When it comes to tile protection in bathrooms, balconies, and other wet areas, grout plays a much bigger role than just holding tiles together. It acts as a barrier against moisture, dirt, and bacteria. But with all the different types of grouts available, we often get asked: Is epoxy grout waterproof? And how does it compare to traditional tile grouts like cement?

Whether you’re renovating, building, or simply looking to prevent water damage, understanding the differences can help you make a smarter, longer-lasting choice.

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What Is Epoxy Grout?

Unlike traditional grout, which is usually made from a mix of cement, sand and water, epoxy grout is composed of epoxy resins and a filler powder. This gives it a dense, non-porous structure that resists water, stains, and chemicals more effectively than standard options.

Thanks to its durability and low maintenance, epoxy grout is often used in:

• Bathroom and showers
• Balconies and outdoor tiled areas
• Commercial kitchens and healthcare settings
• Any space exposed to high levels of moisture

So, Is Epoxy Grout Waterproof?

The short answer is yes; epoxy grout is waterproof. It doesn’t absorb water like cement-based grout, making it ideal for areas prone to heavy moisture. Once cured, it creates a tight, sealed joint between tiles that helps keep water out and stops mould or mildew from forming.

That said, it’s important to understand that while epoxy grout is waterproof, the entire tile system (including the substrate and waterproofing membrane) must also be properly installed.

Benefits of Using Epoxy Grout

Choosing epoxy grout over traditional tile grout comes with several key benefits:

• Water resistance – Perfect for wet areas like bathrooms and balconies
• Stain resistance – Less likely to absorb dirt, grime or soap scum
• Durability – Does not crack or crumble as easily under pressure or building movement
• Longer lifespan – Fewer repairs and less need for replacement over time.

At Megasealed we recommend and use epoxy grout in regrouting and waterproofing projects because it offers a lasting solution for both residential and commercial properties.

What About Maintenance?

Epoxy grout is easier to clean than cement grout, but it does require proper installation for best results. Once installed, it only needs regular surface cleaning with a gentle, non-acidic cleaner. Harsh chemicals or abrasive scrubbing pads should be avoided, as they can break down the grout’s surface over time.

We use our own Megasealed-formulated products, including a eucalyptus oil-based cleaner that is safe for epoxy grout and the surrounding tiles.

Protect Your Tiled Areas with Megasealed

Whether you are dealing with old, crumbling grout or want to future-proof your wet areas, we can help you regrout and reseal your space using our exclusive Megagrout, a long-lasting formula designed for everyday moisture exposure.

Don’t wait until it’s too late. Talk with our team today to organise a free inspection and quote.

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