KEIM Restauro Grund

Non Hazardous
A natural stone replacement material for lining deep areas of damage (> 2 cm) and a core material for open form casting.
Available in 30 Kg
£165.60 £138.00
In stock
Product Description

KEIM Restauro-Grund is a natural stone replacement material for lining deep areas of damage (> 2 cm) and a core material for open form casting.

Best Uses

Keim Restauro Grund is an ideal material for repairing stone façades with deep areas of damage greater than 10mm.


Hacking out: Defective natural stone which is to be repaired with KEIM Restauro should be hacked back to a sound base using an indented chisel or similar tools. Especially on flat areas of natural stone, a box-shaped recess should be formed when hacking back to provide a good key for the restoration mortar.

Reinforcement: Supporting reinforcement may be required for protruding natural stone features and Restauro reinforcement materials should be used for this purpose.

Cleaning: Any stone dust must be carefully removed from the areas to be repaired with compressed air or with clean water and a brush.

Pre-Wetting: The restoration mortar must only be applied onto a moist substrate. Adequate pre-wetting is thus absolutely essential. Remove any excess water with a sponge.

KEIM Restauro-Grund is mixed with water only, approx. 4.0 l per 30 kg. Use a mixer or compulsory mixer for larger quantities. After a maturing period of 5 minutes, the mortar should be of a consistency suitable for application by throwing. The matured mortar is thrown into the hacked back and pre-wetted damaged area, only filling the cavity up to approx. 2 cm beneath the original stone surface. Total layer thickness must not exceed 5 cm per application. Protect freshly applied mortar from sun, wind and rain. Once the base mortar has set, roughen the surface and allow at least 1 day to elapse before further finishing operations.

Technical Details


Cover surfaces which are not to be treated, in particular plants, etc. Protect the eyes and skin from splashes. Keep out of reach of children.

Technical Info

Components: Single Pack
Type: Mineral Dry Mortar
Finish: -
Stock Colours: Grey
Tintable: No
VOC Content: -
Volume Solids: -
Suitable Substrates: Stone
Application Method: Trowel
Theoretical Coverage: Approximately 10kg/m2 for 5mm thick repair
Wet Film Thickness (WFT): -
Dry Film Thickness (DFT): -
Processing Time: Max. 45 minutes
Setting Time: More than 4 hours
Touch Dry: hours at 20°C
Compressive Strength:  Approx. 29N/mm2
Bonding tensile strength: Approx. 8N/mm2
Cleaner / Thinner: Clean tools with water immediately after use
Shelf Life: 6 months in tightly closed containers
Packaging: Available in 30 Kg sacks