What is a Cheap alternative to Waterproof casting deck?

Discussion in 'Boat Design' started by Ryan Miller, May 16, 2019.

  1. Ryan Miller
    Joined: May 2019
    Posts: 11
    Likes: 0, Points: 1
    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

    I just got a 1996 Spectrum 16 Avenger SC and the floor was rotten so i ripped it up and i cannot get Marine ply shipped to where i live. I cant find anywhere local that sells it either. So i am using regular plywood. So I was looking for a cheaper alternative to waterproofing the casting deck and the floor. I live in ontario canada and cannot find indoor/outdoor oil based enamel paint i found indoor/outdoor Alkyd based Enamel paint. I have also found a small can of Fiberglass resin which will be just as expensive as Epoxy Resin. Anyone know anything cheaper or any links to places i could find a cheap waterproofing paint or resin.
     
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Alkyd paint is oil paint. Google "canada fiberglass supplier" and you will get many options.
     
  3. Blueknarr
    Joined: Aug 2017
    Posts: 706
    Likes: 115, Points: 43
    Location: Colorado

    Blueknarr Senior Member

    Welcome to the forum.

    Alkyd enamel and oil enamel are the same stuff.

    At least use exterior plywood. Interior or "exposure 1" will fail quickly. Lickly in less than a year.

    Epoxy will provide the greatest seal. Polyester would also suffice. Both epoxy and polyester should be top coated to provide UV protection. Paints are better UV protection than waterproofers. Spray on urathan truck bed liner is a great non-skid floor paint.

    P.S. Be sure to seal the bottom and edges as well.
     
    Last edited: May 16, 2019
  4. ondarvr
    Joined: Dec 2005
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    Location: Monroe WA

    ondarvr Senior Member

    If you want cheap, buy exterior grade plywood and paint it, you will get a few years out of it. Unless you plan to do it right, with the correct products and techniques don’t spend (waste) money on better materials.
     
  5. DCockey
    Joined: Oct 2009
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    Location: Midcoast Maine

    DCockey Senior Member

  6. Ryan Miller
    Joined: May 2019
    Posts: 11
    Likes: 0, Points: 1
    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

    Awesome thank you I plan on just getting it water ready for this year then doing it right later down the road my first boat and just itching to get it on the water
     
  7. Ryan Miller
    Joined: May 2019
    Posts: 11
    Likes: 0, Points: 1
    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

  8. Ryan Miller
    Joined: May 2019
    Posts: 11
    Likes: 0, Points: 1
    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

    I just paid a lot for the boat knowing the floor needed to be redone just looking for a cheap way to do the floor for this year and will get to a better and proper way when I get more cash most likely during the winter
     
  9. Blueknarr
    Joined: Aug 2017
    Posts: 706
    Likes: 115, Points: 43
    Location: Colorado

    Blueknarr Senior Member

    How soft is the sole (flore)?
    Will it live thru this summer? Then you only have to do the work once.
     
  10. Ryan Miller
    Joined: May 2019
    Posts: 11
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    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

    The floor was done completely i went through it in some spots. I like the project of redoing the boat. I dont mind doing it again this will be a quick fix and i just dont want rotten wood when i go to do it right. I will be buying the right materials through out the summer so in winter or next year i can do it. Im just in a rush to get it ready for opening bass lol
     
  11. Blueknarr
    Joined: Aug 2017
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    Location: Colorado

    Blueknarr Senior Member

    You're stepping thru it. Most definitely dead.

    Be warned. There is a trifecta of rot in small boats. The stringer and transom cores rot at about the same pace as the sole. While you have it opened up check to see if you need to repair them this winter as well.

    Don't worry non of the work is exceedingly difficult, just dirty and tedious.

    I lived around Edmonton for a few years. Enjoy your summer. Even if it is on a Thursday.
     
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  12. Ryan Miller
    Joined: May 2019
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    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

    It is a fair size 16 foot I have never done any of that but I did check the transom it is still good im not 100 percent what the stringer is but I will find out when I research it. My boat has alot of tedious little spots that are hard to get at it might be some fair work to do. Here are some pictures of how I got it.
     

    Attached Files:

  13. Blueknarr
    Joined: Aug 2017
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    Location: Colorado

    Blueknarr Senior Member

    A better word would be "tri-funk-ta".

    Stringers run fore and aft. Primary purpose is to strengthen hull so that it doesn't buckle upwards. Secondly maintains correct angle between hull and transom and transfers the propulsive force from transom to hull. Often they are also sized to be tall enough to be floor joists and support the sole.
     
  14. Sean Duval
    Joined: Mar 2019
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    Location: yuma az

    Sean Duval Junior Member

    I realize others have chimed in here that are far more knowledgeable than I am. But I wanted to put in my thoughts based on my experiences as it may be somewhat useful.

    I found that if for some reason west systems epoxy was unavailable due to cost or whatever that very thin epoxy from Amazon in 1.5gal Kits worked remarkably well. But as it does penetrate and sets slowly took more than 1 coat on the topside over marine ply to make me happy. Going on 7 yrs now for the wood, no issues yet. Used it for the sole...the deck...the transom...and built a 36" tall by 18" square bait tank out of ply attached to my ply center console. No issues with regular salt water and freshwater exposure yet. No regrets yet. It is all either painted or carpeted though so protected from UV and I do live in the Mojave desert so everything dries thoroughly during my 4 day work week. Your mileage may very.

    Be very very sure of stringers and transoms....often they are glassed and fully encapsulated but for some reason when they drill the transom for outboards... or pop a hole in it for I/O drives, they either do little or nothing to protect it at the perforations. The stringers on Inboards and I/Os are often drilled for mounts and left as raw wood exposed in the hole, or lag bolts holding mounts in which by itself makes me nervous but add water intrusion and the possibility that gravity is all that holds your engine in becomes a real possibility. Stringers and transoms can look 100% and feel firm....and still be a rotten mess inside. Please look very very carefully into both.
    That is what I have seen from my experience, and I would gather 95% of the folks here perhaps and likely including yourself know way more about boats than I do. That means listen to them 1st.

    Sean
     
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  15. Ryan Miller
    Joined: May 2019
    Posts: 11
    Likes: 0, Points: 1
    Location: Almonte, Ontario, Canada

    Ryan Miller Junior Member

    Thank you I will definitely look into this and I did notice the transom is rotten so now I have to replace that but it is sealed in I will have to figure out how to change it now it is an aluminum boat and I do not want to pay 2000 CAD or more to get my transom changed I will be sealing that with epoxy and sealant for all the bolts
     
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