NAUSET 16: Hold-down Anchors for Cooler

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
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Joined: Mon Jul 29, 2019 11:22 pm

NAUSET 16: Hold-down Anchors for Cooler

Postby Chipnice » Sun Aug 11, 2019 10:54 am

I recently purchased a 1970 Nauset 16. It’s obviously been through a lot of modifications. Lots of screws have been installed and removed over its 50 years. Currently it has a rather small Carolina skiff console installed which makes it easy to walk from bow to stern.

I have an old 40-quart YETI Roughneck cooler that I’d like to install in front of the console. This cooler is too narrow to screw to the plywood beneath the deck.

Give me a recommendation on how to properly anchor a cooler chock set for the old 40-quart Yeti cooler.

Also I’d like to fill and patch some screw holes and cracks. What product I should use?

I’m planning on tending to the boats other repairs—crazing, soft spots, rub rail, paint, etc.—in the off season.

Thanks for your advice.

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Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula

Re: NAUSET 16: Hold-down Anchors for Cooler

Postby jimh » Sun Aug 11, 2019 12:22 pm

For advice on how to create a reinforced mounting point in a deck laminate where there is no underlying wood reinforcement, I recommend the method described in a prior discussion at


Posts: 7849
Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula

Re: Filling old fastener holes

Postby jimh » Sun Aug 11, 2019 12:47 pm

To fill older fastener holes that are no longer needed or useful, there are several methods.

If the undesired fastener hole is in a highly visible position, the simplest method to fill it is to use an oval head screw of appropriate size and a finishing washer. This disguises the hole into looking like it has a purpose. There are several such screws on my boat, serving only the purpose of filling an old hole.

Otherwise, a hole in a highly visible position must be filled and then top coated with color matching gel coat resin. To get a perfect color match and to blend the repair seamlessly into the surrounding gel coat area is difficult. If attempting this repair, I recommend first developing your technique on other holes in lower visibility locations.

For holes that are not prominently visible, you can fill the hole with tinted resin that is close to the hull color.

For holes below the water line, cosmetic appearance is not important. Just fill the holes with a waterproof resin.

For resin, I prefer to use epoxy resin mixed with appropriate fillers and tints. Epoxy resin produces a very strong repair and is waterproof. Epoxy also has a very high success rate of curing. Others use polyester resin to make repairs. Polyester resin will not cure if exposed to air, so special techniques must be used with it. Polyester resin is also not waterproof nor as strong as epoxy. The only disadvantage of epoxy is a tendency to yellow if exposed to UV radiation (sunlight). If epoxy is used in a high-visibility area exposed to sunlight, it must be top coating with gel coat resin. There is an old dock-talk story that epoxy cannot cure over polyester resin, but that is not true. For advice on using epoxy over polyester resin, listen to a podcast at

Classic Whaler Radio: PART 1 with Jim Watson of West System ... tPart1.mp3


Classic Whaler Radio: PART 2 with Jim Watson of West System ... tPart2.mp3

I have filled many holes on my boat with tinted epoxy resin and not top-coated them with gel coat resin. These holes are in low visibility locations or under the waterline. The slight mismatch in color and a general trend to age to a more yellow hue are only minor annoyances for these seldom seen holes, and the ease of working with epoxy is a big advantage for me. I have top-coated epoxy repairs with gel coat resin with good results.

The easiest method to fill an old fastener hole is to use some sort of caulk or perhaps a sealant-adhesive. I do not use that method, but it is a simple approach, and many report using it.

There are three good articles that discuss repairs; see

Repairing Hull Damage the Whaler Way
by Taylor Clark

Boston Whaler Factory Instructions

The Epoxy Cure
by Jim Hebert