Keim Silan Primer
  • Keim Silan Primer

Keim Silan Primer


Keim Silan Primer (Also known as Keim Silangrund), is a water repellent silane-based primer for use with Keim Mineral Paint Systems. 

  • Water repellent
  • Easy to apply
  • Non-flammable when dry
  • Helps resist the passage of waterborne salts
  • Can only be applied over bare surfaces

£79.00(ex. VAT)
£94.80 (inc. VAT)
Please choose your colour
Available for Delivery (See Delivery Options Below)


Keim Silan Primer works by penetrating the pores and any hairline cracks of mineral building materials. After evaporation of the solvent, the active component is deposited on the walls of the pore and, once subsequently coated with a Keim mineral paint system develops water repellent characteristics. Keim Silan Primer does not seal the pores of the building material, ensuring the water vapour permeability of the substrate remains virtually unchanged.

The manufacturer recommends it is particularly good practice to pre-treat horizontal and inclined surfaces with Silan Primer prior to redecoration to help shed water and protect the surfaces.

Top Features & Benefits

The following features apply:

  • Water repellent.
  • Easy to apply.
  • Non-flammable when dry.
  • Helps resist the passage of waterborne salts.
  • Can only be applied over bare surfaces.

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 Silan Primer may proceed.

Keim Silan Primer should be applied to bare areas as a flood coat, by brush or low-pressure spray, undiluted and within a period of 2 to 6 hours, and these times are critical, the first coat of Keim Mineral Paints must be applied. 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.

Clean tools with water immediately after use..

Product Details

Data sheet

For Use By
General Use
Base Type
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.

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Keim Silan Primer is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT