WHERE TO USE
Repair of deteriorated vertical or horizontal concrete surfaces with mortar possessing medium mechanical performance characteristics. Some application examples
Planitop G40 SP is a premixed powdered mortar composed of cement, graded aggregates and special additives manufactured from a formula developed in the MAPEI research laboratories. When mixed with water Planitop G40 SP forms an easy to apply lightweight thixotropic mortar that can be applied without sagging even in substantial thickness on overhead and vertical surfaces without formwork.
When fully cured, Planitop G40 SP has:
HOW TO USE
Preparing the mortar
If so, mix small amounts at a time for at least 5 to 6 minutes until a completely homogeneous paste is obtained. Keep in mind that mixing by hand requires a larger amount of water. This adversely affects several of the mortar’s characteristics, including mechanical strength, shrinkage, impermeability, etc. The expansion of Planitop G40 SP is calculated to compensate for plastic shrinkage. Applying Planitop G40 SP without formwork in thickness of more than 2 cm should be done only after reinforcing and roughening the surface of the concrete, taking care to cover the reinforcement with a layer at least 1 cm thick. Lesser thickness can be applied without reinforcing as long as the substrate has been substantially roughened to counter the expansion. The expansion phase ends during the first days of curing.
The mortar can be applied with a trowel or spray without formwork even on overhead or vertical surfaces in maximum thickness of 50 mm per layer. Planitop G40 SP can also be sprayed on, using a suitable type of equipment. Reinforcing bars must be treated with Mapefer before applying Planitop G40 SP. Where necessary apply a second layer of Planitop G40 SP before the previous layer has finished setting (within 4 hours at +23°C). The complete repair cycle calls for smoothing with Mapefinish or Mapelastic, and then painting with Elastocolor.
Precautions to be taken during application
To prevent the mix water from evaporating too quickly, which can cause surface cracks from plastic shrinkage, spray water on the surface for the first 24 hours of curing, or apply an anti evaporation compound such as Mapei Biblock or Mapecure SP. Cleaning Mortar that has not yet hardened can be removed from tools with water. After setting, cleaning is very difficult and can only be done mechanically. CONSUMPTION Approximately 15 kg/m2 per 10 mm of thickness. PACKAGING 25-kg bags. STORAGE Store in a dry, ventilated place with shelter.
SAFETY INSTRUCTIONS FOR THE PREPARATION AND APPLICATION
Contains cement that in contact with sweat or other body fluids produces an irritant alkaline reaction and allergic reactions to those predisposed. It is highly recommended to use gloves and eye protection. For further information, refer to the Material Safety Data Sheet.
While the indications and guidelines contained in this data sheet correspond to the company's knowledge and wide experience, they must be considered, under all circumstances, merely as an indication and subject to confirmation only after long-term, practical applications. Therefore, anybody who undertakes to use this product, must ensure beforehand that it is suitable for the intended application and, in all cases, the user is to be held responsible for any consequences deriving from its use.