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When it comes to outdoor flooring, porcelain tiles have gained immense popularity due to their durability, low maintenance, and stunning aesthetics. To ensure the longevity and stability of porcelain paving, selecting the right grout is crucial. In this blog, we will compare two prominent outdoor grout options for porcelain tiles: the Pavetuf porcelain grout and the GftK ranges, examining their features, benefits, and suitability for various applications.
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When selecting a porcelain grout, there are several key features that one would want to prioritise for a successful and long-lasting tile installation. First and foremost, excellent stain resistance is crucial to maintain the grout's pristine appearance in outdoor and high-traffic areas prone to spills and dirt. Additionally, water repellency or water permeability is essential to prevent moisture infiltration, especially in outdoor spaces subject to weather changes and frost. A grout with durability and strength ensures the grout lines remain stable and intact, providing structural support and resistance to wear and tear. Ease of application is also desirable, making the installation process smoother and more efficient for both professionals and DIY enthusiasts. Moreover, a range of colour options enables one to choose a grout that complements the tiles, enhancing the overall aesthetics of the space. Finally, UV stability to resist colour fading from sunlight exposure may also be significant considerations in selecting the ideal porcelain grout.
Price: £43
User Guide | Data Sheet
Colour Options:
Black, Grey, Buff
Tub Size:
9kg, comprising 3 x 3kg individual bags
Typical Coverage:
Approx. 21 square metres (coverage based on 600x600mm size paving with a 20mm deep x 5mm wide joint)
Suitability:
Porcelain & ceramic only. Internal and external use, flooring, paving, driveways & walls
Features:
Rapid setting, mould resistant, suitable with underfloor heating, water repellant, for joint widths 1-15mm, stain resistant, fine non-granular appearance
Installation Method:
Mix powder with clean water to form a thick creamy paste using a slow speed drill and paddle. Grout is usable for around 30-40 minutes. Work into the joints using a grouting trowel, squeegee or sponge. Allow to set for 30 minutes and clean off tile surface with a damp sponge.
Ready for Use:
Tiled and paved areas ready for light foot traffic after approx 3 hours and full traffic after 24 hours.
Price: £91
User Guide
Stone Grey, Natural Sand, Basalt
10kg, comprising 1 part aggregate and 1 part binder
Coverage:
Approx 10 square metres (coverage based on 600x600mm size paving with a 20mm deep x 5mm wide joint)
External use, paving including porcelain and natural stone and light vehicular use
For joint widths >3mm, stain resistant, fine sand-like appearance, can be installed in low temperatures and rain
Pre-mix the aggregate, then add the binder and mix with a drill with paddle attachment. No water should be added. Apply immediately onto a pre-wetted surface and squeegee into the joints, whilst keeping the area wet with a hose. Remove any excess immediately with water.
Paved areas ready for light foot traffic after around 24 hours or until no longer tacky. Suitable for vehicular use after 3-5 days.
Price: £155
25kg, comprising 1 part resin coated aggregate and 1 part hardener
Approx 45 square metres (coverage based on 600x600mm size paving with a 20mm deep x 5mm wide joint)
External use, paving including porcelain, natural stone and concrete. Medium vehicular use include small commercial vehicles
The strongest paving grout available, suitable for paving refurbishment. Joint widths from 5mm upwards
Pre-mix the resin coated aggregate, then add the hardener and mix with a drill with paddle attachment. No water should be added. Apply immediately onto a pre-wetted surface and squeegee into the joints, whilst keeping the area wet with a hose. Remove any excess immediately with water.
Epoxy grout, brush-in mortar, and slurry grout are three different materials used for filling gaps and joints between porcelain paving tiles. Each type of grout has its own characteristics, advantages, and ideal applications:
Epoxy Grout - GftK 815 and 850:
Brush-In Mortar (Dry Mix Jointing) - not shown above as not normally used for porcelain:
Jointing Grout (Traditional Paste Grout) - Pavetuf Jointing Grout:
The choice between epoxy grout, brush-in mortar, slurry grout and jointing grout for porcelain paving depends on factors such as the specific project requirements, budget constraints, desired aesthetics, and the expected level of traffic and exposure to water and chemicals. For high-traffic areas or spaces exposed to water and harsh conditions, epoxy grout is typically the preferred choice due to its superior strength and durability. For outdoor areas with moderate traffic and more budget-conscious projects, brush-in mortar or slurry grout can be suitable options.
In summary, both the Pavetuf Jointing Grout and the GftK vdw 815 plus and vdw 850 plus offer outstanding features and benefits. The Pavetuf grout, available in various colours, is rapid-setting, stain-resistant, and suitable for joint widths from 1-15mm, making it ideal for both internal and external use. On the other hand, the GftK vdw 815 plus provides a fine sand-like appearance, is suitable for larger joint widths, and can be installed in low temperatures and rain. The GftK vdw 850 plus stands out as the strongest paving grout available, with its suitability for medium vehicular use and joint widths from 5mm upwards.
To conclude, the choice of grout will depend on specific project requirements, budget considerations, desired aesthetics, and the expected level of traffic and exposure to water and chemicals. With the right grout selection, your porcelain paving will not only retain its beauty but also endure the tests of time and weather. As you embark on your outdoor flooring journey, consider these grout options to ensure a successful and lasting porcelain tile installation that will elevate the appeal and functionality of your outdoor space for years to come.
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