The Ultimate Guide to Paints: Types, Uses & How to Choose the Right One
Whether you’re refreshing a tired living room, protecting an outdoor fence, or embarking on a full home renovation, choosing the right paints can make or break your project. With hundreds of formulas, finishes, and brands on the market, the decision can feel overwhelming — even for experienced decorators. But it doesn’t have to be.
This guide breaks down everything you need to know about paints: from understanding the difference between water-based and oil-based formulas, to picking the perfect finish for every room in your home. We’ll cover interior and exterior options, specialty applications, and the key factors that separate a cheap, flaking coat from a long-lasting, professional result.
At BBC Paint, we believe that informed choices lead to beautiful outcomes. Whether you’re a DIY enthusiast tackling your first project or a professional decorator, this comprehensive resource will help you navigate the world of paints with confidence and clarity.
Let’s get started.
Direct Answer Box
What are paints?
Paints are liquid or semi-liquid substances applied to surfaces to provide colour, protection, and decoration. They typically consist of four components: a pigment (for colour), a binder (to hold pigment together), a solvent (to adjust consistency), and additives (for special properties like mould resistance or quick drying). Once applied and dried, the solvent evaporates, leaving a durable, coloured film on the surface.
Understanding the Basics: What Paints Are Made Of
Before choosing a paint, it helps to understand what’s actually inside the tin. Every paint product — regardless of brand or price — is built from the same four fundamental components:
1. Pigments
Pigments provide colour and opacity. Titanium dioxide is the most common white pigment, known for its excellent coverage and brightness. Coloured pigments are blended in to create the thousands of shades available today.
2. Binders
Binders (also called resins) hold the pigment together and help the paint adhere to surfaces. The type of binder determines whether a paint is oil-based or water-based — and significantly affects durability, sheen, and drying time.
3. Solvents
Solvents keep the paint in liquid form during application. In water-based paints, the solvent is water. In oil-based paints, it’s typically mineral spirits or turpentine. Once the paint dries, the solvent evaporates.
4. Additives
These are the “secret ingredients” — preservatives, thickeners, anti-mould agents, and UV stabilisers that give specialist paints their unique properties.
The Two Main Types of Paints
Water-Based Paints (Emulsions and Acrylics)
Water-based paints are the most popular choice for interior walls and ceilings. They’re low in VOCs (volatile organic compounds), dry quickly, and are easy to clean up with soap and water. Modern acrylic formulas have dramatically improved in durability, making them competitive with oil-based alternatives in many applications.
Best for: Interior walls, ceilings, light woodwork, and low-traffic areas.
Advantages:
- Fast drying (1–2 hours to touch dry)
- Low odour
- Easy clean-up
- Environmentally friendlier
Oil-Based Paints (Alkyds and Enamels)
Oil-based paints use a petroleum-derived solvent and alkyd resin as a binder. They’re known for their incredibly hard, durable finish — making them ideal for high-traffic surfaces, furniture, and outdoor woodwork. However, they take longer to dry and emit higher levels of VOCs.
Best for: Doors, window frames, skirting boards, radiators, and exterior metalwork.
Advantages:
- Extremely durable finish
- Superior adhesion on challenging surfaces
- High sheen levels possible
- Better for blocking stains
Paint Finishes Explained: From Matte to Gloss
One of the most confusing aspects of buying paints is understanding the difference between finishes. Here’s a quick breakdown:
| Finish | Sheen Level | Best For |
|---|---|---|
| Flat/Matte | None | Ceilings, low-traffic walls |
| Eggshell | Slight | Bedrooms, hallways |
| Satin | Medium | Living rooms, children’s rooms |
| Semi-Gloss | High | Kitchens, bathrooms, trim |
| Gloss | Very High | Doors, woodwork, furniture |
Pro tip from BBC Paint: Higher sheen finishes are more washable and moisture-resistant, but they also highlight surface imperfections. Always prepare surfaces thoroughly before applying gloss or semi-gloss paints.
Interior vs. Exterior Paints: What’s the Difference?
Many homeowners assume interior and exterior paints are interchangeable. They’re not — and using the wrong type can lead to premature peeling, cracking, or fading.
Interior Paints
Formulated for controlled environments, interior paints prioritise:
- Resistance to scrubbing and staining
- Low odour and VOC levels
- Colour accuracy under artificial lighting
Exterior Paints
Exterior formulas are engineered to withstand the elements. They include:
- UV stabilisers to resist fading from sunlight
- Fungicides and algaecides to prevent mould and algae growth
- Flexible binders that expand and contract with temperature changes
[STAT] According to a 2023 report by Grand View Research, the global architectural paint and coatings market was valued at over $78 billion USD and is projected to grow at a CAGR of 4.3% through 2030, driven largely by increased residential renovation activity.
Specialty Paints: Beyond the Basics
Modern paints have evolved far beyond simple wall colours. Here are some specialist options worth knowing about:
Kitchen and Bathroom Paints
These are moisture-resistant formulas infused with anti-mould additives. They maintain a washable, wipeable finish even in humid conditions — essential for spaces exposed to steam and splashes.
Primer and Undercoat
Primers are the unsung heroes of any paint job. A quality primer:
- Improves adhesion on bare surfaces
- Seals porous materials like new plaster
- Prevents stains from bleeding through topcoats
Always use a primer before applying paints to bare wood, new plaster, or previously stained surfaces. [Explore BBC Paint’s range of primers and undercoats]
Chalk and Mineral Paints
Popular for upcycling furniture and achieving a rustic, vintage aesthetic, chalk paints are ultra-matte and require little to no surface preparation. They’re water-based, low-VOC, and exceptionally easy to distress for aged effects.
Floor Paints
Specially formulated with hardeners and abrasion-resistant pigments, floor paints can transform concrete garage floors, garden steps, and wooden floorboards. Look for formulas rated for foot or vehicle traffic.
Fire-Retardant and Anti-Graffiti Paints
Used primarily in commercial settings, these specialist paints offer important safety and maintenance benefits in schools, public buildings, and industrial environments.
How to Choose the Right Paint: A Step-by-Step Approach
Feeling lost in the paint aisle? Follow this simple decision framework:
Step 1: Identify the Surface
Is it interior or exterior? Porous or smooth? New or previously painted? Each surface type has specific requirements.
Step 2: Consider the Environment
High humidity (bathrooms, kitchens)? High traffic (hallways, stairs)? Exposed to sunlight? Match the paint’s technical properties to the demands of the environment.
Step 3: Choose Your Finish
Use the finish guide above. Remember: practical needs come before aesthetics — especially in family homes.
Step 4: Calculate Coverage
Most paints cover between 10–15 square metres per litre, per coat. Always apply a minimum of two coats for even, durable results. Measure your surface area and buy 10% extra to account for wastage.
Step 5: Prepare the Surface
No paint — regardless of quality or cost — will perform well on a dirty, flaking, or unprimed surface. Clean, sand, fill, and prime before you pick up the brush.
[STAT] A study by the Paint Quality Institute found that 90% of paint failures are caused by inadequate surface preparation rather than the paint itself — reinforcing that preparation is the single most important step in any decorating project.
BBC Paint’s Top Tips for a Flawless Finish
- Stir thoroughly — pigment settles at the bottom of the tin. Stir for at least two minutes before use.
- Use the right tools — quality brushes and rollers make a measurable difference in finish quality.
- Don’t overload your brush — thin, even coats dry faster and more smoothly than thick, heavy applications.
- Work in natural light — artificial lighting masks uneven coverage and missed patches.
- Allow full cure time — most paints feel dry to the touch within hours but take 2–4 weeks to fully cure and reach maximum hardness.
[Shop BBC Paint’s professional decorating tools and accessories]
Environmental Considerations: Choosing Eco-Friendly Paints
Sustainability is increasingly important to consumers — and the paint industry has responded. Look for these indicators of a greener product:
- Low or Zero VOC labelling
- Water-based formulas over solvent-based
- Recycled or sustainably sourced packaging
- Third-party eco-certifications (e.g., EU Ecolabel, Nordic Swan)
[STAT] The European Environment Agency estimates that decorative paints account for approximately 25% of all VOC emissions from consumer products in Europe — making the switch to low-VOC formulas a meaningful environmental choice for homeowners.
[Discover BBC Paint’s eco-friendly and low-VOC paint range]
Frequently Asked Questions
1. How many coats of paint do I need?
Most surfaces require a minimum of two coats for full, even coverage. New plaster, bare wood, or dramatic colour changes (especially from dark to light) may need three or more coats. Always allow each coat to dry fully before applying the next.
2. What’s the difference between paint and primer?
Primers are designed to seal surfaces and improve adhesion, while paints provide colour and the decorative finish. Some products are marketed as “paint and primer in one” — these can work well for minor touch-ups, but for best results on challenging surfaces, use a dedicated primer first.
3. How long does paint last in the tin?
An unopened tin of paint can last up to 10 years if stored correctly (at room temperature, away from frost and direct sunlight). Once opened and resealed, it typically remains usable for 2–5 years. Always check for skinning, lumps, or off smells before reusing old paint.
4. Can I use interior paint outside?
No. Interior paints lack the UV stabilisers, fungicides, and flexible binders needed to withstand outdoor conditions. Using interior paint externally will result in rapid fading, cracking, and peeling — often within a single season.
5. How do I dispose of old paint responsibly?
Never pour paint down the drain or into general waste. Options include: donating usable paint to community schemes or charities, taking dried paint tins to your local recycling centre, or using a specialist paint disposal service. Many local councils offer guidance on responsible disposal.
Conclusion
From understanding the chemistry inside the tin to choosing the right finish for a bathroom wall, navigating the world of paints doesn’t have to be complicated. The key takeaways? Always match your paint type to the surface and environment, never skip surface preparation, and choose a quality product from a trusted supplier.
At BBC Paint, we stock a comprehensive range of interior, exterior, and specialist paints to suit every project — from small DIY jobs to large-scale professional contracts. Our expert team is always on hand to help you find the perfect product for your needs.
Ready to start your next project? Browse the full BBC Paint range online today, or visit your nearest stockist for personalised advice and colour matching. Your perfect finish is closer than you think.
