epoxy Adhesive

$79.70

G37-3017

1.5 Gallon Kit GelMagic Epoxy Adhesive

$148.37

G37-3020

3 Gallon Kit GelMagic Epoxy Adhesive

$281.48

G37-3023

7.5 Gallon Kit GelMagic Epoxy Adhesive

Call

G37-3026

15 Gallon Kit GelMagic Epoxy Adhesive

Call

 

 

 

Item#

Description

Price

G37-3103

24 oz Kit QuikFair Epoxy Fairing Compound

$23.50

G37-3105

1.5 Quart Kit QuikFair Epoxy Fairing Compound

$32.95

G37-3107

3 Quart Kit QuikFair Epoxy Fairing Compound

$64.24

G37-3109

1.5 Gallon Kit QuikFair Epoxy Fairing Compound

$120.89

G37-3111

3 Gallon Kit QuikFair Epoxy Fairing Compound

Call

G37-3113

7.5 Gallon Kit QuikFair Epoxy Fairing Compound

Call

G37-3115

15 Gallon Kit QuikFair Epoxy Fairing Compound

Call

 

 

 

We also have found having 5 minute epoxy around can be quite helpful and speed up the building process when tacking things into place.  We prefer System Three’s goof proof gun with the 50ml syringes and mixing tips.  It is quick simple and clean to use.

For a complete listing of epoxy products please go here.

Epoxy products contain chemicals that are a safety hazard, especially if these chemicals come in contact with the skin.  It is strongly recommended that first you educate yourself about the risk and second that you work with the proper equipment and work cleanly.  We stock a complete array of safety and hygiene supplies including tyvek suits, latex & nitrile gloves, and respirators. 

For a listing of safety supplies go here.

Other tools that will be needed are razor blades, squeegees, buckets, masking tape & paper, and bubble rollers.  These are found under Laminating Tools and Supplies in our catalog. The plastic squeegees can easily be cut to radius joints with a razor knife and sanded fair.  For most applications a 1” x 3” bubble roller will be work for smoothing glass into the joint and working the air out. The economy rollers with the plastic head work well and if you forget to get the roller clean they can often be saved by chipping the hardened epoxy off of the roller. If you have long straight joints a 1” x 6” roller may be a better choice.

For joints that will be visible or need secondary bonding placing a layer of peel ply over the wet laminate will give you a blush free surface that is ready to be bonded to or finished.  We stock three different grades of peel ply, the heavier two grades are recommended in this application.  Peel-ply is found in the Vacuum Bagging Materials section it comes 60” wide, you’ll need to cut it into strips before applying.

Please do not hesitate to call if you have questions, we have built many stitch and glue boats including an 8’ pram, 18’ kayak, and an 18’ Oregon Dory.  We also have many customers customers that are building stitch and glue boats.  It is a quick, fun, economical way to get out on the water and have fun.