Tag Archive: rigging fishing kayaks

Watertight riveting in kayaks and boats

Pop rivets are widely used in the construction of boats, canoes, and kayaks.
Sealing rivets can be useful as a measure of extra precaution in case they come in contact with the water through which your kayak or boat goes.

How to better seal the rivets

Here are some tips for watertight riveting of kayaks and small boats made from Polyethylene –

  1. Polyethylene is the most widely used polymer resin (namely “plastic”) in kayaks, and it’s softer than aluminum and fiberglass used to produce other small boats. For this reason, it is recommended to use special aluminum rivets designed for riveting jobs in kayaks. These special rivets split in three, which increases their grip. You can get these rivets in outfitters stores, and online.
  2. Drill holes of exactly the same diameter of the rivet that you use (3/16″), and if possible, even slightly smaller holes (5/32″).
  3. Before you insert the rivet in the hole, coat its end with Goop, which is a powerful watertight adhesive used for plumbing and marine projects. As you push the rivet into the hole, some of the Goop will coat the inside of the hole, and some will come out on the other side and get squeezed
    gooping-the-rivet-01

    A rivet dipped in Goop watertight adhesive

    onto the inner surface as the rivet splits in three and presses against the inner surface. Excess Goop that will not come out on the other side or coat the sides of the hole, will remain on the outer surface and get squeezed by the rivet’s head. This way, the rivet’s parts that come in contact with the plastic will be coated with Goop, which would improve their water tightness.

  4. After riveting, coat the rivet’s head and the surface area around it with a generous amount of Goop. This will prevent water from touching the rivet, and in case of saltwater, it would prevent corrosion.

Aluminum rivets in fishing kayaks and boats

You may have an outfitting project in mind, such as attaching a rod holder to your kayak, or you may just wonder how strong are Wavewalk kayaks and boats built.
More generally, how well do aluminum rivets work when used in kayaks?

Before going further, we need to explain that nearly all modern kayaks are made from Polyethylene, a polymer (plastic resin) softer than steel and aluminum, and even softer than fiberglass, which is why it requires the use of special rivets that split in three and provide a better grip over a broader surface.
These rivets go under commercial names such as Tri-Fold, Tribex, etc.

Alumium rivets are used for attaching kayak parts together, such as the 14 rivets that attach the W700 Saddle part to the Twinhull part.
They are also used for attaching accessories such as handles, pad-eyes (eyelets), etc.

Here is a little experiment we did –

We riveted together two pieces of Polyethylene that we cut from a part of a Wavewalk kayak. We used just one rivet for this.
We hung one end of the joint pieces of plastic from a basketball pole, and on the other end we hung a fish scale.
We hung a travel bag from the fish scale, and filled the bag with bricks.
We stopped after ten bricks, because the dial on the fish scale had ran full circle, and stopped at 50 lbs.
At this point, neither the plastic pieces nor the rivet showed any sign of stress.

testing-the-strength-of-riveting

50-lbs-pulling-on-a-rivet

fish-scale-at-51-lbs

Needless to say that the effectiveness of a rivet depends on more than just the force applied on it in lbs, and additional factors are very important, such as the angle of the force (vector), leverage (a critical factor), the temperature of the plastic (hot plastic is softer), etc.
If we had attached the parts in this experiment differently, we would have seen different results.

New method for attaching a deck for fishing gear to the W700

By Chris Henderson

Fishing Kayaks of Gig Harbor

The versatility of the W700 means that it gets used for multiple things from having fun at the lake to seriously pursuing fish. Being able to attach and detach features is definitely a plus. In that light people have been using the holes located in the saddle of the W700. Here is an idea that I had that may help and further such innovation.

Try using PVC test plug fitting, (about $4.50 any place that carries pvc fittings) or some other mechanical plug. As you tighten the wing nut the two sides are compressed forcing the rubber o-ring to squish against the sides of tube. Just one will provide some grip but I wanted a much tighter stronger connection from deeper into the hole. I have seen some other more industrial plugs which I have no real source for but might even be superior to what I have. But I went with what was at hand and purchased four at my local big box hardware store and a longer 5/16 carriage bolt. Simply insert them into the hole and tighten it down. Once tightened down it was secure enough to lift the boat.

In this instance it is for a small deck that will host a Scotty rod holder for my downrigger. I have industrial strength Velcro on the front to prevent any lateral movement. If one really wanted to prevent that, or if you wanted to make a larger deck you could expand it to cover two of the holes. I could also imagine a small piece of plywood spanning two of the holes might be an ideal way to attach a seat or a pot puller for shrimp or crabbing.

Wavewalk owners are innovators, so I hope this would allow them to go a step further with their innovations.

Tight lines,

Chris

detachable-deck- for-fishing-kayak

Front deck, top view

plug-for-attaching-deck (2)

plug-for-attaching-deck

plug-for-attaching-DIY-deck-close-up

My W500 DIY electric fishing kayak

By Ricky Bruni

Alabama

I fabricated this mount from easily sourced items… 3/4″ plywood, misc plumbing parts, and wire from Lowes. The mount is held to the boat frame by 2″ by 1/2″ plastic nipples and faucet nuts. The battery box is just light gauge steel from Lowes and bent over a 4X4.

I bought a light weight gel cell battery (UB 12350) which weighs only 23 lbs. I did a barrel test and the motor ran just shy of 3 hours straight at speed level 3 of 4. Not bad. The motor is a 30 lb trust Minn Kota.

The tiller swivel was $12 from duckworksbbs.com plus shipping (racelite tiller extension swivel).

 

electric-fishing-kayak-battery-well-01

electric-fishing-kayak-motor-and-batter-01

electric-fishing-kayak-steering-bar-01

electric-fishing-kayak-steering-bar-joint-01

electric-fishing-kayak-steering-side-view-01

fishing-kayak-with-electric-trolling-motor-01

fishing-kayak-with-electric-trolling-motor-side-view-01

electric-trolling-motor-and-steering-bar-1024

HBBCO Pennsylvania outdoor trade show schedule

By Joe Stauder

HBBCO

It’s Sport Show Season!   Stop by our booth and say Hi!

See Wavewalk’s All New 700 series, and check out our various fishing, hunting and motorizing options for the 500 series.

  • January 28th-31st  at the Early Bird Sports Expo at the Fair Grounds in Bloomsburg, PA.
  • February 25th-28th  at the Greater Philadelphia Outdoor Sports Show in Oaks, PA