CERESIT CE 40 Aquastatic in color Siena is a flexible, waterproof tile grout supplied in a 2 kg package. Formulated for filling joints between ceramic, porcelain and natural stone tiles, this grout combines elasticity and water resistance to perform in both wet and dry environments. It is suitable for floors and walls in bathrooms, kitchens, balconies and other interior or semi-exterior applications where movement and moisture exposure require a resilient joint material.
Advantages
The grout provides durable water resistance and flexibility to accommodate minor substrate movement and thermal changes. Its formulation reduces the risk of cracking and maintains joint integrity in wet zones. The Siena shade offers a neutral warm tone that complements a range of tile materials and interior styles while helping to mask light soiling. Ready-to-mix consistency and packaging in a 2 kg unit make it convenient for smaller renovation and finishing tasks.
Suitable for
- Filling joints between ceramic and porcelain tiles on floors and walls
- Grouting natural stone tiles with moderate movement and moisture exposure
- Wet areas such as bathrooms, shower enclosures and kitchen splashbacks
- Balconies and semi-exterior areas protected from direct weather
- Small repair jobs and renovation projects requiring a 2 kg package
When it may not be suitable
This grout is intended for joints where elasticity and water resistance are required but it may not be suitable for joints subject to very high movement or structural settlement; in such cases, a specialized highly flexible sealant or movement joint system should be used. It is also not formulated for large industrial floors or heavy-traffic commercial areas where different high-durability or chemical-resistant grouts may be necessary.
Key specifications
- Type: Flexible waterproof cement-based grout
- Color: Siena (warm neutral tone)
- Package size: 2 kg
- Application areas: Floors and walls, interior and semi-exterior protected areas
- Suits substrates: Ceramic, porcelain and natural stone tiles
- Performance features: Elasticity, moisture resistance
How to use
Mix the grout according to the manufacturer's proportions with clean water to obtain a homogeneous, lump-free consistency. Apply the grout into joints using a rubber float, pressing material firmly to completely fill the gaps. Remove excess grout with the float held at an angle and finish the joint surface after initial stiffening using a damp sponge or felt pad to achieve the desired texture. Allow adequate curing time and protect from direct water contact until the grout achieves sufficient strength.
What to consider before purchase
- Verify joint width and tile type to ensure compatibility with a flexible cement-based grout
- Estimate required quantity based on tile size, joint width and depth to determine if a 2 kg pack is sufficient
- Consider color matching with your tile and existing grout for consistent appearance
- Ensure substrate preparation and waterproofing of wet zones meet recommended standards
Usage recommendations
For best results, use CE 40 Aquastatic on clean, dry joints and follow drying and curing times on the product instructions. For shower trays and permanently wet installations, combine with appropriate substrate waterproofing. Test the Siena color on a small area if exact shade matching is required.
