Concrete sealing is the process of applying a protective coating to the surface of the concrete to help prevent damage and deterioration caused by exposure to water, chemicals, and other elements. Sealing concrete can help to extend its lifespan and improve its appearance.

The process of Concrete Sealing in Melbourne involves cleaning and preparing the surface of the concrete, and then applying a sealer using a sprayer, roller, or brush. The sealer penetrates the surface of the concrete and creates a barrier that helps to prevent water, oil, and other substances from penetrating the surface and causing damage.

Concrete sealing is commonly used for outdoor areas such as driveways, patios, and pool decks, as well as indoor spaces such as garages and basements. It is an important part of concrete maintenance and can help to protect and prolong the lifespan of the surface.

Types of Concrete Sealers 

Concrete sealers are used in concrete resurfacing in Melbourne and are available in different types and formulations, including acrylic, epoxy, and polyurethane that fall under film-forming sealers whereas the penetrating sealers include siloxane sealers, silicate sealers, acrylic, and epoxy sealers. The type of sealer used will depend on the specific needs of the project of concrete sealing in Melbourne, such as the level of protection required and the intended use of the concrete surface.

Film Forming Sealers

Film-forming concrete sealers are a type of sealer that creates a protective film or coating on the surface of the concrete. This film can help to protect the concrete from moisture, stains, and other types of damage.

There are several types of film-forming concrete sealers, including acrylics, epoxies, and urethanes. Acrylic sealers are a popular choice for many applications because they are easy to apply and relatively inexpensive. They are also available in a range of sheen levels, from matte to high gloss.

1. Acrylic Sealers 

Acrylic sealers are a type of coating that is commonly used to protect and enhance the appearance of various surfaces. They are typically made from a mixture of acrylic resins, solvents, and other additives. Acrylic sealers are often used on concrete, wood, and other porous surfaces, as they can help to seal and protect the surface from moisture, stains, and other types of damage.

Acrylic sealers come in a variety of formulations, including water-based and solvent-based options. Water-based acrylic sealers are typically easier to apply and clean up, and they tend to have a lower VOC (volatile organic compounds) content than solvent-based sealers. Solvent-based acrylic sealers are often more durable and provide a higher level of protection, but they can be more difficult to work with and may require more extensive safety precautions.

Pros of Acrylic Sealers 

Acrylic sealers can be applied using a variety of methods, including spraying, brushing, or rolling. They are often used on interior and exterior surfaces, such as floors, countertops, walls, and decorative objects. When applied properly, acrylic sealers can help to enhance the natural colour and texture of the surface, while also providing a layer of protection that is the reason for Concrete Resurfacing in Melbourne and in extending the life of the surface.

Cons of Acrylic Sealers 

Along with the benefits come the disadvantages. Acrylic sealers too have certain disadvantages like limited resistance to high temperatures, abrasion, and scratches, difficulty in removal, volatile organic compound emissions, etc. it’s important to understand all the pros and cons of the concrete sealing in Melbourne before making the final decision. 

  1. Epoxy Sealers

Epoxy sealers are a type of concrete sealer that creates a hard, durable, and glossy surface on the concrete. They are typically used in industrial, commercial, and high-traffic areas because of their resistance to abrasion, chemicals, and water.

Epoxy sealers are made up of two components, a resin, and a hardener, that are mixed immediately before application. The mixture is then applied to the concrete surface and allowed to cure for a specified period. Once cured, the epoxy creates a hard, glossy surface that is resistant to staining, abrasion, and chemical damage.

Pros of Epoxy Sealers

One advantage of epoxy sealers is their versatility. They can be applied to both interior and exterior surfaces, including floors, walls, and countertops. They can also be tinted or coloured to create a variety of decorative effects.

Another advantage of epoxy sealers is their low porosity. This makes them an effective barrier against moisture and prevents water from penetrating the surface of the concrete, which can lead to damage and deterioration.

Cons of Epoxy Sealers

However, one potential drawback of epoxy sealers is their sensitivity to UV light. When exposed to sunlight, epoxy sealers can yellow or become discoloured over time. To prevent this, it is important to use a UV-resistant sealer or to apply a top coat of a UV-resistant material over the epoxy sealer.

3. Urethane Sealers 

Urethane sealers are a type of protective coating used to seal and protect surfaces, such as concrete, wood, metal, and other materials. Urethane sealers are made from polyurethane resins, which offer superior protection against abrasion, chemicals, UV rays, and weathering.

Urethane sealers are commonly used in the construction industry for concrete sealing in Melbourne, countertops, and walls, as well as in automotive applications to protect car finishes from wear and tear. They are also used in woodworking to seal and protect furniture and other wooden objects.

Urethane sealers come in various formulations, including water-based, solvent-based, and high-solids. Water-based urethane sealers are more environmentally friendly and easier to clean up than solvent-based sealers, while high-solids formulations provide a thicker and more durable coating.

Pros of Urethane Sealers 

Urethane sealers are known for their excellent adhesion, durability, and resistance to staining and yellowing. They can be applied with a brush, roller, or sprayer, and can be used on both interior and exterior surfaces.

Cons of Urethane Sealers

While urethane sealers have a lot of benefits, still there are many cons that need to be considered like volatile organic compounds, high costs, slipperiness, discolouration, and application challenges. 

Penetrating Sealers

Penetrating sealers are a type of surface coating that penetrates the pores of a material, forming a protective barrier that helps to prevent damage from moisture, stains, and other types of environmental factors. Unlike topical sealers that sit on the surface of a material, penetrating sealers chemically react with the material to create a bond that provides long-lasting protection.

Here are some common types of penetrating sealers:

  • Silicate sealers

Silicate sealers are made from a mixture of water and potassium or sodium silicate. When applied to a surface, the silicate reacts with the calcium hydroxide in the material to form a hard, crystalline structure that fills the pores and increases the strength and durability of the material. Silicate sealers are often used on concrete and masonry surfaces.

  • Silane/siloxane sealers

Silane and siloxane sealers are made from a mixture of silicon-based compounds that penetrate the pores of a material and create a hydrophobic barrier that repels water and other liquids. These types of sealers are often used on brick, stone, and other porous surfaces.

  • Acrylic sealers

Acrylic sealers can also penetrate the pores of a material and create a protective barrier that helps to prevent moisture and staining. Unlike other types of penetrating sealers, acrylic sealers also create a glossy or matte finish that enhances the appearance of the surface.

  • Epoxy sealers

Epoxy sealers are made from a two-part resin that penetrates the pores of the material and creates a strong, durable surface that is resistant to abrasion, chemicals, and other types of damage. Epoxy sealers are often used on concrete surfaces in industrial or commercial settings.

Penetrating sealers offer many benefits over other types of sealers, including increased durability, resistance to staining and moisture, and improved appearance. However, it's important to choose the right type of sealer for the specific material and application to ensure optimal performance and longevity.

Final Thoughts 

If you have any queries, are interested in concrete sealing, or need assistance in choosing the right one out of all the available choices, get in touch with Premium Concrete Resurfacing and book a session with our experts.