mdo

what is med. density plywood overlay? is it plywood sandwitched between mdf? I looked in the plywood section at lowes and didnt see anything with that label on it.
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Dave, MDO (Medium Density Overlay) is a compressed paper "veneer" that is applied to the surfaces of a plywood sheet, usually for the purpose of providing a higher quality (smoother) surface for painting. It is usually a bit more expensive than "B" or "C" surface grade plywood; but may be about the same price as "A" surface material. The paper coating isn't usually very hard; so it scratches pretty easily if left unprotected. Painting is the usual protection for MDO surfaces. A good quality polyurethane varnish coating will "soak in" and substantially harden the surface after it cures. I have used MDO plywood for low cost door panels and, with a poly finish, as the top for small workbenches. MDO can be pretty hard to find in most lumber yards; but they can get it for you if you ask. Jim Seelye

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dave wrote:

Medium Density Overlay - Exterior type plywood finished with an opaque resin treated fiber overlay to provide a smooth surface ideal as a paint base. Recommended for siding and other outdoor applications, and for built-ins, signs and displays, furniture, etc. Available without grooving, with V-grooves, or in T1-11 or reverse board-and-batten grooving.
MDO is often used for concrete forms. Try a building contractor supply outlet.
-- Jack Novak Buffalo, NY - USA
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