CERESIT CE 40 Aquastatic elastic waterproof grout in Natura shade is a ready-to-mix jointing compound supplied in a 2 kg pack for finishing tiled surfaces. Formulated to combine elasticity with water resistance, this grout is intended for narrow to medium tile joints and is suitable for indoor and outdoor areas exposed to moisture. The Natura colour provides a neutral, natural-looking finish that complements ceramic, porcelain and natural stone tiles while helping to maintain joint integrity under slight substrate movements.
Advantages
The grout offers elasticity that reduces the risk of cracking when tiles or substrates experience minor movement. Its waterproof performance improves durability and hygiene in wet zones by limiting water penetration through joints. The product is delivered in a pre-measured 2 kg package for easier handling and consistent mixing, and the Natura shade provides a versatile, unobtrusive appearance for many tile schemes.
Suitable for
- Grouting tile joints in bathrooms, showers and other sanitary rooms
- Balconies, terraces and outdoor tiled surfaces where water resistance is required
- Facades and façades cladding elements subject to moderate thermal or structural movement
- Indoor tiled floors and walls where a flexible joint material is preferred
When it may not be suitable
This grout is intended for narrow to medium width joints and is not formulated for very wide gaps that require mortar or special joint fillers. It is not a substitute for full waterproofing membranes or structural sealants in areas with significant movement or where a certified membrane system is required. For heavy chemical exposure or industrial floors, consider products specified for those conditions.
Key specifications
- Form: powder to be mixed with water
- Pack size: 2 kg
- Colour: Natura (neutral natural shade)
- Performance: elastic, water-resistant jointing compound
- Intended joint width: narrow to medium joints (check tile manufacturer guidance for exact widths)
- Application areas: indoor and outdoor tiled surfaces, sanitary rooms, balconies, façades
How to use
Mix the powder with clean water according to the manufacturer’s recommended ratio until a smooth, lump-free consistency is achieved. Apply the grout with a rubber float, pressing it firmly into joints and removing excess material across the tile surface. After initial setting, clean tiles with a damp sponge and allow final hardening according to ambient temperature and humidity. Follow any additional curing or protection times advised for wet area use before exposing the surface to water.
What to consider before purchase
- Confirm the Natura colour matches your tile and grout scheme; test on a small area if colour matching is critical
- Verify joint width requirements and suitability for your tile type (ceramic, porcelain, natural stone)
- Consider the quantity needed based on tile size, joint width and area to avoid running short
- Ensure this grout meets local requirements for wet-room installations or combine with a waterproof membrane where required
Usage recommendations
Use clean tools and water for mixing and cleaning. Work in manageable sections to prevent the grout from setting on tile surfaces. Observe recommended curing times before exposing joints to water, and avoid applying on frozen substrates or at very low temperatures.
