whether you're restoring a boat you've just purchased or putting the finishing touches on a newly handcrafted vessel, the final and most important stage is waterproofing the hull. this process can take anywhere from five to 10 days, but in the end you can be confident that your boat is ready for the water.
such maintenance tasks will require waterproofing and sealing your boat. if you have ever wondered how to waterproof wood for a boat, you are about to learn. why you should seal your boats wood. if you look up any information about sealing your boat, you are going to find that there is a plethora of information out there.
polyurethane is plastic. if you put just one coat of it down, after it dries you will have a thin and discontinuous that is, it will have holes in it layer of plastic attached to the wood. the wood is not waterproof at this point because of thes
re: waterproofing a hull without resin fwiw, in my younger days i stripped a mahogany clinker merlin rocket to bare wood and put cuprinol on it. fantastically effective: the boat leaked like a sieve 'cos the wood couldn't take up water and expand.
the boat has been sitting for a couple years and i noticed it had dry rot pretty bad. i doubt if the plywood ever got wet but just being exposed to moisture will eventually rot regular plywood. marine ply wood is expensive. i checked on it 10 years ago and they wanted over $50 a sheet so its probably $100 a sheet now.
polyester resin makes a very poor waterproofing finish if the boat is going to be left in the water for extended periods of time. the resin will allow water to penetrate the wood and cause the wood to rot. have you ever heard of hull blisters on gell coated polyester resin fiberglass boats?
a quick video of what i am using to 'waterproof' the wood in my boat, since i don't want to use the pressure treated ply wood. see more videos of this boat project on my channel www.youtube.com
how to waterproof wood for a boat? as mentioned above the boat is made up of marine plywood which is different from ordinary plywood. it can have up to 10 layers of thickness whereas regular plywood only has 3-5 layers. although marine plywood can survive the marine environment waterproofing, it will help in increasing its longevity.
this waterproofing recipe will use a simple solution of polyester resin and acetone. these simple, everyday products are available at: better hardware stores probably not hd tap plastics; boat shops . you can use it on your patio deck, wood boat internals, any woodwork that needs waterproofing.
this is the adhesive which, is used to make marine grade plywood marine grade, simply because it is the best waterproof wood to wood adhesive. it is rarely advertised, for the diy market because the manufacturers sell enough to industry. however, i need to point out that i am an amateur wooden boat enthusiast simply writing in order to try
wood even while your boat is dry and lifted out of the water. since youre waterproofing wood for a boat, dont buy just any sealer. buy sealer specifically designed for marine use. our end grain sealer kit includes two major parts for applicationa and bwhich will lock out water and prevent rot, making it great to use on docks as well