Wood-based panels
FinsaNAF MDF

Designed around indoor environments.
FibraPan® NAF has a uniform fibre core for furniture, interior joinery and surface finishing. Its bonding resins are made without added formaldehyde.
NAF resin system
Made with resins containing no added formaldehyde.
Fine fibre structure
Supports accurate machining and surface finishing.
For dry interiors
Designed for indoor furniture and joinery in dry conditions.
Manufacturer reference
No Added Formaldehyde (NAF) resin technology; not a claim of zero emissions.

Clean surface, lower-emission resin system.
The panel pairs a refined fibre surface with a resin system made without added formaldehyde.
From wood to fine fibres.
Small wood pieces
Small pieces of wood are prepared for processing.Wood chips
Wood is broken into smaller pieces.Fibres
Fine wood fibres form the main body of the board.No-added-formaldehyde binder
Resins bond the fibres together.Available sizes & thicknesses
Only thicknesses listed for the chosen sheet size are shown.
Sheet proportions use one scale. The visible edge is exaggerated.
| Thickness | Sheet dimensions (mm) |
|---|---|
| 1220 × 2440 | |
| 1220 × 2440 | |
| 1220 × 2440 | |
| 1220 × 2440 |
| Thickness | Sheet dimensions (mm) |
|---|---|
| 2100 × 2850 | |
| 2100 × 2850 | |
| 1830 × 3660 | |
| 2100 × 2850 | |
| 2100 × 2850 | |
| 1830 × 3660 |
Reference catalogue combinations; confirm current stock and availability before ordering.
Technical data
Physical & mechanical properties
| Property | Test method | Unit | 2.5 | 2.6–4 | >4–6 | >6–9 | >9–12 | >12–19 | >19–30 |
|---|---|---|---|---|---|---|---|---|---|
| Density (*) | EN 323:1993 | kg/m³ | 860 | 860–835 | 835–820 | 820–800 | 800–770 | 770–750 | 750–695 |
| Internal bond | EN 319:1993 | N/mm² | 1.2 | 1.0 | 0.90 | 0.80 | 0.70 | 0.60 | 0.55 |
| Thickness swelling, 24 h | EN 317:1993 | % | 35 | 28 | 25 | 14 | 12 | 10 | 9 |
| Bending strength | EN 310:1993 | N/mm² | 27 | 27 | 27 | 27 | 26 | 25 | 22 |
| Modulus of elasticity | EN 310:1993 | N/mm² | — | — | 2700 | 2700 | 2600 | 2500 | 2300 |
| Surface soundness | EN 311:2002 | N/mm² | 1.2 | 1.2 | 1.2 | 1.2 | >1.2 | >1.2 | >1.2 |
| Reaction to fire | EN 13501-1:2018 | Euroclass | CWFT | CWFT | CWFT | CWFT | CWFT | CWFT | CWFT |
| Dimensional movement, length/width | EN 318:2002 | % | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.3 |
| Dimensional movement, thickness | EN 318:2002 | % | 10 | 10 | 10 | 6 | 6 | 6 | 5 |
| Surface absorption (two faces) | EN 382-1:1993 | mm | >150 | >150 | >150 | >150 | >150 | >150 | >150 |
| Grit content | ISO 3340:1976 | % weight | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 |
| Moisture content | EN 322:1993 | % | 7 ± 3 | 7 ± 3 | 7 ± 3 | 7 ± 3 | 7 ± 3 | 7 ± 3 | 7 ± 3 |
Technical values are from the Finsa product reference. Check the current official datasheet when specifying a project.
Nominal dimension tolerances
| Property | Test method | Unit | 2.5 | 2.6–4 | >4–6 | >6–9 | >9–12 | >12–19 | >19–30 |
|---|---|---|---|---|---|---|---|---|---|
| Thickness tolerance | EN 324-1:1993 | mm | ±0.15 | ±0.15 | ±0.15 | ±0.20 | ±0.20 | ±0.20 | ±0.20 |
| Length/width tolerance | EN 324-1:1993 | mm | — | ±2 mm/m; max ±5 mm | ±2 mm/m; max ±5 mm | ±2 mm/m; max ±5 mm | ±2 mm/m; max ±5 mm | ±2 mm/m; max ±5 mm | ±2 mm/m; max ±5 mm |
| Squareness | EN 324-2:1993 | mm/m | ±2 | ±2 | ±2 | ±2 | ±2 | ±2 | ±2 |
| Edge straightness | EN 324-2:1993 | mm/m | ±1.5 | ±1.5 | ±1.5 | ±1.5 | ±1.5 | ±1.5 | ±1.5 |
Technical values are from the Finsa product reference. Check the current official datasheet when specifying a project.
Datasheet & compliance
FibraPan® NAF
Finsa technical datasheet
FibraPan® NAF by Finsa — Technical datasheet
Official Finsa datasheet with product-specific performance, tolerances and handling guidance.
Open the official PDF ↗Board certifications

The product may have the following certifications, which can change depending on the material it is coated with.
Material highlights
Applications




Handling, storage & safety
Storage & handling
Keep panels flat, covered and away from water.
- Store under cover on a flat surface.
- Finsa recommends around 65% relative humidity for storage; avoid extremes.
- Do not allow direct contact with water.
- Keep spacers lined up vertically.
- Do not stack more than four packs high.
- Repackage damaged packaging to protect the boards.
- Bad stacking or humidity changes can cause permanent warping.
Safe processing
Plan for wood dust when cutting and machining.
- Use dust extraction where cutting, sanding and routing create dust.
- Keep processing areas properly ventilated.
- Use suitable breathing, eye and hand protection.
- Assess workplace risks before processing panels.
- Follow health and safety rules and exposure limits that apply locally.
- Refer to the full Finsa documentation for detailed safety advice.