Morcem® Ultra Rápido

Fast-setting binder. Designed as a setting and hardening regulator for making fast-setting mortars with high strength and dimensional stability.


Download technical data sheet

Additional information


Hydraulic binders and additives.

Features and applications

  • Application as pure paste or mixture.
  • Adjust setting by addition of retarder.

As paste:

  • Securing bolts and wedges.
  • Sealing water leaks.
  • Setting regulator in mortars.

As mortar:

  • Minor repairs of concrete and floors.
  • Securing and positioning of manholes, pipes, lintels, junction boxes, etc.
  • Quick masonry, grouting and restoration.
  • Presentation, joints and edges.


  • Substrates should be free of dust, grease, paint and alien products.
  • All usual masonry substrates are acceptable: ceramic bricks, concrete blocks, concrete and cement mortars (min. M 7.5).

Instructions for use

  • Wet the substrate thoroughly and, when the excess water has been absorbed, apply the product to the desired thickness.

As paste:

  • Put water into the container (6-7 liters per bag), pour in the powder and mix (mechanical mixing is recommended) until getting a creamy, homogenous paste of the right consistency.

As mortar:

  • Put the aggregate and the cement in a 1:1 ratio and, if necessary, the retarder additive into the container, mix dry, add water (6.5 - 7.5 liters per bag) and mix mechanically until getting a creamy, homogenous paste of the right consistency.


  • A few minutes after application the setting begins and, from then until the hardness becomes too great, the product can easily be sculpted, with any suitable metal instrument, to remove protrusions, smooth burrs, etc.
  • Apply all the paste before setting begins.

Cautions and recommendations

  • Do not apply at temperatures below 5⁰C or above 30⁰C.
  • Do not apply if there is a risk of frost.
  • Use clean sand for its use as mortar.
  • Avoid using too much mixing water.
  • If there is strong wind or direct sunlight, protect the product and wet it again to avoid it drying too quickly.
  • Only mix the amount that you can use in the work time available.
  • Do not remix or add water to a mortar that has begun to set. It cannot be used and should be disposed of.
  • Do not apply on plaster or plaster products.
  • The temperature affects the time when setting begins, in hot weather it makes it shorter and in cold weather it makes it longer.


20 Kg plastic-coated bags and 5 Kg polyethylene bags.
Shelf life: 12 months in its sealed original packaging, sheltered from weather conditions and humidity.

Technical data

(Statistical data obtained under standard conditions)

Appearance GREY powder
As paste:
Time when setting begins (23ºC and 50% humidity) ≤ 4 min
Time when setting ends (23ºC and 50% humidity) ≤ 5 min
As mortar (1:1):
Compressive strength (after 15 min) > 3.5 Mpa
Compressive strength (after 1 hr) > 7.5 Mpa
Compressive strength (after 24 hrs) > 15 Mpa
Compressive strength (after 7 days) > 25 Mpa
Compressive strength (after 28 days) > 30 Mpa
Approximate yield According to use



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.