Thermolite floors in my Seahawk

salmonkillerSeahawk

Almost A Member
Aug 21, 2017
116
143
42
Covington
Name
Bryan
Boat
21NR Seahawk
Here is the YouTube video

After debating on what floors I wanted in my boat I finally decided to put in ThermoLite floors in my North River Seahawk.

ThermoLite flooring is made in North Dakota by Space Age Synthetics and there is only ONE distributor on the west coast; Applied Plastics in Portland. It took about 6-months to finally get the flooring in (thanks Covid).

I started by removing the old rotting floor out of my boat.. I cleaned the bilge area of my boat with a citrus degreaser and some good old fashion elbow grease…. To my surprise it came pretty clean… and also to my surprise I found some galvanic corrosion from the stainless steel floor screws and the aluminum holes they were inserted into on the floor structure.
I used a stainless steel wire wheel to remove the corrosion. After that I applied some alodine and then primed the area with some self etching primer.

I used the old floor boards as a template… just trace and cut & back-drill….. (wear a mask, long sleeves and goggles because this stuff is super itchy!!!).
I fit the panels into the boat with minimum of a 1/16 of an inch gap between the panels.
The large span between my fuel tank is 32-inches… The ¾ ThermoLite had some flex above the tank and I was okay with that… but after a sleepless night thinking about flexing floor panels I decided it would be in my best interest to fabricate some floor supports to help with the flexing.
I went to local aluminum supplier and bought some aluminum U- channel and L-channel. I made some simple floor braces and attached everything together with ¼ stainless steel nuts and bolts. I made sure to alodine all the cut ends of aluminum and used Loctite and Lanacote on all the SS hardware.
I drilled and tapped into my boats to secured the floor braces to the boat structure.

I applied 2 coats of Durabak 18 to the panels. Originally I applied one coat to the sides but realized I needed 2 coats to fill the 1/16” gap I created while laying the panels out.

Before putting the new panels In I coated the entire bilge area with CorisonX XD… I installed all the stainless steel fasteners with Lanacote.

I weighed all the old floors when I pulled it out and then weighed all the new flooring as I put it in…. weight savings was around 130 pounds.

Total cost of the project was around 1800$

Here is the YouTube video
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tacklejacked

Capt./ Ho if I get to drive
Jun 2, 2009
3,152
3,562
Seabeck
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Greg
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22 Hewescraft Searunner ET HT
Curious did you look into coosa board as well... I've been thinking of re doing the back deck on my hewes. Just haven't decided on a product yet. That thermo seems like a good product. Looks like you ended up with a clean and efficient finished product.
 
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goatram

Notable Member Gate Keeper to the Great Northwest
  • Apr 3, 2008
    10,803
    6,946
    Stanwood, WA
    Name
    grrrrrrrr
    Boat
    33' RBW MISS ELIZA
    Good Job. I like it. Post up a link for the company. as in www . Floorboards .com

    If ya use spaces ya might get it by the censor mods.

    Now go getsum air Ride truck Seats.
     
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    salmonkillerSeahawk

    Almost A Member
    Aug 21, 2017
    116
    143
    42
    Covington
    Name
    Bryan
    Boat
    21NR Seahawk
    Good Job. I like it. Post up a link for the company. as in www . Floorboards .com

    If ya use spaces ya might get it by the censor mods.

    Now go getsum air Ride truck Seats.
    This is the product:

    Order them through these guys :
     
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    goatram

    Notable Member Gate Keeper to the Great Northwest
  • Apr 3, 2008
    10,803
    6,946
    Stanwood, WA
    Name
    grrrrrrrr
    Boat
    33' RBW MISS ELIZA
    Nice work....How much weight savings??
    130lbs is what he said.

    "I weighed all the old floors when I pulled it out and then weighed all the new flooring as I put it in…. weight savings was around 130 pounds.

    Total cost of the project was around 1800$"
     
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