MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm)
MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm) - Image 2
MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm) - Image 3
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MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm)

£50.00 ex.VAT

High-performance P5 long grain MDF sheet designed for interior use in humid environments. Factory white primed on both faces and edges for a clean, ready-to-paint finish. Ideal for drylining, cabinetry, and interior fit-outs.

Standard Price: £50.00 + VAT (£60.00 inc. VAT)
Trade Price: £30.00 + VAT (£36.00 inc. VAT)
Spend over £1,500 to qualify for trade pricing at checkout.

(50 customer reviews)

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MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm)
MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm)
£50.00 ex.VAT

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MoistureGuard™ Long Grain MDF is a premium P5-rated, moisture-resistant board designed for interior joinery and finishing work in areas exposed to occasional humidity. With a long grain structure for greater strength and surface stability, it delivers a superior base for painted finishes.

This 9mm board is factory-primed in white on both faces and all edges, allowing for quick on-site finishing with no need for extra prep. It’s ideal for professional use in:

  • Kitchens, utility rooms, and bathrooms
  • Wardrobe interiors, media units, and furniture carcasses
  • Drylining, boxing-in, and decorative cladding
  • Commercial fit-outs and modular builds

Key Features:

  • ✅ P5 Moisture-Resistant MDF Core – suitable for humid interiors
  • ✅ Long Grain Construction – stronger, smoother, and cleaner to cut
  • ✅ White Factory Primer (Both Faces + Edges) – saves time on-site
  • ✅ Sheet Size: 2440 x 1220mm (8x4ft)
  • ✅ Thickness: 9mm
  • ✅ Trade-ready quality, ideal for spray or brush finishes

Built for speed, consistency, and performance — MoistureGuard™ is the perfect panel for high-spec, moisture-prone interiors.

50 reviews for MoistureGuard™ Long Grain MDF – P5 Moisture-Resistant, White Primed (9mm)

  1. Lily J. –

    The primer saved a step, though one board had a slight warp.

  2. Olivia V. –

    Accurate sizing and edge finish. Some areas needed touch-up before top coat.

  3. Liam S. –

    Ideal for built-in wardrobes. Just needed a light sanding before final coat.

  4. Isla X. –

    Used in a bathroom fit-out — held up great in a humid space.

  5. Liam P. –

    Surface had a few scuffs through the primer layer. Slowed us down.

  6. George U. –

    Worked well for utility room panels. Would be perfect with better packaging.

  7. Charlie Z. –

    Priming could be improved — needed extra sanding in a few spots.

  8. Sophie A. –

    Used in a bathroom fit-out — held up great in a humid space.

  9. Ben K. –

    Primed finish is even and professional. Great time-saver for our interior work.

  10. Jack L. –

    Ideal for built-in wardrobes. Just needed a light sanding before final coat.

  11. Charlie H. –

    Used in a bathroom fit-out — held up great in a humid space.

  12. Evie X. –

    The primer saved a step, though one board had a slight warp.

  13. Ben X. –

    Expected better quality control. Some sheets slightly bowed.

  14. Evie W. –

    Worked well for utility room panels. Would be perfect with better packaging.

  15. Lily M. –

    The primer saved a step, though one board had a slight warp.

  16. Lily G. –

    Primed finish is even and professional. Great time-saver for our interior work.

  17. Charlie E. –

    Could be packed better, but overall a decent board.

  18. Harry T. –

    Excellent board, already primed and ready to go. Saved us hours on site.

  19. Harry H. –

    Ideal for built-in wardrobes. Just needed a light sanding before final coat.

  20. Ben C. –

    Really impressed with the consistency and smooth finish. Took paint beautifully.

  21. Jessica T. –

    Worked well for utility room panels. Would be perfect with better packaging.

  22. George Z. –

    Really impressed with the consistency and smooth finish. Took paint beautifully.

  23. Evie K. –

    Ideal for built-in wardrobes. Just needed a light sanding before final coat.

  24. Chloe E. –

    Good quality, no swelling or bowing. Will be ordering again for our next job.

  25. Emily T. –

    Worked well for utility room panels. Would be perfect with better packaging.

  26. Sophie R. –

    Accurate sizing and edge finish. Some areas needed touch-up before top coat.

  27. Jack V. –

    Good quality, no swelling or bowing. Will be ordering again for our next job.

  28. Emily C. –

    Priming could be improved — needed extra sanding in a few spots.

  29. Olivia Y. –

    Could be packed better, but overall a decent board.

  30. Emily X. –

    Used in a bathroom fit-out — held up great in a humid space.

  31. Jack U. –

    Worked well for utility room panels. Would be perfect with better packaging.

  32. Oliver D. –

    Excellent board, already primed and ready to go. Saved us hours on site.

  33. Jessica W. –

    Worked well for utility room panels. Would be perfect with better packaging.

  34. Amelia B. –

    Ideal for built-in wardrobes. Just needed a light sanding before final coat.

  35. Olivia H. –

    Used in a bathroom fit-out — held up great in a humid space.

  36. Ben Z. –

    Ideal for built-in wardrobes. Just needed a light sanding before final coat.

  37. Thomas E. –

    Solid board with good moisture resistance. A little dusty to cut, but great finish.

  38. Harry J. –

    Really impressed with the consistency and smooth finish. Took paint beautifully.

  39. Oliver F. –

    Used in a bathroom fit-out — held up great in a humid space.

  40. Olivia C. –

    Expected better quality control. Some sheets slightly bowed.

  41. Harry Z. –

    Used in a bathroom fit-out — held up great in a humid space.

  42. Jack H. –

    Used in a bathroom fit-out — held up great in a humid space.

  43. Olivia D. –

    Used in a bathroom fit-out — held up great in a humid space.

  44. Lily J. –

    Not bad, though a few boards had slightly inconsistent primer coverage.

  45. Olivia T. –

    Excellent board, already primed and ready to go. Saved us hours on site.

  46. Evie W. –

    Really impressed with the consistency and smooth finish. Took paint beautifully.

  47. Grace B. –

    Accurate sizing and edge finish. Some areas needed touch-up before top coat.

  48. Isla K. –

    Worked well for utility room panels. Would be perfect with better packaging.

  49. James C. –

    Good quality, no swelling or bowing. Will be ordering again for our next job.

  50. George B. –

    Worked well for utility room panels. Would be perfect with better packaging.

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