Medium-density fiberboard, or MDF Framing Moulding, has become a popular choice for interior mouldings due to its smooth surface, ease of machining, and affordability. Although it does not have a natural wood grain like solid wood, its uniform structure allows for various surface finishing techniques to be applied effectively. These treatments not only improve aesthetics but also offer protection against moisture, wear, and environmental exposure.

Here are the most common surface treatment methods used for mouldings made from this material:

1. Primer Coating

Priming is often the first step in surface treatment. MDF surfaces are highly absorbent, especially on the edges, making an initial primer coat essential to seal the surface. Primers designed for MDF typically have high solids content, allowing them to fill small imperfections and create a smoother finish. Once primed, the moulding can accept a wide range of topcoats.

Many manufacturers offer pre-primed mouldings to save time during installation and finishing. These products come ready for painting, helping contractors achieve a consistent, professional look with minimal preparation.

2. Painting

Painting is one of the most widely used surface treatments. Latex or acrylic paints are commonly used for interior applications. Once properly primed, the moulding can be coated with one or more layers of paint to match any room’s design scheme. Semi-gloss and high-gloss finishes are popular because they are easier to clean and more resistant to minor wear.

Painting also adds a level of protection against humidity, although it doesn’t make the core of the material water-resistant unless sealed thoroughly.

3. Veneering

Veneering involves applying a thin slice of real wood or laminate over the surface. This technique gives MDF mouldings the appearance of genuine hardwood, such as oak or maple, while maintaining a lower cost. Veneered mouldings can be stained and finished like solid wood, offering both aesthetic appeal and enhanced surface strength.

However, veneered options may require more care in high-traffic areas, as the thin surface layer can be more prone to damage than thicker solid wood.

4. Melamine Laminate

Melamine is a durable, plastic-based laminate that can be bonded to the surface of MDF. This type of finish is resistant to scratches, stains, and moisture, making it ideal for mouldings in kitchens, bathrooms, or utility rooms. Melamine surfaces are typically smooth and glossy, though textured or matte variants are also available.

This treatment is best suited for areas where durability and low maintenance are priorities.

5. PVC Foil Wrapping

Some manufacturers apply heat-shrinkable PVC foil wraps to give mouldings a wood-like texture or modern solid color look. This finish is commonly used in modular furniture and low-maintenance decorative trim. PVC wrapping offers excellent resistance to moisture and fading, and it does not require painting or refinishing.

It’s an ideal solution for environments where a consistent appearance and moisture protection are needed without the extra work of surface preparation.

Conclusion

The versatility of MDF Framing Moulding is greatly enhanced by the variety of surface treatment options available. From simple priming and painting to advanced laminates and veneers, each method offers unique aesthetic and protective benefits. Selecting the appropriate finish depends on the intended use, location, and desired appearance. With the right surface treatment, this cost-effective material can deliver both performance and style in a wide range of interior applications.

Molding Use: Picture Frame

Material: PS

Color: Light Grain

Width: 2cm

Height: 1.6cm

Robbet: 1.1cm

Length: 3m