Mapei Mapefer 1K

Non Hazardous
One component corrosion-inhibiting cement for the protection of reinforcing rods.
Available in 4 x 5 Kg in Blue
£69.24 £57.70
In stock
Product Description

Mapei Mapefer 1K is a single-component corrosion-inhibiting cement mortar for the protection of reinforcing rods and adhesion improver for concrete repair mortars.

Mapei Mapefer 1K has been formulated by Mapei Research & Development laboratories based on polymers in powder form, cementitious binders and corrosion inhibitors to be applied on reinforcing rods to prevent rust formation. Mapefer 1K provides corrosion inhibition action due to its high alkalinity, excellent adhesion to metal and the presence of corrosion inhibitors. Mapefer 1K is resistant to saline fog and impermeable to water and aggressive gases in the atmosphere therefore protecting the rebars.

Best Uses

Mapei Mapefer 1K is suitable for use on underground concrete constructions for the protection of reinforcing rods and as an adhesion improver for concrete repair mortars.


Mapei Mapefer 1K is supplied in powder form and is mixed with water to form a lump-free homogeneous paste. Apply Mapefer 1K using a paint brush within 1 hour of mixing. Two coats are recommended, the second coat to be applied within 2-24 hours of application of the first coat, to a minimum thickness of 2mm.

Technical Details


  • Mapei Mapefer 1K is suitable for use on underground concrete
  • Corrosion-inhibiting cement mortar
  • Suitable for protection of reinforcing rods in the repair of concrete
  • Suitable for underground constructions

Technical Info

Components: Single Pack
Type: Powder
Finish: n/a
Stock Colours: Blue
Tintable: No
VOC Content: -
Volume Solids: -
Suitable Substrates: Concrete
Application Method: Brush
Theoretical Coverage: 100 g/m per reinforcing rod with an 8mm diameter
Minimum Thickness: 2mm
Mixing Ratio: 100 parts of Mapefer 1K with 20-22 parts of water
Induction Time: -
Pot Life: Apply by paint brush within 1 hour of mixing
Wait Time between Coats: Approximately 2 hours
Wait Time Before Applying Repair Mortar: 6-24 hours
Fully Cured: -
Cleaner / Thinner: Clean tools with water while product is still fresh
Shelf Life: 24 months from date of production unopened 
Packaging: Available in 4 x 5 Kg bags

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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