However, using a primer is almost always worth the extra effort. The primer adds a layer between your raw surface and subsequent coats of paint. On porous surfaces, this smooths out the surface, avoiding the need for unnecessary coats of paint later and an uneven final result.

Depressions or surface blemishes in the paint film. A common cause is rain that has fallen on the surface before the film has had chance to fully dry. Putting it right It will need to be built up in layers, for the best results. Leaving 6 hours for the filler to dry between each layer. Industry Connections: We maintain close ties with manufacturers and brands, offering insights into trends and upcoming products. Universal primer can be used on bare wood, metal, plaster, and masonry, so is a great option if you’re painting multiple surfaces around the house. Apply this primer with a brush or roller.

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The reward could be well worth it and there is no need to get a plaster involved. Filling an Artex Wall

Tiles Clean with sugar soap, then wipe over with white spirit to get rid of any dirt and soap scum. Use a specialist glass, tile or difficult-surface primer followed by paint, or Ronseal One-Coat tile paint (which needs no primer).This dead wood must be completely removed by rubbing it down to new sound wood. If outside, the wood can then be primed with Weathershield Exterior Preservative Primer followed by the Weathershield Undercoat& Gloss. Rotten wood Cause Softwood can be especially prone to resin exudation, where the natural resin comes to the surface, staining the wood. This resin makes it difficult for paint to adhere to the wood. Apply an aluminium primer to your wood if this happens. The primer will stop the resin from seeping through and compromising your paint system. Universal wood/metal primers can be used on new wood, masonry, metal, and plaster, inside and outside. Apply with a brush and clean with white spirit afterwards. Primers for Plaster It’s imperative to use a primer on bare plaster. This image shows what happens if you paint straight onto bare plaster without priming with a mist coat first. Like water-borne primer, solvent-borne primer can be used on interior and exterior surfaces, including woodwork, cement, and building boards. This primer can be applied with a brush, roller, or spray. As solvent-borne primer is oil-based, you will need to clean your equipment with white spirit or brush cleaner. Spirit-based primer can be used on indoor and outdoor surfaces. The shellac-based primer is great for sealing over stains and odour on interior walls and ceilings, and can be used for spot-priming exterior surfaces. Apply with a brush, roller, or spray. Metal Specific Primers