Flexible waterproofing mortar.

  • Protection and waterproofing of structures
  • Approved for potable water systems
  • Crack bridging properties
  • couverture

    Covers: 1,5 kg par couche

  • contenu

    Contain: Kit 5kg & 15kg

  • sol

    Surface: Burried areas

  • piscine

    Installation in swimming pools, ponds...

  • ce

    CE Marking

MEP®. DRY FLEX is a flexible, two component hydraulic mortar used for protection and waterproofing of structures. Once applied, it forms a bonded, flexible, protective film

MEP®. DRY FLEX is classified as surface protection systems for concrete under UNE-EN 1504-2:2005 Part 2:
CE CERTIFICAT No. 16/12793-1610-S / Surface protection systems for concrete.


MEP®. DRY FLEX is designed for
Waterproofing of structures
▪ Swimming pools, reservoirs, retention tanks, potable water reservoirs, engineering structures etc…
▪ Waterproofing of new and old buildings (internal and external)
▪ Under-tile sealant for public and private swimming pools
▪ Under-tile sealant or mortar screed for balconies, loggias and terraces
▪ Under-tile sealant for damp substrate
Protection of structures against
Weathering (engineering structures, silos, concrete domes, etc…)


▪ CE certify under UNE-EN 1504-2:2005 Part 2
▪ Protection and waterproofing of structures
▪ Excellent resistance to sea water and sulphated water
▪ Reduces carbonation of concrete by limiting movement of CO²
▪ Tolerates micro-cracking (classified Class A4 @ 20 oC : crack bridging properties, UNE-EN 1062-7:2004 Method A - C.1)
▪ Effective on negative or positive side
▪ High bond strength
▪ Non-toxic
▪ Good abrasion resistance
▪ Approved for potable water systems

  1. Surface preparation:

    ▪ The substrate must be clean, solid, sound and free of any traces of oil or dust. All unsound areas, flaky or peeling layers must be removed and repair with DURA®.REP FR
    ▪ Fill in honeycombing, air pockets and general defects, fill cracks and hollow joints
    (If repairs are required, use DURA®.REP FR)
    ▪ Surface should be pre-wetted, but not running with water during application
    Notes: New walls and floors must be allowed to cure for minimum periods to ensure that movement due to shrinkage does not affect the tilling

  2. Mixing

    ▪ Machine mix only – low speed (500 rpm).
    ▪ Proceed as follows to obtain a homogeneous and free of lumps paste
    - pour ¾ of the resin into a suitable container
    - add the powder gradually in order to obtain a plastic consistency
    - add the rest of the liquid and mix for a further 3 minutes
    ▪ Leave to stand for several 2-3 minutes
    NB: Never add more resin to the mix. Should the mortar stiffen up due to delays in application then discard the product and mix a fresh batch

  3. Application

    ▪ MEP®. DRY FLEX may be applied by short bristled block brush, trowel or spray
    ▪ A minimum of 2 coats of MEP®. DRY FLEX must be applied
    ▪ Apply a 1st coat allowing approximately 1.5 – 2 kg/m²
    ▪ The 2nd coat is applied after 6 to 24 hours’ drying time (depending on temperature) at a rate of 1.5 – 2 kg/m²
    ▪ The total thickness should be approximately 2 mm and never less than 1.5 mm, whatever method of application is used

  4. Reinforcing

    For substrates showing evidence of micro-cracking or which are likely to be subject to dimensional changes (water towers, structures exposed to thermal shock etc). The 1st coat should be reinforced by embedding MEP®. TRAM 02 mesh ensuring the mesh is fully covered. It is advisable to use the MEP®. TRAME 02 mesh for all specific reinforcement needs

  5. Possible covering materials:

    MEP®. DRY FLEX may be left bare or covered with tiling or a cement mortar screed
    MEP®. DRY FLEX may be painted with high quality PVA acrylic paint


    • Do not use for
    • High traffic areas


    ▪ Do not apply in wet weather, or in temperatures below 5ºC or over 35ºC
    ▪ Wind reduces open time and leads to reduced adherence
    ▪ Water tanks and ponds can be filled after 7 days’ drying


    ▪ Packaging: 15kg and 30Kg Kit
    ▪ Handling and storage: 6 months if kept in a dry cool place in the original packaging
    In more extreme conditions this period might be shortened
    ▪ Tools : Low speed mechanical mixer, short bristled block brush, trowel or spray