Things You Did Not Know about Sealing Bluestone Pavers

Bluestone pavers are a beautiful addition to any outdoor space, but their porous nature makes them susceptible to stains, fading, and damage from the elements.

Neglecting to seal your bluestone pavers properly can lead to costly repairs or replacements down the line, not to mention compromising their stunning appearance.

By learning the secrets to effective sealing, you can protect your investment and keep your bluestone pavers looking their best for years to come.

1. Enhanced Colour and Appearance

Sealing bluestone pavers significantly enhances their natural colour and texture, bringing out the stone’s inherent beauty. 

When applied, sealers penetrate the stone’s surface, intensifying its colour and revealing intricate patterns and textures that might otherwise be subdued. This process creates a richer, more vibrant appearance, making the pavers look polished and well-maintained.

Different types of sealers offer distinct visual effects:

For example, penetrating sealers:

• Enhance the stone’s natural look without adding gloss
• Make colours appear deeper and more pronounced
• Retain a matte finish, ideal for those preferring subtle enhancement

On the other hand, topical sealers:

• Form a protective layer on the surface
• Result in a glossy or semi-glossy finish
• Amplify colour and provide a shiny, wet-look appearance, adding elegance to outdoor spaces

2. Protects Against Stains and Spills

Sealing bluestone pavers plays a crucial role in protecting against stains and spills, ensuring the longevity and aesthetic appeal of the stone. 

When a sealer is applied, it creates a barrier that prevents liquids and other substances from penetrating the porous surface of the bluestone. This barrier is essential for maintaining the stone’s pristine condition and preventing unsightly stains.

Sealing can protect against a wide range of stains, including:

• Oil Stains: Common in driveways and outdoor kitchens, oil from vehicles or cooking can leave dark, stubborn marks.
• Food and Beverage Stains: Spills from items such as wine, coffee, and sauces are quickly absorbed by the unsealed stone, causing discolouration.
• Organic Stains: Leaves, flowers, and other organic materials can decompose, leaving tannin stains on the surface.
• Rust Stains: Metal furniture and fixtures can oxidize and transfer rust onto the pavers.

3. Increases Longevity and Durability

Sealing bluestone pavers significantly increases their longevity and durability, ensuring they remain in excellent condition for years. The application of a sealer provides a protective layer that shields the stone from various damaging elements, thereby extending its lifespan.

Sealing helps pavers resist weathering and environmental factors such as:

• Water Infiltration: Sealers prevent water from penetrating the stone, reducing the risk of freeze-thaw damage, which can cause cracking and spalling in colder climates.
• UV Radiation: Exposure to sunlight can fade the natural colour of bluestone over time. Sealing offers UV protection, preserving the stone’s vibrant appearance.
• Erosion: Wind and rain can gradually erode the surface of unsealed bluestone, leading to a worn and uneven appearance. Sealers create a barrier that minimizes this erosion.
• Moss and Algae Growth: Damp conditions can promote moss and algae growth, making the surface slippery and unsightly. Sealed surfaces inhibit this growth by keeping moisture out.

4. Prevents Water Damage and Erosion

Sealing bluestone pavers effectively prevents water damage and erosion by creating a robust barrier against water penetration. 

Bluestone is naturally porous, meaning it can absorb water, which leads to various issues over time. When sealed, a protective layer forms on the surface, blocking water from infiltrating the stone.

Key benefits of sealing include:

• Barrier Against Water Penetration: Prevents water from entering the stone, reducing the risk of water-related damage.
• Protection Against Freeze-Thaw Cycles: Water inside the stone expands when frozen, causing cracks and spalling. Sealing minimises water absorption, reducing freeze-thaw damage
• Erosion Resistance: Shields the stone from constant exposure to rain and wind, preserving its smooth finish and aesthetic appeal.

5. Makes Cleaning Easier

Sealing bluestone pavers effectively prevents water damage and erosion by creating a robust barrier against water penetration. 

Bluestone is naturally porous, meaning it can absorb water, which leads to various issues over time. When sealed, a protective layer forms on the surface, blocking water from infiltrating the stone.

Making Cleaning Easier: The Benefits of Sealing Bluestone Pavers

• Repels Dirt and Grime: Sealant creates a barrier that prevents dirt, dust, and other debris from penetrating the porous surface of the bluestone, making it easier to sweep or rinse away.
• Resists Stains: Spills and splatters won’t soak in as easily, reducing the risk of stubborn stains that require harsh chemicals and vigorous scrubbing to remove.
• Deters Moss and Algae: The sealant helps to keep the surface clean and dry, creating an environment that is less hospitable to moss, algae, and mildew growth.
• Simplifies Maintenance: With sealed pavers, routine cleaning often involves a simple sweep and occasional wash with mild soap and water, saving you time and effort.
• Preserves the Beauty: By protecting against stains and unwanted growth, sealing helps to maintain the natural beauty and color of your bluestone pavers for years to come.

6. Reduces Efflorescence

Efflorescence, a common issue with bluestone pavers, occurs when soluble salts within the stone migrate to the surface, leaving behind a white, powdery residue. This not only mars the appearance but also compromises the integrity of the pavers over time. 

Sealing bluestone effectively reduces efflorescence by:

• Creating a Barrier: Sealing forms a protective barrier that inhibits water and salt penetration into the stone.
• Preventing Moisture Seepage: Unsealed bluestone allows moisture to seep into its pores, dissolving salts present in the stone.
• Blocking Salt Migration: A quality sealant blocks moisture ingress, preventing the salts from reaching the surface and thus minimizing efflorescence formation.
• Preserving Aesthetic Appeal: By minimizing efflorescence, sealing preserves the visual appeal of bluestone installations.
• Ensuring Longevity: Sealing bluestone pavers acts as a proactive measure to ensure the longevity and durability of the surface.

7. UV Protection

Bluestone, like any natural stone, is susceptible to fading and discoloration over time due to exposure to ultraviolet (UV) radiation from the sun. This can lead to a dull, washed-out appearance and detract from the overall beauty of your outdoor space.

Sealing your bluestone pavers can provide crucial UV protection. Many sealers contain UV-resistant properties that act as a barrier against the sun’s harmful rays. This helps to preserve the natural color and vibrancy of the stone, preventing it from fading or becoming discolored over time.

Types of Sealers with UV-Resistant Properties

• Acrylic Sealers: These sealers are known for their excellent UV resistance and are a popular choice for bluestone pavers.
• Penetrating Sealers: While not all penetrating sealers offer UV protection, some premium brands do contain UV-resistant additives.
• Hybrid Sealers: These sealers combine the benefits of both acrylic and penetrating sealers, often offering superior UV protection.

8. Eco-Friendly Sealing Options

Sealing your bluestone pavers doesn’t have to come at the cost of the environment. In recent years, there has been a growing demand for eco-friendly sealers, and manufacturers have responded with a variety of options that are both effective and environmentally responsible.

These eco-friendly sealers are typically water-based and contain low or no VOCs (volatile organic compounds), which are harmful chemicals that can contribute to air pollution. They also often utilize natural ingredients and avoid harsh solvents, making them safer for both humans and the environment.

Benefits of Using Eco-Friendly Sealers

• Reduced Environmental Impact: By choosing eco-friendly sealers, you can minimize your environmental footprint and contribute to a healthier planet.
• Improved Air Quality: Low or no VOC sealers help to improve indoor and outdoor air quality, reducing the risk of respiratory problems and other health issues.
• Safer for Application: Eco-friendly sealers are typically less harsh and irritating to the skin and respiratory system, making them safer to apply.
• Comparable Performance: Many eco-friendly sealers offer comparable performance to traditional sealers in terms of protection, durability, and longevity.

Conclusion

Sealing your bluestone pavers isn’t just about aesthetics; it’s a multifaceted investment in their protection and longevity. 

From combating efflorescence to shielding against UV rays, the benefits are clear. Don’t let your pavers deteriorate prematurely. Embrace sealing and unlock the full potential of your bluestone investment.