Mapei Nivorapid is used for repairing, levelling and smoothing interior floors, walls, steps and arrises where very rapid hardening and drying are required.
By adding Latex Plus to Nivorapid, levelling with excellent bonding strength on metal surfaces, old rubber floors, PVC, needlepunch, chipboard, parquet, linoleum or similar (see technical data sheet for Latex Plus) is obtained. Nivorapid is a grey-brown powder composed of cementitious binders, selected graded aggregates
and synthetic admixtures prepared according to a formula developed in the MAPEI research laboratories.
Nivorapid mixed with water becomes an easily workable thixotropic paste with high bonding strength to substrates and rapid drying which allows subsequent installation operations for floor and wall coverings, or painting, within only 4-6 hours after application. Nivorapid hardens without shrinkage and without the formation of cracks or crazing. It develops high compressive and flexural strength and is very resistant to impact and abrasion.
Some application examples
The substrates must be sound, dry, free of dust, loose parts, paint, wax, oils, rust and traces of gypsum. Cement based surfaces that are not sufficiently sound must be removed or where possible consolidated with Prosfas, Primer MF, Eco Prim PU 1K, etc. Spread dry sand or Quartz 1.2 over the surface immediately after the treatment of one of the above mentioned products.
Cracks and fissures in the substrate must be repaired with Eporip or Eporip Turbo. In order to fix dust and to provide uniform absorbency of the substrate, dusty or very porous concrete surfaces must be treated with a coat of diluted Primer G (1 kg of Primer G with 1-3 kg of water) or Livigum (1 kg of Livigum with 5 kg of water).
Anhydrite screeds may only be levelled with Nivorapid after treating the surface with a suitable primer (Primer G or Eco Prim T diluted 1:1 with water).
Prime existing ceramic and natural stone substrates with a coat of Eco Prim T after mechanically abrading and cleaning the surface with a suitable detergent. Leave the primer to dry for 2-5 hours, according to the temperature and humidity level of the surrounding environment, and then spread on a layer of levelling mortar. Never wait more than 24 hours.
Preparing the mix
While mixing with a low speed electric mixer, pour a 25 kg bag of Nivorapid into a bucket containing 5.5 litres of clean water and mix until a uniform lump-free paste is obtained. The quantity of Nivorapid mixed in each batch should be used within 15 minutes (at a temperature of +23°C). Applying the mix Apply the mix with a long metal trowel. When it is necessary to apply several coats in rapid succession proceed with subsequent coats (distanced about 20-30 minutes according to the temperature and the absorption rate of the substrate).
The surface of Nivorapid is ready to receive ceramic tile coverings already after 4-6 hours. Wooden and resilient floors can be laid after 24 hours.
|VOC Content:||Very Low Emissons|
|Dry Solids Content:||100%|
|Suitable Substrates:||Internal floors and walls for ceramic, natural stone, resilient and wooden coatings|
|Theoretical Coverage:||1.6 kg/m² per mm of thickness|
|Mixing Ratio:||21-23 parts water per 100 parts of Nivorapid|
|Thickness:||From 1 to 20mm|
|Application Temp:||From +5°C to +30°C|
|Pot Life:||15 minutes at 23°C|
|Setting Time:||15-25 minutes at 23°C|
|Light Foot Traffic:||Approx. 2 hours at 23°C|
|Wait Time Before Bonding:||4-6 hours at 23°C|
|Cleaner / Thinner:||Clean tools with water immediately after use|
|Shelf Life:||12 months from date of production unopened|
|Packaging:||Available in 25 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.
Two-component solvent free epoxy adhesive for construction joints and for monolithic sealing of cracks in screeds.