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Our moisture-resistant MDF boards are well-suited for use in environments that are prone to humidity and high moisture levels, such as bathrooms, kitchens, or utility rooms. Water-resistant MDF is engineered with hydrophobic substances throughout the fibres that repel water and prevent moisture absorption. Waxes and resins create a water barrier within the wood fibres. This allows the MR MDF to withstand spills, splashes and high ambient humidity without swelling, rippling or loss of bond strength that occurs in regular MDF whilst retaining the smooth machinability of standard MDF sheets.
While not completely waterproof, MR MDF demonstrates significantly improved water resistance and dimensional stability in damp conditions. The enhanced moisture protection expands the possibilities for MDF in new wet applications.
With a slight green tint, MR MDF offers a smooth, consistent surface that machines and finishes beautifully. The enhanced durability retains high bond strength for overlays and laminates. Painted MR MDF achieves a flawless factory-finished look.
Our moisture-resistant MDF is also now available to be primed on one, or both sides of your sheet making our moisture-resistant MDF ideal for painting. For more information on what MDF to choose for your project, see our guide ‘Choosing the Right MDF’.
Additionally, the light and smooth surface of our moisture-resistant MDF sheets makes it easy to mark up for cutting or sanding down, and it can be cut into various shapes and forms with ease using an electric saw, router, or handsaw. Please note that when cutting MDF, appropriate protection must be worn due to the dust particles MDF can create.
Our moisture-resistant MDF is ranked with the Euroclass D Fire Rating, though if you require MDF to prevent the spread of fire, please see our flame-retardant MDF which can prevent the spread of fire by up to half an hour.
Using our cut to size 18mm moisture resistant MDF, Kanza (@handmadehome_durham on Instagram) upcycled her IKEA KALLAX. After cutting the MDF into arches, she primed and painted it with Farrow and Ball Hague Blue.
We collaborated with Kerry (sunnysideourourstreet on TikTok and Instagram) on her kitchen panelling project. We supplied her with Moisture Resistant MDF to update her panelling, and it is much quicker to paint than our standard MDF!
Material | Wood - MDF |
Finish | Moisture Resistant (Unfinished) |
Available Thicknesses | 6mm, 9mm, 12mm, 18mm, 22mm, 25mm |
Maximum Sheet Size | 2420mm x 1220mm |
Minimum Sheet Size | 100mm x 50mm |
Fire Rating | Euroclass D Fire Rating |
Moisture Content | 0.5-0.8% |
Manufacturers Tolerances | +/- 10% plus 0.4mm (e.g. 5mm cast sheet could vary from 4.1mm to 5.9mm) |
Cutting Tolerances | +/- 1mm |
For the full technical details, download the manufacturer's datasheet here:
With a slight green tint, water-resistant MDF, also known as MR MDF, contains a moisture-repellent resin that provides increased resistance to humidity. Waxes and resins create a water barrier within the wood fibres. As a result of this, our MR MDF is ideal for use in high-humidity areas or areas of high moisture.
Thinner sheets, like 6mm and 9mm MR MDF, are good for lightweight panels, overlays and cabinet components. Medium thicknesses like 12mm and 18mm MR MDF are very versatile for furniture, cabinets, shelving and built-ins. The thickest 25mm MR MDF provides extra durability for heavy-duty furniture tops, worktops, and shelving.
Not all MDF is moisture-resistant. MDF is a porous material, and moisture-resistant sheets prevent the MDF sheets from warping or being affected by moisture.
Often chosen for its inexpensive cost to create furniture, MDF can be painted to add some character or personality to any piece. You can find out more in our guide: How to Paint MDF
Moisture-resistant MDF sheets are already resistant to moist areas and humidity, however, you can improve their hydrophobia by coating them in an appropriate waterproof primer or paint.
Plywood uses waterproof glues but can still separate when wet. MR MDF retains its form and strength better than wood-based boards. We offer a range of marine plywood boards if MDF isn't suitable for your project.
Delivery depends on the size of your order
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