Keim Royalan Grob


We no longer stock this product, but can recommend Keim Soldalit Grob as a great alternative.

Please note: it is important to check that any alternative product is suitable for your requirements, as our suggestion is given in good faith but without warranty. If you are in any doubt please first contact our technical team on 0113 2455450 (option 2) or send a message to [email protected] where we will be happy to discuss your project.

Keim Royalan Grob is a highly-filled primary coat and filler for the Keim Royalan system which reacts chemically with the surface. Resists industrial pollution and extreme climatic conditions.

  • Water vapour permeable
  • Non-flammable
  • Water repellent
  • Mineral matt
  • UV and weather resistant
  • Resists industrial pollution and acid rain and extreme climatic conditions
  • Resists mould and fungal growth

Product not available
This Product has been Discontinued


Keim Royalan Grob is a highly filled primary coat and filler for the Keim Royalan system which reacts chemically with the surface. Can be used as a bridging coat on previously painted surfaces or to bridge hairline cracks and equalise the surface. Keim Royalan is formulated for use in extreme climatic conditions.

The Keim Royalan system offers water repellency, vapour permeability and forms a chemical bond with the mineral substrate. Keim Royalan Grob is made using pure inorganic mineral fillers, lightfast inorganic pigments, additives, potassium silicate binder and glass fibres.

Top Features & Benefits

  • Water vapour permeable.
  • Non-flammable.
  • Water repellent.
  • Mineral matt.
  • UV and weather resistant.
  • Resists industrial pollution and acid rain and extreme climatic conditions.
  • Resists mould and fungal growth.

Preparation & Application

Substrate Preparation
All loose, flaking and unstable material must be identified and then thoroughly removed, all surfaces must be thoroughly washed down with clean cold water to remove all surface dirt and dust. When all surfaces are clean, sound, wind dry, dust free and free from all surface contaminants, decoration using KEIM Mineral Paints may proceed.

KEIM Royalan Grob should be diluted with 20% by weight KEIM Royalan Dilution, brush or roller applied and worked well into all surfaces. After a minimum period of 12 hours a final coat of KEIM Royalan in the chosen colour may be applied in a like manner, undiluted.

Application Conditions
Ambient and substrate temperature above 5°C and below 30°C. Do not apply in direct sunlight or onto sun-heated surfaces, nor if it is raining or if there is an immediate likelihood of rain.

Drying Time
A drying time of at least 12 hours must be left before decorating with KEIM Royalan.

Cleaning of Tools
Clean with water immediately after use.

NBS Specifications

The NBS (National Building Specification) is a UK-based specification launched in 1973 and is used by building professionals and architects to describe the materials, standards and workmanship of a construction project. Keim provides documentation specific to this product that outline the NBS specifics. You can download these documents by locating the Keim Royalan product at the following link: Download the NBS Documents Here

Product Details

Data sheet

For Use By
General Use
Exterior / Interior Use
Exterior Use

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

questions Tracey James on 2022-02-23 10:41:56

Can Royalan be used over previously lime washed exteriors. Many thanks

Answer from Rawlins’ Technical Team: 

Yes, Keim Royalan and Keim Royalan Grob can be used in conjunction on clean, dry, sound and prepared lime washed external walls.

Question about the product

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