Morcem® Yeso Rapido

This quick-setting plaster for manual application offers the ideal solution for supporting frames and rulers, as a bonding agent for bricks and other building material for interior partitions, and for holding electrical boxes and conduits. The application procedure is very simple and gives fast results.

Download technical data sheet

Additional information

Features and applications

  • Quick, simple mixing system.
  • Guarantees quick fixing.
  • This product is faster than other plasters.
  • High mechanical strength.
  • Extended mechanical properties.
  • Joint compound in the construction of partitions.
  • Filling and levelling of minor surface irregularities and holes.
  • Auxiliary binding agent in construction items.
  • Suitable for achieving the plaster base for finish plastering of surfaces.

Instructions for use

  • Sprinkle plaster powder onto the water until it no longer absorbs the water. Then mix plaster by hand to obtain a homogeneous paste. (water/plaster ratio = 0.8-1).
  • Once mixed, allow plaster to rest for about 5 to 8 minutes and start to plaster.
  • The working time is approximately 15-20 minutes (depending on the conditions of use).

Cautions and recommendations

  • Do not add any kind of additives which could alter the setting process and final strength of the product.
  • Do not add water after letting the product rest, since this may alter the product's final strength.
  • Be sure to clean tools and mixing equipment thoroughly prior to further batch mixing.
  • Facings must be free from dirt, saltpetre, and efflorescence to ensure perfect plaster adhesion.
  • Use clean and fresh potable water always at a temperature in excess of 5°C and below 40°C.
  • Ensure that there is adequate ventilation for an optimal drying process.


17 kg plastic-coated paper bags.
Be sure to store this product in a dry place and protect from moisture to preserve its properties.
Storage up to 12 months in its original closed container, sheltered from weather and moisture.

Technical data

Water/Plaster Ratio 11-18 litres per bag
Setting time <15 minutes
Workability >20 minutes
Shore Hardness C ≥45
Compressive strength ≥2 N/mm2
Bending resistance ≥2 N/mm2
Output 1.5 m2/bag/cm thickness ±5%

Note: Working times can vary depending on the water/plaster ratio, temperature, water pH, substrate type, mixing speed and time.


The instructions for use are given according to our tests and knowledge and do not imply any commitment by GRUPO PUMA nor free the consumer from the examination and verification of the products for their correct use. Claims must be accompanied by the original packaging to allow a proper traceability.

GRUPO PUMA is not responsible, in any case, for the application of its products or constructive solutions carried out by the application company or other parties involved in the process and / or execution of the work, limiting the responsibility of GRUPO PUMA exclusively to the damages directly attributable to the supplied products, individually or integrated in systems, due to failures in their manufacturing process.

In any case, the drafter of the work project, the technical management or the person responsible for the work, or collaterally the application company or other parties involved in the process and / or execution of the work, must ensure the suitability of the products addressing the characteristics of them, as well as the conditions, support and possible pathologies of the work in question.

The values obtained by GRUPO PUMAS's products or its constructive solutions that, as the case may be, are determined by the EN standards or any other regulation that applies to it in each case refers exclusively to the conditions specifically stipulated in said regulation and that are referred to, among others, to certain characteristics of the support, humidity and temperature conditions, etc. without being them required in the tests obtained under different conditions, all in accordance with the relevant regulation.