The Best Grout Sealer in 2021

The Best Grout Sealer in 2021


  • based on 400+ ratings

Best Value

SRP Grout Sealer

  • based on 100+ ratings

  • based on 200+ ratings

It’s a well-known fact that grout is the unsung hero of the tile world. It can make or break your wall, countertop or floor, so it’s important to keep an eye on how dirty and damaged it gets over time. A good grout sealer can help combat this issue by providing a protective layer between dirt and grime and your tiles, preventing any further damage from occurring. This article will go through our top 8 best grout sealers in 2021 for you to choose from! Let’s get into it!

Our Best Grout Sealer Picks

At our top spot, we have chosen the HG Super Protector Wall and Colourless Grout Sealer. This grout sealer dries completely colourless, providing a transparent protection against water, grease, oil, and dirt. This grout sealer is made from oil paint that dries on top of the grout, leaving a strong, impenetrable, yet smooth layer.

The bottle comes with its own ergonomically designed sealer applicator or pipette, making the process more streamlined and reducing any mess. After application, it’s recommended that you leave to dry fully for around 24 hours for wall tiles, and roughly 36-48 hours for floor tiles. Following this, surfaces can then be cleaned in the usual way afterwards.

Key Features

  1. Makes grout water, oil, grease and dirt repellent
  2. Absolutely colourless for a transparent protection
  3. A pipette is included
  4. After 36-48 hours the surface can be cleaned again in the usual way

Specification

  • Brand: HG
  • Model: 244025105
  • Volume: 250ml

A colourless barrier spray, the LTP Grout Sealer & Tile Protector Spray is designed for optimal use in wet rooms and shower enclosures. It helps protect porous wall and floor grout joints from being affected by water, dirt, grease, and limescale, making treated surfaces easier to keep clean.

It can also be used as an easy buffer to further protect natural stone and other types of masonry surfaces. The good thing about this sealer is that overspray on most surfaces will dissipate quickly, instead of leaving unsightly marks on your tiles.

Key Features

  1. Easy to apply and quick-drying
  2. Long-lasting protection against water, dirt, grease, mould and limescale
  3. Suitable for both wall and floor grout
  4. Overspray dries invisible

Specification

  • Brand: L2P
  • Model: LTP/15/.6
  • Volume: 600ml

The LTP Mattstone Grout Sealer is a natural finish impregnating sealer that delicately enhances colour and texture whilst protecting against staining, and repelling water, grease, and oil. It provides a natural matte finish that allows surfaces to breathe, with minimal change to the surface character. This sealer is suitable for both interior and exterior use.

It can be used in wet areas, and on a variety of surfaces including slate, sandstone, terracotta, unpolished marble, travertine, and cement. Once applied, it dries after approximately 2 hours, but takes a further three days to become fully resistant to water, oil, and grease.

Key Features

  1. Repels water, oil and grease
  2. Provides a natural, matt finish and enhances the colour and texture of the tile
  3. Suitable for internal and external use.
  4. For use on travertine, stone, sandstone, slate, marble, terracotta, quarry tiles, brick and paving

Specification

  • Brand: L2P
  • Model: ‎LTP/12/1
  • Volume: 1L

This spray-on aerosol sealer is suitable for indoor and outdoor use, and forms a clear, colourless protective barrier once applied. It leaves no hard-to-remove residue and helps to protect almost all porous wall and floor grout joints, as well as tiles, natural stone, and masonry surfaces.

Whilst it’s ideal for any bathroom or kitchen, it’s perfectly suitable for use on any surface with tiles and grout – especially wet rooms and shower enclosures. Once applied, it seals grouted areas with long-lasting protection against water, dirt, oil, grease, and limescale, and makes these surfaces easier to keep clean.

Key Features

  1. Forms a clear, colourless protective barrier
  2. Helps protect wall and floor porous grout joints, tiles, natural stone and masonry surfaces
  3. Protects from penetration of water, dirt, oil, grease and limescale
  4. Suitable for interior or exterior use
  5. Spray-on and quick-drying

Specification

  • Brand: SRP
  • Model: TLL-9024
  • Volume: 500ml

This trigger-spray sealer is best for applying to surfaces with residual humidity. It’s ideal for cementitious grouts, as it prevents water and stains from being absorbed into the surface of the grout. It’s more environmentally friendly than other grout sealers on the market; it’s made from a type of VOC-free, water-based technology that makes the product less taxing on the environment, without compromising on its effectiveness.

The spray comes ready to use, is easy to apply, prevents water and stain penetration, and doesn’t alter the colour of the grouting once applied. As it’s a water-based product, it allows for longer time gaps between treatments.

Key Features

  1. Protects and sanitizes grout joints
  2. Prevents water and stains from being absorbed into the surface
  3. Ready to use and easy to apply

Specification

  • Brand: FUGAPROOF
  • Model: 8008980000654
  • Volume: 750ml

Here is another water-based spray grout sealer that gives long-lasting protection and is easy to apply, simply by flipping up the top and pressing the spray handle. It gives off very little odour, penetrates porous grout deeply when applied, and also bonds with it chemically. This provides a long-lasting, invisible barrier that extends the life of your grout.

It is safe for use on any type of grout and can be used both indoors and outdoors. This spray is great for repelling water, food stains, grease, mould, mildew, and more. One of the best things about this product though, is that it is completely colourless and protects the natural colour of the grout, rather than altering it like some other grout sealing products.

Key Features

  1. Easy to Apply
  2. Safe for white and coloured grout
  3. Protects against staining

Specification

  • Brand: Black Diamond
  • Model: 8008980000654
  • Volume: 450ml

Popular Grout Sealer FAQs

Does grout sealer really work?

Yes, grout sealer can work very well. Applying a grout sealer product will protect your grout making it water-resistant as well as repelling germs and bacteria too. Sealing your grout also helps extend its life by maintaining its appearance, texture and consistency, so grout sealer really does work and you should plan on getting some.

What is the best way to seal grout?

We have actually made a guide on how to seal grout for your shower. Ultimately most products methods will vary to a degree, especially depending on the type of grout sealer you go for. Generally, however, sealing grout consists of cleaning and drying the grout surface, applying the grout sealer and waiting for it to dry.

Does tile grout need to be sealed?

If possible, it is recommended that you seal your grout immediately after installation. In addition, you should seal your grout once a year or so to ensure that it is protected, preserved and kept looking great. If you don’t seal your grout, it’s colour will fade quicker, it could let in moisture and bacteria and could lead to damage to the group as well as your tiles, so it is definitely a good idea to seal tile grout.

What is the best grout sealer to use in a shower?

Our best grout sealer pick was the HG Colourless Grout Sealer. It is colourless and resistant to water and dirt, making it perfect for sealing your shower grout.

What happens if grout sealer dries on tile?

Most grout sealer products are clear and colourless so you wouldn’t notice it very much if it dried on your tiles. However, if you have opted for a grout sealer that is not colourless when you are applying it ensure you keep a damp cloth nearby so that you can wipe the excess grout sealer off of your tiles.

How long does grout sealer last?

Most decent grout sealers should last around a year or so, which is why we recommend that you reseal your grout every year to ensure it is consistently protected. This will also make sure that your grout lasts for a long time and stays looking brand new.