Medium density overlay panel

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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[edit]

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 an inch in thickness.

References[edit]

  1. ^ Voluntary Product Standard PS 1. APA - The Engineered Wood Association. 2009. p. 20. 
  2. ^ a b HDO/MDO Plywood Product Guide. APA - The Engineered Wood Association. 2002. 

External links[edit]