Morcem® Dry F

Bicomponent flexible mortar for concrete waterproofing.

1504-2 - CE 14891 - EN DAP

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Additional information


Bicomponent product based on hydraulic binders and synthetic resins.

Features and applications

  • Permeable to water vapor.
  • Resistant to freezing and thawing.
  • Excellent adhesion.
  • Does not alter the drinkability of water.
  • Remains flexible.
  • Resistant to sulfates in weak concentrations and non-acidic environments.
  • Waterproofing water tanks, ponds, swimming pools, fountains, basements, underground car parks, elevator shafts, tunnels, etc.
  • Waterproofing the inside of drinking water tanks.
  • Waterproofing and protecting concrete from carbonatation, freeze thaw cycles, attack by chlorides in public works, irrigation channels, water-treatment plants, desalination plants, bridges…etc.
  • Waterproofing of balconies and terraces (maximum 20 – 25 m2).
  • Waterproofing external walls on foundation structures.
  • Repair and protection of surfaces exposed to freezing and thawing conditions: overhangs, balconies, flat roofs, terraces, cornices, etc. 
  • Waterproofing of surfaces susceptible to movement, with positive and negative hydrostatic pressures.
  • High yield.


  • The substrate must be sound, clean, and free of grease, oil, dust and badly-bonded parts. 
  • The absorbent substrates should be previously wetted until they are saturated, preventing waterlogging. 
  • Cracks and damaged concrete have to be repaired beforehand with MORCEMREST RF 15 or MORCEMREST RF 35.
  • For the waterproofing of old terraces, swimming pools and balconies, you must make sure:
    • That the existing ceramic coating is well adhered to the substrate (stable substrate).
    • That the ceramic coating is totally clean: free of dust, dirt, grease, varnishes, waxes, oil, moulds, and traces of lime...

NOTE: To carry out this type of applications, consult the technical department beforehand, in order to monitor the work.

Instructions for use

Mixing the mortar:

  • Start by manually or mechanically mixing the Component A powder with 3/4 of the Component B liquid. Then add the remaining liquid and mix again until achieving a homogenous mass. 


  • Wet the surface without leaving an excess of water. MORCEM DRY F is applied in two coats, each 1 mm thick, with a brush, long-haired roller or mortar projection pump.
  • Apply the first layer in one direction and leave it to set for an hour (at 20ºC). After the required time, apply a second layer in the opposite direction. As the drying time may vary depending on the environmental conditions, it should be borne in mind that the purpose of this operation is to apply a second layer when the first one is not wound, so that both of them finally act in a monolithic way. In no case apply when the first one is too dry, as we would obtain a two-layer scheme in which the adherence and stability of the set could be damaged.
  • To treat cracks with possible movements, it is recommended to reinforce the coating with a fibre-glass mesh on the second layer.  Immediately afterwards, place an additional layer of MORCEM DRY F on the same mesh.
  • Wait at least 2 days before being covered with the ceramic coating.
  • The final finish can be done by smoothing with a trowel, or by tapping with a sponge mat, depending on the desired texture.
  • MORCEM® DRY F will be applied as uniformly as possible, to avoid excess material causing cracks in it.
  • Wait at least 2 days before filling with water
  • Wait at least 2 days before being covered with ceramic tiles


  • Protect from the wind, frost and sun during hardening.  To prevent excessive drying out, it is recommended to cover the surface with wet hessians or plastic during curing.

Cautions and recommendations

  • Do not apply below 5ºC nor above 30ºC.
  • Preferably do not apply with the risk of frost, rain, strong winds or direct sun; or in that case; protect it properly.
  • To ensure waterproofing, the minimum thickness should be 2 mm.
  • At critical points of the element to be waterproofed, it is recommended to arm the cladding between the two layers with a thin grid mesh strip, MALLA DRYPOOL or GEOTEXTIL PU (100 gr), which must be placed as carefully as possible, avoiding bags or folds in the framework structure. . The joints of the reinforcement will be made by overlapping with a minimum width of 5 cm.
  • For the union between wall-wall, wall-screed, wall-ceiling the application in the form of a half-round 5 x 5 cm of MORCEMREST RF 15 or MORCEMREST RF 35 is recommended.
  •  Consult the Technical Department for any further application that may have not been specified in this Technical Data Sheet.
  • For all information regarding the safety in the handling, transport, storage and use of the product check the updated version of the Safety Data Sheet of the product.
  • Do not add cement, sand or any other substance which will alter the product properties.
  • Instruments and tools should be cleaned with water immediately after use to prevent material hardening, which has to be eliminated by mechanical means.
  • Wash the waterproofed surface with clean water 48 hours after application. Repeat the operation at least twice before filling the tank. 


MORCEM DRY F comes in bags of 20 Kg of powder and bottles of 7,8 Kg of liquid. Shelf life: 1 year in sealed original packaging, sheltered from weather conditions and humidity.

Technical data

(Statistical data obtained under standard conditions)

Aspect Component A:Grey Powder
Component B:White Liquid
Density of paste Aprox. 1,7 gr/cm3
Thickness per coat 1 mm.
Thickness applicable 2 -3 mm
Adhesion (Flexible system without Traffic) > 0,8 N/mm2
Adhesion on concrete > 1,5 N/mm2
Resistance to positive and negative hydrostatic pressure 15 bar
Permeability to water vapor

Class 1

SD < 5 m (Permeable to water vapor)

CO2 permeability Sd > 50 m (Raincoat to CO2)
Crack bridging capacity

Class A5 (-10ºC)

Class A5 (+20ºC)

Sulfate resistance (50 gr/l MgSO4) NFP 18.837 < 850 µm


Diffusion of chlorides EN 13396 Standrad 0,16 Result 0,06


Crack bridging capability
Up to 2 mm (minimum thickness of 2 mm; always for temperatures above -10 ° C)
Note: it is recommended to reinforce with a mesh for the crack covering/bridging.
Absorption by capillarity < 0,1 kg/m2 x h0.5
Elongation at break Approx. 45%
Pot life of the mixture 35-45 minutes
Yield 1,5 Kg/m2/mm espesor

NOTE: Water potability certificate available.

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EN 14891 Standard: Cementitious Membranes    Classification: CM02P
Test Acceptance and rejection limits Values obtained
Waterproofing to pressurized water Zero penetration Positive pressure: 15 atm
Negative pressure: 15 atm
Crack bridging capacity at + 23ºC according to EN: 14891 – A.8.2 (mm) > 0,75 > 0,90
Crack bridging capacity at - 20ºC according to EN: 14891 – A.8.2 (mm) > 0,75 > 0,75
Initial adherence according to EN: 14891 - A 6.2. > 0,5 > 0,5
Adhesion after immersion in water according to EN:14891 – A 6.3. (N/mm2) > 0,5 > 0,5
Adhesion after heat action according to EN: 14891– A 6.5. (N/mm2) > 0,5 > 0,5
after H / D cycles according to EN: 14891 - A 6.6. (N/mm2) > 0,5 > 0,5
Adhesion after immersion in basic water according to EN: 14891 – A 6.9. (N/mm2) > 0,5 > 0,5
Durability adhesion in chlorinated water  > 0,5 > 0,5


CE Mark

Avd. Agrupación Córdoba, Núm.17 14014 (Córdoba) 
Nº: 210108


Two-component, flexible, coating mortar for protecting surfaces and
waterproofing concrete with a minimum layer thickness of 2 mm.

CO2 Sd>50m
Water vapour permeability Class 1
Capilary absorption and water permeability w<0.1kg/m2 x h0.5
Thermal compatibility Pass
Crack-bridging capacity  Class 5
Adhesive strength by tensile test ≥ 0.8 N/mm2
Adhesion on wet concrete >1.5 N/mm2


Environmental Product Declaration (EPD)

Cement based mortar prepared with aggregates that are supplied close to the production center, which reduces the greenhouse gas emissions that would otherwise arise from their transport. Manufactured in production centers with an Environmental management certified system following ISO 14001 regulation, offering a firm promise of sustainability and respect for the environment.
Cement based mortar with type III ecological label (the most strict) Environmental Product Declaration verified externally by AENOR.


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.