Description :

Structural R4-class, rapid-setting, shrinkagecompensated, thixotropic, fibrereinforced, cementitious mortar, applied in a single
layer from 3 to 40 mm thick, for repairing and smoothing concrete.
Planitop Smooth & Repair R4 Zero is part of the CO Neutral – Zero Impact on Climate Change line of
products. For Mapei, “zero impact on climate change” means that CO emissions measured throughout the
life cycle of products from the Zero line in 2023 using Life Cycle Assessment (LCA) methodology, verified and
certified with EPDs, have been offset through the acquisition of certified carbon credits in support of
renewable energy and forestry protection projects. A commitment to the planet, to people and to biodiversity.
For more details on how emissions are calculated and on climate mitigation projects financed through
certified carbon credits, visit the webpage zero.mapei.com.

Technical Characteristics :

Planitop Smooth & Repair R4 Zero is a one-component, thixotropic mortar made from special, highly reactive hydraulic binders, fine selected aggregates, synthetic polyacrylonitrile fibres, synthetic polymers and special admixtures according to a formula developed in the MAPEI Research Laboratories. Thanks to its particular formulation the product has excellent fatigue behaviour up to at least 300,000 cycles, which gives repaired structures a high level of resistance to cracking, including when subject to dynamic
loads induced during normal service conditions. This particular characteristic, together with the requirements of EN 1504, helps increase the durability of elements restored with Planitop Smooth & Repair R4 Zero. After mixing, the product forms a mortar with good workability and with setting and hardening times that can be modulated by adding Mapetard ES. It is applied by trowel in a single layer from 3 to 40 mm thick to repair and smooth over concrete. Planitop Smooth & Repair R4 Zero hardens without shrinking and is characterised by its excellent adhesion to concrete substrates.
Once hardened, Planitop Smooth & Repair R4 Zero has the following characteristics:

• excellent adhesion to both old concrete (= 2 MPa), if wetted beforehand with water, and to steel
• reinforcement, especially when treated with Mapefer or Mapefer 1K Zero anti-corrosion and re-alkalising
• cementitious mortar, certified EN 1504-7 “Corrosion protection of reinforcement”;
• high dimensional stability and, therefore, low risk of cracking and crazing during both the plastic phase and when hardened;
• thermal compatibility to freeze/thaw cycles, measured as adhesion according to EN 1542;
• high resistance to carbonation;
• impermeable to water.
  Planitop Smooth & Repair R4 Zero is a product with very low emission of volatile organic compounds (VOC),
  which safeguards the health and safety of installers and final users. It is certified as EC1 Plus by the German
  association GEV.