Alas this is not so.
Marine plywood versus regular plywood for jon boat floor.
Given sufficient time and use it may be that the protective fibreglass layer becomes damaged allowing water to permeate the surface and begin to rot the underlying plywood.
Water resistance bending ability and appearance are all key.
If the plywood is required structurally then this becomes a messy problem indeed.
3m introduces its new 3m reinforced polyurethane foam a lightweight and rot.
Advantages of regular plywood over marine plywood.
Where do you buy marine grade treated wood a person can t win here i posted an opinion which it seems everyone has one but as posters here have said and argued over and over that marine ply uses the same wood from trees as regular ply just thinner and with no voids and the same glue i would then take from the above post not to use any wood for a deck i have used treated wood before on my.
It takes paint well and could make a beautiful finish as a top floor something that regular plywood could not do.
As a diyer do you know the difference between marine grade plywood and the more common pressure treated plywood.
Wood is good unless it fails to serve the purpose for which it is intended.
A sheet can cost 10 to 50 as opposed to the cost of marine plywood which ranges from 70 to over 200 a sheet.
I m considering building a 20 power boat something along the lines of an atkins rescue minor or a tolman skiff.
Since marine wood is waterproof it will last longer than treated plywood.
Plywood is plywood right.
3m reinforced polyurethane foam offers lightweight alternative to plywood for marine construction general use.
Regular plywood is much less expensive than marine plywood.
I ve been unsuccessfully looking for some kind of comparison between the two materials.
To understand the differences between grades of plywood and the meaning of the various designations is to choose wisely.
However there is no harm in using marine plywood for nonwater projects.
The plywood is either expected to be a show face or at least a consistent face that can.
In the end marine plywood is ideal for building boats houseboats and other water projects.
In some ways it would make most sense for the plywood suitable for boat building to be the only plywood with a marine grade label.
Marine grade plywood for boat building.
The main issue with using a non marine plywood is the eternal problem of time.