Whether you're a seasoned DIYer or a first-time decorator, navigating the world of paint can sometimes feel like learning a new language. From emulsions to primers, undercoats to topcoats, we've put together a handy glossary-style guide to answer the most common paint-related questions.

What is Emulsion Paint?

Emulsion paint is a water-based paint that’s most commonly used for interior walls and ceilings. It's quick-drying, easy to clean with water, and typically low in odour. Emulsions come in various finishes, such as matt, silk, and soft sheen, depending on the look and durability you want.

What is the Difference Between Matt and Gloss Paint?

Matt paint has a flat, non-reflective finish that helps to hide imperfections, making it ideal for ceilings and low-traffic areas. Gloss paint, on the other hand, has a high sheen and is very reflective, which makes it suitable for doors, skirting boards, and areas that need to withstand regular cleaning.

What is a Primer and Why Do I Need One?

Primer is a preparatory coating applied before painting. It helps paint adhere better to the surface, provides a uniform base colour, and can prevent issues like peeling or staining. It's especially important when painting over bare wood, metal, or newly plastered walls.

What is Undercoat Paint?

Undercoat is typically used on wood and metal surfaces as a layer between the primer and the topcoat. It creates a smoother, more even base, especially when changing colours dramatically. Undercoat helps improve the finish and durability of your final topcoat.

What is a Topcoat?

The topcoat is the final layer of paint you apply, providing both the desired colour and the finish (e.g. matt, satin, or gloss). It’s what you see and touch when the job is done, so choosing a good quality topcoat is key to a long-lasting result.

What is Satin Paint?

Satin is a type of paint finish that sits between matt and gloss. It has a subtle sheen and is more durable than matt, making it suitable for areas like hallways, kitchens, or bathrooms where some wipe-clean resistance is helpful.

What Does 'Sheen Level' Mean?

Sheen level refers to how shiny or reflective the paint appears once dry. It ranges from flat matt (no shine) to high gloss (very shiny). The higher the sheen, the more durable and washable the surface tends to be - but it also means imperfections might be more visible.

What is Chalk Paint?

Chalk paint is a decorative paint known for its matte, chalky appearance. It’s especially popular for upcycling furniture, as it often requires little surface preparation and can be sanded back easily for a distressed, vintage look.

What is the Difference Between Oil-Based and Water-Based Paints?

Oil-based paints are durable and provide a smooth, glossy finish, making them ideal for trim and doors. However, they have a strong smell and take longer to dry. Water-based paints, such as emulsions, are easier to work with, quicker drying, and better for the environment.

What is Colour Fastness in Paint?

Colour fastness refers to how resistant a paint is to fading over time, especially when exposed to sunlight. High-quality paints are formulated to retain their colour for longer, helping to keep your walls looking fresh and vibrant for years.

What is Masonry Paint?

Masonry paint is specially formulated for exterior surfaces like brick, concrete, and stone. It’s weather-resistant, breathable, and often includes ingredients to prevent algae or mould growth. If you’re sprucing up your home’s kerb appeal, this is the paint you’ll want.

We hope this blog has helped clear up some of the common questions around paint and finishes. A little knowledge goes a long way when it comes to planning your next decorating project. Whatever your style or surface, Hemway has the tools to help you transform your space with confidence and creativity.

       The Hemway Team

By Sarah Spragg
Published: 06 May 2025
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