Identify the surface and follow the current instructions for your exact products. Do not sand or strip uncertain old coatings. Read the safety guide before disturbing materials.
The surface comes first
Two tins marked eggshell can be very different products. One may be a wall finish; another may be designed for wood and metal. Sheen describes how a coating reflects light, not what it will stick to or how well it will resist cleaning.
Write down what you are coating, whether it is indoors or outdoors and what it must withstand. Then choose a product approved for those conditions.
| Finish or system | Where it can suit | Check before buying |
|---|---|---|
| Matt emulsion | Interior walls and ceilings | Ordinary matt and durable washable matt have different cleaning resistance. |
| Durable matt or eggshell for walls | Busy rooms, hallways and suitable kitchens | Check scrub resistance and suitability for humid rooms. |
| Woodwork eggshell or satin | Doors, skirtings and interior trim | Use a trim product with the correct primer, not wall paint of the same sheen. |
| Gloss for trim | Woodwork where a reflective finish is wanted | Shows preparation defects. Binder, cure and primer compatibility matter. |
| Exterior wood or metal system | Outdoor joinery or metalwork | Choose for the substrate, movement, corrosion and weather exposure. |
| Masonry paint | Suitable exterior render and masonry | Not a universal choice for old lime or sandstone. Investigate moisture first. |
| Limewash or mineral system | Compatible mineral surfaces and some traditional buildings | Substrate, existing layers and whole wall moisture behaviour decide suitability. |
Water based and solvent based are not quality grades
Modern water based trim paints often offer quicker drying and lower odour, but they still need suitable preparation and time to cure. Solvent based systems have different ventilation, clean up and drying requirements. Neither category guarantees adhesion or durability by itself.
For a kitchen or bathroom, check the actual moisture and cleaning resistance. A suitable wall coating is not a waterproof lining for the inside of a shower. Ventilation and sound building details matter more than a label promising easy cleaning.
Judge the finish in the room
Higher sheen usually reveals more surface defects and reflects more light. A matt surface can be visually forgiving, but cleaning resistance varies between products. Test the exact finish where possible; a matt sample pot will not show you how a satin wall or door will reflect daylight.
Common mistakes
- Putting wall emulsion on doors because the colour matches.
- Choosing solely by brand or price.
- Assuming every traditional wall should receive ordinary masonry paint.
Get advice before coating lime plaster, salt damaged walls, unknown historic finishes or surfaces with persistent moisture.
Sources & further reading
Original general guidance from Aethos, informed by the resources below. These references cover relevant safety, materials or techniques, not a specification for your property. Product examples are not paid recommendations.
- Farrow & Ball: paint finishes (opens in a new tab)
Different products and sheen levels for different surfaces. Check the current product advice sheet.
- Zinsser: AllCoat Exterior Satin (opens in a new tab)
A product example covering exterior substrates, preparation and application conditions, not a universal recommendation.
- SPAB: limewash (opens in a new tab)
Traditional finishes, suitable substrates and caring for older buildings.