You can manage without (of course), but you’ll use more paint without priming it, and to get a decent finish you’ll use a _lot_ more paint. As always with MDF, avoid anything water-based until there’s a good seal on the surface – otherwise you raise fibres like crazy.Click to see full answer. Similarly one may ask, do I need to prime MDF before painting?You should always apply two to three coats of primer before you attempt to paint MDF. For the best results, you can lightly sand the MDF between coats of primer. Allow at least an hour before you start painting, otherwise, the primer may not be totally dry. It’s a good idea to prime both sides of a piece of MDF.Likewise, can you paint straight onto MDF? Painting MDF or Medium Density Fibreboard is not an easy job. The paint dries so quickly that it can dry in a very uneven and blotchy way. Special primers, such as the one below, are available for MDF and once applied the timber can then be painted with any ordinary paint. what is the best primer for MDF? Using a Paint Primer For MDF: Primers used for MDF should be solvent rather than water-based. (lacquer or enamel, rather than acrylic). Stain covering primers (Zisser makes one in a spray can) have a heavier body and can be used for the edges as well as flat and detailed surfaces.Can I use water based primer on MDF?MDF easily absorbs water, and water-based paints and primers make the wood fibers swell. You can sand the fibers down, but sanding may not fully repair the damage. This is not an issue with non-water-based primers. Two coats of primer are best, particularly for the cut edges of the wood.

ncG1vNJzZmivp6x7pLHLnpmroaSesrSu1LOxZ5ufonuotI6cmKdlmWK9orXNrWSmnJZixKrAx6isrWWgp7ausdFmaWg%3D