Tips for Using MDF Outdoors: How to Make MDF Waterproof and Paintable.

2023-04-19 10:02:28 By : admin
When it comes to selecting the right material for outdoor furniture or cabinetry, the first consideration is whether the material can withstand the harsh outdoor conditions. One popular material used in such applications is Medium-density Fibreboard (MDF). However, while MDF is a versatile and affordable option for indoor use, its ability to withstand moisture and humidity outdoors is questionable.

Fortunately, manufacturers have developed a new type of MDF called waterproof MDF that addresses this issue. Waterproof MDF is specially treated to offer resistance to moisture, making it suitable for use in areas that are prone to dampness and humidity. This new material is becoming increasingly popular for outdoor use, especially in applications like kitchen and bathroom cabinetry, garden furniture, and outdoor decking.
Waterproof Mdf - How To Discuss


One of the significant advantages of waterproof MDF is that it is easy to paint. The exterior surface of this material is smooth enough to receive paint without preparation. However, when painting outdoor items with waterproof MDF, there are a few general recommendations that you should consider to achieve optimal results.

The first recommendation is to ensure that the surface is clean and dry before painting. Dirt, dust, or grease on the surface can affect the adhesion of the paint, leading to an uneven finish. Therefore, it's essential to clean the surface thoroughly using soap and water or an appropriate cleaner. Once clean, the surface should be left to dry completely.

The second recommendation is to use good quality paint that is specifically designed for outdoor use. Choose a paint that offers protection against UV rays and has a high degree of waterproofing to prevent the paint from peeling or fading due to exposure to sunlight and water.

In addition to these general recommendations, it's also essential to avoid using microporous lacquers on waterproof MDF. Microporous lacquers have a porous finish that allows moisture to penetrate the surface, which can result in the MDF absorbing water and swelling. Instead, use a paint that forms a non-porous seal on the surface, preventing moisture from seeping into the material.

In conclusion, MDF can be used outdoors, provided that it is treated appropriately. Waterproof MDF is an excellent option for outdoor use due to its resistance to moisture and humidity. For optimal results when painting waterproof MDF, ensure that the surface is clean and dry, use high-quality outdoor paint, and avoid using microporous lacquers. By following these recommendations, you can achieve a beautiful finish that is durable enough to withstand the challenges of outdoor use.