Centrecoat MMA Multi-Use Primer

Part A: UN1866 (Class: 3, Pk Grp: II), Part B: UN3106 (Class: 5.2)
A general purpose primer for Centrecoat MMA coatings used on concrete, block paving, mortars, and screeds.
Available in 5 Kg
£118.94 £99.12
In stock
Product Description

Centrecoat MMA Multi-Use Primer. Used prior to any of the Centrecoat MMA range of coatings, mortars, and screeds. MMA Primer offers outstanding adhesion to concrete, block paving, steel, masonry, and marine plywood.

Best Uses

Centrecoat MMA Multi-Use Primer exhibits outstanding adhesion to concrete, block paving, as well as steel, masonry, and marine plywood. Centrecoat MMA Multi-Use Primer has fast curing characteristics to allow for rapid application of subsequent coatings, mortars or screeds. MMA Multi-Use Primer is often over coatable in less than 30 minutes.

  • Rapid cure, even at low temperatures
  • Very good chemical resistance
  • Excellent adhesion
  • Impervious to water
  • Pre-packed units ready for use
  • Easily applied

Centrecoat MMA Multi-Use Primer is supplied as a two pack material, comprising pre-weighed amounts of Base and Catalyst components. The mix ratio is fairly tolerant to variations within the range of 1% to 5% addition of Catalyst, so that part packs may be used if care is exercised.


Concrete surfaces shall be a minimum of 21 days old and/or the residual moisture content shall be below 6%. Ensure that the concrete is clean and free from dust, laitance, grease, oil, curing compound, and existing paint finishes, etc. Suitable mechanical treatment such as vacuum grit blasting or mechanical scabbling is
recommended to ensure the removal of contaminants and to provide a mechanical ‘key’ for the primer.

Pour the contents of the CATALYST container into the BASE container and thoroughly mix, preferably by mechanical means.

Apply by squeegee to distribute evenly over the floor, and then use a long nap lambswool roller to achieve a nominal application rate of 0.25-0.30kg/m2. Allow to cure for a minimum of 40 minutes prior to applying any other of the Centrecoat MMA product range. If an interval of more than 8 hours between primer application and subsequent overcoating is anticipated then the primer shall be scattered with fine silica sand before hardening.

Clean equipment with Centrecoat MMA Tool Cleaner immediately after use.

Technical Details
Components: Two Pack
Type: MMA
Stock Colours: Straw Coloured Liquid
Tintable: No
VOC Content:
Volume Solids:
Suitable Substrates: Steel, masonry, marine plywood.
Application Method: Squeegee and Long Nap Lambswool Roller
Theoretical Coverage: A 5kg pack is sufficient to prime an area of 15-20m². Exceptionally porous surfaces may require a second coat.
Wet Film Thickness (WFT):
Dry Film Thickness (DFT):
Induction Time: -
Pot Life: 15 minutes at 20°C
Surface Dry:
Overcoatable: 40 minutes at 20°C
Fully Cured:
Cleaner / Thinner: Clean equipment with Centrecoat MMA Tool Cleaner immediately after use.
Shelf Life: Store in dry conditions, out of direct sunlight, at temperatures between 10°C and 20°C. Adequate ventilation of the storage area should
be provided. Keep containers tightly closed when not in use. Minimum shelf life of 6 months when stored in original, unopened containers in accordance with manufacturer’s instructions.
Packaging: Available in 5 Kg

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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