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Complete your tiling projects with Dunlop Adhesive’s high-quality grouts and silicone sealants. Our range includes flexible, water-resistant formulations in 8 matching colors, designed to provide long-lasting, professional results. Whether you’re working on walls, floors, wet areas, or exterior surfaces, Dunlop Adhesives has the perfect solution to finish your job right the first time.
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GX-500 Flexible Grout
A flexible wall and floor grout available in eight colours with matching silicones. For use with ceramic, porcelain, natural stone and mosaic tiles.
Explore our grout FAQs to find quick answers to common questions, including application guidelines and best practices for achieving optimal results.
Q: Which Dunlop grout should I use for my project?
Always check the product data sheet for specific applications and compatibility with your tile type.
Q: Can I use the same grout for walls and floors?
Yes, Dunlop GX-500 Flexible Grout is suitable for both wall and floor applications.
Floor grout generally needs to be more durable to withstand foot traffic. Always ensure your chosen grout is rated for the intended use.
Q: What grout should I use in wet areas like showers?
For showers and wet areas we recommend Dunlop GX-500 Flexible Grout. It’s water resistant and contains properties to help prevent mould growth. For added protection in high-moisture environments, consider using Dunlop Flexible Additive (diluted 1:2 with water) with your grout mix.
Q: How much grout do I need?
The amount of grout required depends on:
As a general guide, for a 300mm x 300mm x 7mm tile with 3mm joints, you’ll need approximately 0.25kg/m² of Dunlop Floor & Wall Grout or 0.38kg/m² of Dunlop GX-500 Flexible Grout. Refer to the product packaging or technical data sheet for specific coverage information.
Q: What tools do I need for grouting?
Essential grouting tools:
Q: How do I apply Dunlop grout?
Q: How long should I wait before grouting after tiling?
Wait until your tile adhesive is completely dry before grouting:
For standard adhesives such as Dunlop CF-24: wait 24 hours
For fast-setting adhesives such as Dunlop CF-03: wait 3 hours
Always refer to the adhesive manufacturer’s instructions for specific drying times.
Q: How long does grout take to dry?
Dunlop GX-500 Flexible Grout requires a minimum of 24 hours to set properly. However, in wet areas such as showers, allow at least 2 weeks before use to ensure complete curing. Swimming pools should not be filled for at least 3 weeks after grouting.
Q: Should I seal my grout?
Most Dunlop grouts, including GX-500, have water-resistant properties, but sealing can provide additional protection against staining and moisture. Consider sealing in high-traffic areas, kitchens, and bathrooms for added durability.
Q: Why does my grout look patchy or discoloured?
Patchy or discoloured grout can be caused by:
To avoid this when using Dunlop grouts, ensure consistent mixing, use minimal water during clean-up and maintain consistent application techniques throughout your project.
Q: How do I clean my grout once it's installed?
For regular maintenance of Dunlop grouts:
For stubborn stains, a specialist tile and grout cleaner can be used according to the manufacturer’s instructions.
Q: Can I add Dunlop Flexible Additive to my grout?
Yes, adding Dunlop Flexible Additive can enhance the performance of your grout, particularly in:
For most applications, mix 1 part Flexible Additive to 2 parts water, then use this solution instead of plain water when mixing your grout.
Q: What's the minimum joint width I should use?
For wall tiles, the recommended minimum joint width is 2 mm. For floor tiles, a minimum of 3mm is recommended. However, the appropriate joint width may vary depending on the type of tile and installation area. Larger format tiles usually require wider joints to allow for natural movement.
Q: Can I grout over existing grout?
No, applying new grout over old grout is not recommended. The new grout won’t bond properly and is likely to crumble. For best results, remove at least half the depth of the old grout before applying fresh Dunlop grout.
For technical assistance on any Dunlop grouting product, please contact the Dunlop Technical Helpline on 01782 591120.
Q: Where should I use Silicone Sealant?
British Standards advise the use of silicone in all vertical and horizontal internal corners where movement between surfaces is expected.
Which Dunlop silicone sealant should I use?
Dunlop FX-90 Silicone Sealant is ideal for most tiling applications. It’s available in 8 colours that match Dunlop GX-500 Flexible Grout, ensuring a coordinated finish to your project. The colour options are:
For natural stone applications, check compatibility first, as some silicones can cause staining on porous materials.
“When working with Dunlop GX-500 Flexible Grout, only mix what you can use in about 45 minutes, but once mixed, leave the grout to stand for 2-3 minutes before remixing. This ‘slaking’ time helps to achieve the perfect consistency.
When applying silicone with Dunlop FX-90, remember that less is often more – a concave profile in corners performs much better than a flat or convex bead. This concave shape creates what we call a ‘concave joint’, which not only looks cleaner, but also provides greater flexibility to absorb movement. It also uses the silicone more efficiently as the thinner edges maintain strong adhesion while the slightly deeper centre allows for maximum stretch.”
Lewis Lupton – Head of Training and Technical Support
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