Differences between marine plywood and MDF plywood.

Marine Vs MDF plywood.

Marine plywood

Marine plywood is constructed to resist rotting in a high-
moisture environment. It uses untreated
tropical hardwood veneers that have a set level of
resistance to fungal attack and are then bonded with
adhesives to a high standard.
This is a ply for more demanding high moisture
environments. Marine Plys are compliant with BS1088
which specifies a very high quality plywood intended for
use in boats and ships.
In practice Marine Ply is also used in other applications
where a high performance level and long service life are
required.
Marine Ply is normally stocked in the following
thicknesses:
● 4mm thick, sheet size 2440mm x 1220mm (approx.
8' x 4')
● 6mm thick, sheet size 2440mm x 1220mm (approx.
8' x 4')
● 12mm thick, sheet size 2440mm x 1220mm
(approx. 8' x 4')
● 18mm thick, sheet size 2440mm x 1220mm
(approx. 8' x 4')
● 25mm thick, sheet size 2440mm x 1220mm

(approx. 8' x 4').


MDF plywood

Medium-density fibreboard ( MDF) is an engineered wood product

made by breaking down hardwood or softwood residuals into wood

fibres, often in a defibrator , combining it with wax and a resin binder,

and forming panels by applying high temperature and pressure .

MDF is generally denser than plywood. It is made up of separated

fibres, but can be used as a building material similar in application to

plywood. It is stronger and much denser than particle board.

The name derives from the distinction in densities of fibreboard.

Large-scale production of MDF began in the 1980s, in both North

America and Europe.

Conclusion

I will say, having used both Plywoods myself, with the concern in mind to knowing what kind of wood am working with. I would go with the marine plywood. Sure, its more costlier and takes more work, but I would rather spend more and work more for what is worth it (Durable and long last)...just my preference.