Litokol Starlike® Pro in the color Ardesia (10) is a 6th generation decorative epoxy grout that combines aesthetics and technical performance at the highest level. The deep-gray color of slate — tough, durable, and timeless, brought together in a color that transforms your tile or stonework into a finished whole. With 200 million colored quartz microspheres per kilogram and a water absorption of ≤ 0.1 g (EN 12808-5), this product delivers both visual depth and uncompromising durability.
In short
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6th generation epoxy formula — two-component system based on epoxy resin provides adhesion that cement grout cannot match, ideal for surfaces under long-term stress such as bathroom floors and terraces.
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Waterproof: absorption ≤ 0.1 g (EN 12808-5) — moisture, mold, and bacteria stand no chance; the grout remains fresh and hygienic for years without periodic impregnation.
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Antimicrobial certified (ISO 22196) — active protection against bacterial growth and surface contamination, indispensable in kitchens, swimming pools, and healthcare facilities.
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Working time > 90 minutes — ample open time for professionals and DIY enthusiasts to carefully finish large areas or complex patterns without time pressure.
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HACCP/EC 852/2004 certified — suitable for direct contact with food and drinking water; used in professional kitchens, hospitality establishments, and swimming pools.
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Temperature resistant from -20°C to +100°C — functions without problems on heated floors, in saunas, hammams, and on unprotected outdoor terraces throughout all seasons.
Applications
Starlike® Pro Ardesia is designed for demanding environments where ordinary cement grout falls short. In the bathroom, it provides a waterproof, mold-free joint that lasts for decades — even on heated floors. On the outdoor terrace, it resists frost, UV radiation, and rainwater without discoloration or crumbling. In the swimming pool and hammam, the epoxy base offers maximum resistance to chlorine and water vapor. Professional kitchens and hospitality establishments benefit from the HACCP certification for hygienically responsible use. Also suitable for tiny houses, compact apartments, and guest toilets where every millimeter makes a visible design statement.
Design & color: Ardesia
The deep-gray color of slate — tough, durable, and timeless. The color Ardesia (code 10) fits perfectly with interior styles such as Modern Industrial, Dark Academia, Urban Loft. Combine with black steel, dark concrete, smoked glass, anthracite wood for a coherent interior picture that exudes both personality and sophistication. Industrial bathrooms, dark design showers, and restaurant toilets are ideal spaces where this color shows its full potential. The quartz microspheres in the grout give the color a subtle depth that cannot be achieved with standard cement grout — the result is a finish that feels like a conscious design choice, not an afterthought.
Technical superiority
Where traditional cement grout remains porous and darkens, fades, or crumbles over time, Starlike® Pro forms a closed, non-porous matrix after curing. The abrasion resistance of ≤ 250 mm³ (EN 12808-2) means that the grout is resistant to intensive foot traffic, hard-soled shoes, and industrial cleaning machines. Shrinkage is limited to ≤ 1.5 mm/m (EN 12808-4), making cracks and loose joints a thing of the past. The double certification as RG (EN 13888) and R2T (EN 12004) makes this product applicable as both grout and thin-bed adhesive, which makes it project-flexible for tiles, mosaics, and natural stone.
Tips for the best result
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Preparation is everything: ensure that the tile surface is completely dry, dust-free, and grease-free before you begin. Use a pH-neutral cleaner and allow to dry for at least 24 hours after removing any residue.
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Correct mixing ratio: mix components A and B exclusively in the provided ratio and use an electric mixer at low speed (max. 300 rpm) for a homogeneous mass without air bubbles.
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Joint size 1–20 mm: Starlike® Pro is optimized for joint widths in this range. Before starting, check whether your tile pattern and joint depth fall within this specification.
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Clean quickly and thoroughly: remove excess grout within 30–45 minutes after application with a damp sponge and clean water. After full curing (24–48 hours), removal is significantly more difficult.
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Underfloor heating: do not reactivate the heated floor until at least 48 hours after grouting. Then gradually increase the temperature to minimize thermal stresses in the joint surface.
Technical specifications
| Feature |
Value |
Standard |
| Color code |
10 — Ardesia |
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| Product type |
Decorative epoxy grout, 6th generation |
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| Classification |
RG / R2T |
EN 13888 / EN 12004 |
| Package content |
2.5 kg (also available in 5 kg) |
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| Joint size |
1 – 20 mm |
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| Water absorption |
≤ 0.1 g |
EN 12808-5 |
| Shrinkage |
≤ 1.5 mm/m |
EN 12808-4 |
| Abrasion resistance |
≤ 250 mm³ |
EN 12808-2 |
| Chemical resistance |
Class RG |
EN 12808-3 |
| Working time |
> 90 minutes |
— |
| Temperature resistance |
-20°C to +100°C |
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| Antimicrobial |
Certified |
ISO 22196 |
| Food safe |
Certified |
HACCP / EC 852/2004 |
| UV resistant |
Yes |
— |
| Suitable for underfloor heating |
Yes |
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| Suitable for outdoor use |
Yes |
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| Suitable for swimming pool / hammam |
Yes |
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| Packaging |
Post-consumer recycled plastic |
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| Designer color palette |
Piero Lissoni — "The Colours of the Earth" |
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Frequently asked questions
Is Starlike® Pro Ardesia suitable for use on the floor?
Yes. The abrasion resistance of ≤ 250 mm³ (EN 12808-2) and the shrinkage of ≤ 1.5 mm/m (EN 12808-4) make this product excellently suitable for floor applications, including high-traffic areas such as hallways, kitchens, and commercial environments.
Can I use this grout in combination with underfloor heating?
Absolutely. Starlike® Pro is temperature resistant up to +100°C and remains stable during the thermal cycles that a heated floor undergoes. Wait at least 48 hours after grouting before reactivating the heating.
How do I maintain a grout in Ardesia color?
Daily maintenance is sufficient with a damp cloth or a pH-neutral cleaner. Because the epoxy bond is non-porous, dirt does not penetrate the grout — periodic impregnation, as with cement grout, is not necessary.
Can Starlike® Pro also be used outdoors?
Yes. The UV resistance and thermal shock resistance from -20°C to +100°C make the product suitable for terraces, facade cladding, and other outdoor applications in the Benelux climate.
What is the difference between Starlike® Pro and ordinary cement grout?
Cement grout is porous and susceptible to mold, stains, and discoloration. Epoxy-based Starlike® Pro forms a closed, non-porous matrix after curing that limits water absorption to ≤ 0.1 g and is chemically resistant according to class RG (EN 12808-3). The initial investment is higher, but the absence of periodic maintenance, re-grouting, or impregnation makes it the more cost-efficient choice in the long run.
