Choosing the Right Paint for Exterior Walls

With so many paint types and brands available, how do you choose the right one?

This guide explains the different types of exterior paint, compares some of South Africa's leading brands, and helps you decide where it's worth spending a little more.

Why Exterior Paint Matters

South African homes are exposed to a wide range of weather conditions.

• The Western Cape experiences wet winters, coastal moisture and strong winds.

• Gauteng has hot summers, intense UV exposure and cold winter nights.

• KwaZulu-Natal combines high humidity with coastal salt air.

• The Northern Cape experiences some of the country's highest temperatures.

Your exterior paint needs to withstand these conditions while protecting the plaster or brickwork underneath.

A quality paint system can often last 10 to 15 years before repainting is required, while lower-quality products may begin showing signs of deterioration within a few years.

Types of Exterior Paint

Not every paint is designed for the same purpose.

Acrylic Paint

Acrylic paint is the most popular choice for exterior walls.

Advantages include:

• Excellent UV resistance

• Flexible finish that resists cracking

• Good colour retention

• Easy to clean

• Water-based with low odour

• Suitable for most plastered surfaces

For most South African homes, a quality acrylic paint is the preferred option.

Acrylic PVA Paint

Many manufacturers offer exterior PVA paints.

These are generally more affordable than premium acrylic products and perform well on many residential projects.

Quality varies considerably between manufacturers, so it's worth choosing a reputable brand instead of simply selecting the cheapest option.

Elastomeric Coatings

These specialised coatings are designed to bridge small hairline cracks in plaster.

They are often recommended for:

• Older homes

• Coastal properties

• Buildings exposed to heavy weather

Although more expensive, they provide excellent long-term protection where minor movement or cracking is expected.

Textured Coatings

Textured paints contain coarse aggregates that help conceal minor surface imperfections.

They are often used on:

• Boundary walls

• Garden walls

• Commercial buildings

• Older plastered surfaces

Because they create a thicker protective layer, they generally last well but require more paint during application.

Understanding Paint Quality

Paint isn't simply "paint."

Manufacturers usually offer several quality levels.

Economy Range

Best suited for:

• Boundary walls

• Garden sheds

• Temporary projects

Advantages:

• Lower purchase price

Disadvantages:

• Lower coverage

• Shorter lifespan

• More coats often required

• Reduced UV resistance

Mid-Range Paint

Suitable for most residential homes.

Advantages:

• Good durability

• Better colour retention

• Reliable weather resistance

• Excellent value for money

For many homeowners, this represents the best balance between cost and performance.

Premium Paint

Designed for maximum durability.

Benefits include:

• Excellent UV resistance

• Superior colour retention

• Better dirt resistance

• Longer repainting intervals

• Improved protection against moisture

Although premium paints cost more initially, they often provide the lowest long-term cost because they require repainting less frequently.

Popular Exterior Paint Brands in South Africa

South Africa has several well-established paint manufacturers, each offering products at different price points.

Dulux

Dulux is one of the country's best-known paint brands and offers a wide range of exterior products.

Known for:

• Premium quality

• Excellent colour selection

• Strong UV protection

• Long-lasting finishes

Ideal for homeowners looking for proven long-term performance.

Plascon

Plascon remains one of South Africa's most recognised paint brands.

Their exterior range includes products suited to both budget-conscious projects and premium homes.

Known for:

• Good durability

• Wide colour range

• Reliable availability

• Strong reputation

Prominent Paints

Prominent Paints has built a reputation for producing high-quality decorative coatings.

Their exterior products are often selected by professional contractors because of their excellent coverage and finish.

Duram

Duram specialises in protective coatings and waterproofing products.

They are particularly well known for:

• Waterproof coatings

• Roof paints

• Crack-bridging products

• Coastal applications

Fired Earth

Fired Earth offers decorative paints aimed at homeowners seeking premium colours and finishes.

They are often selected for architectural homes and renovations where appearance is a key consideration.

Which Paint Is Best?

There is no single "best" paint.

The right product depends on:

• Your budget

• Local climate

• Existing wall condition

• Desired lifespan

• Surface type

For most homeowners, choosing a quality mid-range or premium exterior acrylic paint from a reputable manufacturer provides the best balance between performance and value.

Don't Forget the Primer

Even the best paint won't perform properly without adequate surface preparation.

Before painting:

• Repair cracks.

• Remove loose paint.

• Clean dirt and mould.

• Allow damp walls to dry.

• Apply the correct primer where required.

Skipping preparation often results in poor adhesion and premature paint failure.

How Much Does Exterior Painting Cost?

The total cost depends on:

• Wall area

• Surface condition

• Number of coats

• Labour costs

• Paint quality

• Accessibility

While premium paint costs more per litre, it often provides better coverage and lasts several years longer than economy products.

In many cases, spending a little more on quality paint can reduce your maintenance costs over the life of your home.

Should You Buy the Cheapest Paint?

Choosing the cheapest paint can sometimes become the most expensive decision.

Lower-quality products may require:

• Additional coats

• More frequent repainting

• Increased maintenance

• Earlier replacement

When labour forms a significant portion of the project cost, investing in better-quality paint often provides greater value than saving a small amount on materials.

Tips for Choosing the Right Exterior Paint

Before purchasing paint, consider the following:

• Choose a paint specifically designed for exterior use.

• Match the product to your local climate.

• Don't compromise on surface preparation.

• Use the manufacturer's recommended primer.

• Compare coverage rates, not just the price per litre.

• Consider the expected lifespan of the paint.

• Buy from reputable suppliers to ensure genuine products.

Final Thoughts

A fresh coat of exterior paint is one of the most effective ways to protect and enhance your home, but not all paints offer the same level of performance.

For most South African homes, a quality exterior acrylic paint from a reputable manufacturer such as Dulux, Plascon, Prominent Paints or Duram offers an excellent balance of durability, weather resistance and long-term value. While economy paints may appear attractive because of their lower price, premium products often provide better coverage, retain their colour for longer, and reduce the frequency of repainting.

Choosing the right paint is only part of the equation. Proper surface preparation, using the correct primer, and following the manufacturer's application instructions are just as important to achieving a durable, long-lasting finish.