So I rebuild boats and have replaced sections of flooring before but this one I chose to rip the entire floor out and remove all the foam (what a pain that was) anyway this weekend I am going to put in the new floor, marine plywood, and drill and pour the new foam.  With that said when I am done with that I have to seal it.  I know the standard way to do it is with Fiberglass Resin and or Epoxy.  I am thinking of instead using Flex Seal.  I have used their spray before but now you can buy it in gallons and spread it on with a roller.  It will seal for sure and I am also sure it will not crack.   Any thoughts about using this product for this application?

Never used the flex seal stuff but if you have and have faith in it go for it. The only thing is if it doesn't work you have to clean it off and do it over.

That being said is this your boat or a customers? If it's a customers or one your selling I think I would do the safer proven route. 

They are my boats that I buy to rebuild and sell as a hobby.   I always keep the best and or fastest ones so I have a good bass and ski boat.  This one is a little bigger and has an 8 cyl engine so if it is faster then the VIP I rebuilt in the past and still have I will sell the VIP and keep this one.  If it is slower I will sell it.  But going with a proven product is no doubt a great case to make.  I ordered a small can today and going to test it on small pieces.  I called them they say it will work great but when I mentioned I had to put glue on top of it for the carpet they claimed they had not tested that yet.  

Flex Seal is advertised as "Liquid Rubber Sealant Coating".

http://www.mcoe.us/view/1668.pdf

 

Look , i just did this exact process.  FIrst you want to use the 2 part marine foam.  it comes in 2 parts you mix the two then pour.  2nd off you use untreated marine grade plywood.  then you seal it with thompson's water seal about 3 or 4 coats. 

On June 17, 2016 at 10:35 AM, cfalco said:

So I rebuild boats and have replaced sections of flooring before but this one I chose to rip the entire floor out and remove all the foam (what a pain that was) anyway this weekend I am going to put in the new floor, marine plywood, and drill and pour the new foam.  With that said when I am done with that I have to seal it.  I know the standard way to do it is with Fiberglass Resin and or Epoxy.  I am thinking of instead using Flex Seal.  I have used their spray before but now you can buy it in gallons and spread it on with a roller.  It will seal for sure and I am also sure it will not crack.   Any thoughts about using this product for this application?

My concern would be the reaction of Flex Seal and carpet glue......

I have been looking for a used bass boat for a few weeks now, I have seen a few I liked and lost out on them as they didn't last long. one boat I liked which is still for sale has carpet and it looks like he just used regular old indoor carpet... so I have been thinking if I bought this I would just rip out the carpet, the floor felt solid, I came across someone selling PVC sheets 4x8 either 1/4" or 3/4" which I would refloor over the existing floor seal it but a friend of mine ask if I ever thought about using bedliner texture coating. in place of putting carpet back down. this would seal the floor and give it a non slip surface. I love the idea as I am not a fan of carpet in a boat. here is the site he gave me that sell the stuff you can get just about any color... I would do a test piece of the PVC to make sure it adheres.

http://www.tcpglobal.com/Auto-Body/Custom-Bedliner/?gclid=CLvn2Nmgtc0CFcgjgQodOQENPw