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Related Reading

MDO plywood specificationsFor a deeper dive into MDO overlay grades, resin weights, and application guidance beyond formwork, see our dedicated MDO plywood guide.
Film-faced plywood applicationsFilm-faced phenolic plywood is the dominant global alternative to HDO and MDO — learn about its uses across construction, transport, and industrial sectors.
Matte concrete surface plywoodBrowse Vinawood's range of panels engineered for matte-finish architectural concrete — an alternative to the glossy finish HDO produces.
HDO plywood detailed guideOur full HDO plywood guide covers APA grading, structural properties, and specifications in greater detail than this comparison overview.

Quick Answers

Is HDO or MDO plywood better for concrete forms?
For projects requiring 20+ reuses per panel or an exposed concrete finish, HDO is the better choice — its denser phenolic overlay (45+ g/m²) delivers 30–50 reuse cycles and near-mirror concrete quality. For 15–20 cycle projects where concrete will be painted or clad, MDO saves 30–50% on upfront panel cost while still outperforming standard plyform.
What is the difference between HDO and MDO plywood?
The core difference is overlay density. MDO uses a lighter resin-fiber overlay at 20–30 g/m², producing a smooth paintable surface with 15–25 reuse cycles. HDO uses a denser phenolic overlay at 45+ g/m², creating a harder, more abrasion-resistant surface that delivers 30–50+ cycles and a near-mirror concrete finish. HDO costs 30–40% more per sheet but has a lower cost per pour on high-cycle projects.
How many times can HDO plywood be reused for concrete forming?
HDO plyform typically delivers 30–50+ reuse cycles with proper site practices — applying release agent before each pour, cleaning promptly after stripping, sealing cut edges, and storing flat off the ground. Premium 220 g/m² film-faced panels from Vietnam manufacturers offer equivalent reuse performance at 20–35% lower cost per sheet.
Can you paint MDO plywood?
Yes — MDO's resin-fiber overlay creates an excellent paint base, making it popular for both concrete forming and signage applications. The surface accepts latex and oil-based paints without priming. HDO plywood has a harder, glossier surface that is more difficult to paint, so MDO is the better choice for applications where painting is planned.