Medium density overlay panel

Medium density overlay panel, or MDO panel, is a paintable surface made of plywood with a weather-resistant resin overlay bonded to the wood by heat and pressure. The overlay, which has at least 27% resin content,^[1] resists water, weather, wear and degradation. A similar product with a more rugged, smoother surface is called high density overlay (HDO) plywood.^[2]^(p4)

Development

Originally developed for sign painting and concrete formwork industries, MDO is also used for other applications^[2]^(p5) as a paintable surface. Paint finishes on MDO are up to three times more durable than the same finish applied to ordinary plywood

It is a plywood product, with a paper face overlaid on the plywood substrate with an exterior grade (usually) phenolic adhesive. MDO is designed to have a smooth, paint-receptive surface. One or both faces can be surfaced with paper, and is produced in 4' x 8' sheets from 3/8" to over 3 inches in thickness.

References

↑ Voluntary Product Standard PS 1. APA - The Engineered Wood Association. 2009. p. 20.
1 2 HDO/MDO Plywood Product Guide. APA - The Engineered Wood Association. 2011.

External links

http://www.canply.org/english/products/overlaidplywood.htm

Woodworking

Overviews

Forms

Woods

Soft	Cedar (Calocedrus, Cedrus) Cypress Douglas fir Fir Juniper Larch Pine Spruce Yew

Hard	Ash Alder Aspen Balsa Beech Birch Cherry Chestnut Cocobolo Ebony Elm Hazel Lignum vitae Linden (lime, basswood) Mahogany Maple Oak Padauk Plum Poplar Teak Totara Walnut Willow

Tools

Abrasives Axe Adze Chisel Clamp Drawknife Drill Float Mallet Milling machine Mitre box Moulding plane Plane Rasp Router Sandpaper Spokeshave Timber-framing Vise Winding sticks Wood scribe Workbench

Saws	Backsaw Bandsaw Bow Bucksaw Chainsaw Circular Compass Coping Crosscut Frame Fretsaw Jigsaw Keyhole Miter Rip Scroll Veneer Whipsaw

Geometry

Joints	Birdsmouth Bridle Butt Butterfly Coping Crown of thorns Dados Dovetail Finger Groove Halved Hammer-headed tenon Knee Lap Mason's mitre Miter Mortise and tenon Rabbet/Rebate Scarf Splice Tongue and groove

Profiles	Bead Bevel Chamfer Molding Ogee Ogive

Treatments

Organizations

Conversion

Techniques

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